What types of wire are there?

Wire, its types

- a metal product with a very small cross-sectional diameter. The wire is usually made of round, less often hexagonal, square, trapezoidal or oval cross-section from steel, aluminum, copper, nickel, titanium, zinc, their alloys and other metals. Bimetallic and polymetallic wires are also produced.

Most often it is made from a round, less often hexagonal, square, trapezoidal or oval section from steel, aluminum, copper, nickel, titanium, zinc and their alloys, as well as from refractory and noble metals.

Wire drawing is a metal forming process characterized by gradual single or multiple drawing of the latter through a special drawing tool designed to gradually reduce the cross-section of the original workpiece.

Wire rod is used as a raw material for drawing. Wire rod is a metal cast to a certain desired cross-section, which is then processed in a drawing machine.

The drawing process is the optimal method for making wire, since this process leaves virtually no waste (no metal shavings).

The drawing process also slightly changes the structure of the metal, which improves its strength. At the same time, hardness increases and ductility decreases. This phenomenon is called cold hardening. Billets made of steel, copper, nickel, aluminum and titanium alloys are produced mainly by hot rolling; from pure aluminum, zinc and some copper alloys - continuous casting; from noble metals, bimetals and polymetals.

The wire is obtained by broaching ( drawing ).

Hot drawing - drawing under conditions of post-recrystallization temperatures (up to 900 °C).

It is used for those metals and alloys that cannot be drawn at normal temperatures due to low ductility: tungsten, molybdenum, some titanium and aluminum alloys. Heating of the wire directly in the process flow with drawing is carried out, as a rule, by electric contact or induction methods.

Thermal drawing - drawing at temperatures of up to - or near-recrystallized order up to 500 ° C (high-speed steel).

Low-temperature drawing - drawing in the temperature range from - 60 ° C to - 180 ° C

It is of interest for the production of wire from high-alloy steels with an austenitic and austenitic-ferritic structure, as it helps to increase the stability of austenite, increase ductility and improve the mechanical properties of the drawn metal.

Wire usage:

The wire is used for the manufacture of electrical wires, hardware, springs, drills, thermocouples, electrodes, electronic devices, the manufacture of other specific products (for example, champagne muzelle, bucket handles), reinforcement of building structures (fiber), in printing, for welding (used electrodes, welding wire) as a material for the manufacture of chain-link mesh and other types of mesh.

Soft (knitting wire) is actively used in the agricultural sector (for tying vineyards and hops.

The wire is classified:

by type of processing:

* thermally treated. * thermally untreated.

by surface type:

* uncoated wire. * galvanized wire. * polymer-coated wire. Wire is divided into groups and grades of steel. Ordinary quality wire (OK) is made from low-carbon steel by drawing from steel grades: St0M, St0, St1, St2, St3 of all degrees of deoxidation according to DSTU 2770-94.

Basically the wire is:

— Galvanized wire — Wire of ordinary quality — VR-1 for reinforced concrete concrete — Welding wire — Barbed wire — Spring wire.

The abbreviation TO (heat-treated) denotes soft (annealed or knitting wire ).

The numbers following the letters indicate the carbon content in hundredths of a percent.

Source: http://www.universal-center.com.ua/vidi-provoloki.html

Types of metal wire: understanding the variety of hardware

Don’t drag your feet - they will tell a person who is talking boringly about something. Meanwhile, pulling out the gimp in Rus' was considered a skillful activity. The current wire - the gimp - was carefully pulled out with tongs from a piece of hot gold, silver or copper. And then they used such threads to embroider on velvet or morocco.

Today, wire is produced industrially: you can’t pull the ropes anymore, the production speed has increased thousands of times. And the scope of application has expanded: metal wire is used in everyday life and industry, in art and medicine. Today it is difficult to find an area where you can do without this hardware.

Steel wire: types and applications

Metal wire is made of aluminum, zinc, nickel, titanium. However, the most popular material is steel. It is an alloy based on iron and carbon, and also contains other elements.

Carbon is needed for the hardness and strength of a metal product. By adding chromium to the alloy, stainless steel is obtained. This alloyed (reinforced) composition is resistant to corrosion, hence the name of the material.

Depending on the type of steel, the following types of wire are distinguished:

• Low carbon wire: carbon content reaches 0.25%. Manufactured according to GOST 3282-74. The diameter of the steel thread is 0.2–6.2 mm. Hardware is produced by cold drawing. Finished products are packaged in sandwiches, coils or coils. This is a general purpose wire.
• Alloy wire: an indispensable consumable for welding work. The wire is marked depending on the grade of steel and the atmosphere in which the welding will be performed. The diameter of the rods is 0.3–12 mm.
• High-alloy wire: “white bone” among hardware products, the content of alloying additives exceeds 10%. This is the steel with the best performance indicators. TRADING HOUSE OF GRIDS offers stainless wire made of high-alloy steel of the following grades: AISI 201, AISI 304, AISI 316, AISI 321 and others. Austenitic steel is resistant to corrosion, cooling and heating.

To improve anti-corrosion properties, low-carbon wire is additionally galvanized. Hardware is manufactured in accordance with GOST 3282-74. The steel thread is dipped into a zinc solution up to four times and then fired. The diameter of the finished products reaches 2–6 mm.

Steel wire also differs in the type of section. Most often cylindrical or round is used, but wire with triangular, square and hexagonal cross-sections is also produced.

Where is steel wire used?

Wire is an ideal “semi-finished product” for the manufacture of other metal products.

Options for using wire:

• production of other hardware - meshes, springs, ropes, cables;
• welding work;
• knitting reinforcement;
• production of fasteners;
• wire for stitching brochures and magazines;
• telegraph wire;
• making needles;
• creation of decorative products, jewelry;
• parts of electrical appliances.

Non-ferrous metal wire

When people still had no idea about the steel alloy, wire made of non-ferrous metals was already used, and on different continents.

The Slavs and ancient Egyptians made jewelry from copper and bronze wire. Today, non-ferrous metal hardware is in demand in industry and the economic sphere.

What non-ferrous metals are used to make wire:

• brass (semi-tombak);
• nickel;
• bronze;
• copper;
• fechral;
• nichrome.

Wire made of non-ferrous metals is produced with a cross-section of 0.03 mm. Despite the thinness of metal threads and plasticity, colored wire is durable and resistant to corrosion. Even in an aggressive environment it maintains an aesthetic appearance.

Today, colored wire meshes are used for filtration of gases and liquids and separation. Laboratory and test sieves are made from hardware, which are used in the chemical industry and pharmaceuticals. Protective screens are used in instrument making and electrical engineering.

Metal wire is not just a workpiece, it is the basis for hardware and a structural element in other products.

Source: https://td-mc.ru/blog/vidy-metallicheskoy-provoloki-razbiraemsya-v-metiznom-raznoobrazii

Steel wire GOST: description and varieties, sizes and markings, packaging and applications

Steel wire is used in various fields of industry, for household needs and artistic creativity. Steel products in the form of cord or thread are distinguished according to their main characteristics. Dimensions and performance properties are established by state and interstate standards.

The main characteristics by which products are divided are:

1. Cross-sectional size and shape;
2. Type of final processing;
3. Surface type;
4. Chemical composition of steel;
5. Application area.

Products are divided into groups based on thickness. Products of the first group are the thinnest, their thickness is less than 0.1 mm. The ninth group includes products whose cross-sectional size is more than 8 mm. Products according to GOST are manufactured in round, square, multi-faceted and shaped profiles.

The final treatment provides the required mechanical properties. To strengthen the mechanical strength and durability, the products are thermally treated: hardened, annealed and stabilized.

Based on the type of surface, products are divided into coated, unfinished and finished. Zinc, copper, aluminum and brass are used as steel coatings. For finishing, the surface is ground, polished or etched.

Types by purpose and area of ​​application:

1. General purpose;
2. For the production of meshes;
3. For reinforcing reinforced concrete structures;
4. Ropeway;
5. Welding;
6. String;
7. Spring;
8. Structural;
9. For air communications;
10. For wires and cables;
11. Linking;
12. Printing;
13. Needle room.

Depending on the purpose and required performance characteristics, products are made from steel of various types and grades. General purpose products, as well as binding products and those used for reinforcing reinforced concrete products, are made from low-carbon steel.

For the production of springs, wire cores, spokes and ropes, carbon, alloy and high-alloy steels are used. For some structural types, special requirements are put forward for steel in terms of the content of carbon, chromium, nickel and other chemical elements.

Steel wire according to GOST 3281–74

Round and general-purpose products occupy leading positions in popularity and breadth of application. Low-carbon steel wire is produced from wire rod by cold drawing.

Types and sizes

There are types of products without coating and with zinc coating. Uncoated products are processed at high temperatures. Heat-treated products are produced in light or black colors with a thickness of 0.16 to 10 mm. Zinc-coated wire is produced from 0.2 to 6 mm in thickness.

There are two classes of coverage. Class 2 zinc coating is denser and thicker than Class 1 coating for products of the same thickness. 1C and 2C - this is how they designate products with first and second class coatings.

Heat-treated products are designated by the letter O. Light heat-treated products are OS, and black products are O.Ch. Products without heat treatment are divided into two groups based on their mechanical properties. The strength of Group II products is higher than that of Group I for the same section size.

Labeling and packaging

Heat-treated steel black wire with a cross-section of 0.85 mm is designated: Wire 0.85 - O - Ch - GOST 3281–74.

Thermally untreated wire with a cross section of 1.4 mm of the second group with a zinc coating of the second class is designated: Wire 1.4 - II - 2C - GOST 3281–74.

Wire is produced in skeins and on spools. Winding is carried out without tangling the turns, laying down successive rows that ensure free unwinding. A spool is allowed up to three segments, but a skein must contain only one segment.

Products are supplied in reels, skeins or coils. Skeins of only one batch can be knitted into coils. Each batch is provided with a label indicating the symbol according to GOST, the name of the manufacturer and the technical control acceptance mark.

Skeins with a cross-section of up to 0.5 mm are packed in oiled paper and placed in boxes. Wire with a thickness of 0.5 to 1.0 mm is packed in paper and plastic film. Coils and coils of wire with a cross-section of more than 1.0 mm can be supplied without packaging.

Areas of use

Heat-treated steel wire GOST 3282–74 is used:

1. As a binding material for bundling logs, boards, bales of cotton, waste paper and garbage.
2. For linking reinforcement in reinforced concrete production and construction.
3. When attaching thermal insulation to pipelines.
4. For making artificial flowers, Christmas trees and wreaths.
5. In the production of woven mesh.

Thermally untreated low-carbon steel wire GOST 3282 with and without zinc coating is used:

1. In the production of paper clips and staples.
2. For making nails.
3. In the production of woven mesh, including Rabitz mesh.
4. For fastening wires of communication lines.
5. When installing grounding.
6. For making metal hangers for clothes, handles for buckets, rings for key rings.
7. In the manufacture of jewelry and decor from beads, ornamental stones, seed beads.

Source: https://tokar.guru/metally/stal/opisanie-i-harakteristiki-stalnoy-provoloki-po-gost-3282-74.html

Welding wire for semi-automatic machines: types and necessary information

In the modern world, there is not a single industrial enterprise that does not use electric arc welding in its production activities. Thanks to this factor, the domestic market for semi-automatic devices is constantly growing and actively developing.

Today it is represented by a wide range of technical means, specific devices and consumables, the most popular of which is welding wire for semi-automatic machines. This important component must match its characteristics as closely as possible to the properties of the metal from which the parts being connected are made. Therefore, a large number of filler products have been developed that are most suitable for a certain type of work.

Types of wire

Welding wire is an indispensable element for successful work operations in various industries and utilities. With its help, several metal segments are connected into a solid structure.

The features of this filler material include ease of use and excellent quality of work performed. Proper selection of wire not only improves the reliability of the weld, but also significantly increases productivity.

Wire for semi-automatic machines is usually supplied in coils, coils and coils. The weight of the first type of packaging sometimes reaches 1.3 tons. The weight of the second type of container can vary from 15 to 120 kilograms. The mass indicators of the third form of packaging range from 5 to 18 kilograms.

Often the wire is placed in boxes or plastic bags. If the product does not have packaging, then before use the wire is dried at a temperature of 200°C.

Powder

This wire is a hollow object made of metal, the free space of which is filled with powder and flux. These materials help protect the seam from exposure to oxygen and harmful substances formed during the welding process.

An important factor here is also ensuring the safety of the respiratory system of the specialist performing technological work.

The use of special additives in welding wire facilitates ignition of the arc and helps reduce metal spattering, which has the most favorable effect on the formation of a high-quality seam. The arc burns in a flux medium, which allows you to protect the area of ​​the welded area from the negative influence of the environment.

For work using flux-cored wire, heavy gas cylinders are not required, which are associated with many hassles: storage, refilling and possible leakage.

Copper-plated

Copper-plated wire is a product designed to work with carbon and low-carbon steels. It is coated with a special copper compound and is used for welding objects in a protective gas environment.

This wire allows you to perform a strong and high-quality connection of products, which is distinguished by a neat and even seam.

These products are effectively used in such areas as:

• Construction production;
• Automotive industry;
• Aircraft and shipbuilding.

It has high deposition rates and is indispensable when performing the following procedures:

• Forming a bead on the welding seam;
• Filling the gap in the middle of the edges of the connected structure.

The wire is characterized by a stable chemical composition, good strength properties and low cost.

Alloyed

This type of wire is used as a filler component for manual and semi-automatic welding. Products come in the following types:

• Highly alloyed - contain a large number of additives;
• Low alloyed - have a small amount of additives;
• Carbonaceous - include more than 0.2% carbon elements.

Due to the fact that one of the functions of the wire is the restoration of alloying compounds in the metal, it is distinguished by a high level of ductility and endurance to deformation, and also has excellent resistance to corrosion.

The wire is used mainly for connecting massive parts and large-diameter pipes. It allows you to create high-quality sealed seams and is capable of working in several positions.

Flux Welding Wire

Flux-cored wire has a high degree of melting, allowing successful welding operations with refractory materials. The parts are connected without splashing metal particles, and the crust formed during the welding process can reliably protect the arc and the material from the effects of the external environment. Thanks to these factors, an even and dense seam is created, characterized by uniformity and high strength. And the slag crusts formed on it are very easily removed.

The high level of productivity during surfacing and the absence of metal spatter are the important factors that make this material so popular. This type of wire is harmless to human health, it can be purchased at most hardware stores, and it has a fairly low price.

Welding wire for stainless steel

This type of welding material is intended for joining parts made of stainless steel. It allows you to protect the weld area from the formation of corrosion and components such as carbon, manganese, phosphorus, nitrogen and chromium help it in this.

The wire is produced using steel drawing technology. Depending on the nature of the processing, it can be:

• Solid;
• Soft;
• Thermal.

It is recommended to use wire with structural characteristics identical to the parts being joined, since in this case the strength of the seam will be the highest. The cost of the product today is very significant and averages about $15 per kilogram.

When carrying out work, it is necessary to configure parameters such as voltage and pulse feed of material as accurately as possible in the semi-automatic machine, which will significantly save resources. Stainless steel welding wire is widely used in the automotive industry, food industry and medical devices.

Aluminum Welding Wire

This type of wire is designed for welding aluminum and its alloys. The product has good strength, excellent corrosion resistance and a good degree of ductility. It is made of aluminum in combination with components such as manganese, silicon and magnesium.

Welding activities using wire are carried out in an environment of protective gases (argon, helium) using an argon-arc apparatus. An important factor when carrying out work is the timely use of aluminum material, since after opening the package the wire is subject to rapid oxidation. And this deteriorates the quality of the material and negatively affects the quality of welding operations.

Particular care should be taken when performing work in areas with high humidity. Aluminum wire is used in the food industry, light industry, shipbuilding and oil production.

Marking

The basic requirements regulating all issues of production of wire for welding work are presented by GOST 2246-70 . Today, about 80 varieties of this type of product are manufactured.

And in order to understand what a particular type of product is, it is assigned a certain label, which helps to understand the composition of the product and its characteristics.

A good example is the popular welding wire sv08g2s .

Its decoding is represented by the following values:

• The combination of the letters “st” indicates that this product refers to welding wire;
• The combination of numbers “08” indicates the amount of carbon (in hundredths) contained in the product;
• The letter “g” emphasizes the presence of manganese in the wire;
• The number “2” is the volume of manganese in the element;
• The letter “c” indicates the presence of silicon in the wire, but if there is no number after the letter designation, this means that the product contains less than 1%, but more than 0.5%.

Based on the markings stated above, we can say that the presented product is an alloyed low-carbon wire, which contains additives such as silicon and manganese.

The diameter of the wire

Wire for semi-automatic devices comes in the following diameters:

• 0.6 mm;
• 0.8 mm;
• 1.0 mm;
• 1.2 mm;
• 1.6 mm.

Such dimensional indicators allow us to fully satisfy the needs of professional welders. For highly specialized purposes, products with a diameter from 3.0 to 6.0 millimeters are perfect.

The required wire size is selected in accordance with the characteristics of the welding current and the thickness of the elements being connected.

The selection criteria also include:

• Chemical composition of the material;
• The size of the surfacing area;
• Number of passes to form a seam.

It should be noted that when choosing a wire, it is important to pay attention to such indicators of the metal as impact strength and tensile strength.

Popular brands

The most popular brands of welding wire presented on the domestic market are:

• Sv-08GSMT. This type of product belongs to copper materials and is used in welding operations using automatic and semi-automatic machines. The wire works well with carbon metals and alloys that contain a low percentage of alloying components. It is characterized by a high level of resistance to tensile loads. This parameter is in the range of 1000-1300 MPa. This grade of wire is widely used for joining thin-walled parts operating under high pressure. Welding is carried out in an environment of protective gases (argon and carbon dioxide);
• Sv-06Х19Н9Т. This grade of wire is intended for working with stainless steel in a protective gas environment. Thanks to the content of elements such as chromium, manganese and nickel, it has good corrosion resistance. Used in the production of food industry products;
• PP2DS. This is a representative of cored wire. This brand allows operations to be carried out in strong winds, which gas shielded welding cannot do. The wire is intended for connecting parts made of steel (carbon and low-alloy), cast iron and non-ferrous metals. Used in shipbuilding and oil industry;
• OK Autrod 19.40 . This wire is from a foreign manufacturer ESAB. It is used for working with rolled aluminum bronzes and for surfacing anti-corrosion layers on metal parts. Its yield strength is 175 MPa, and its strength reaches 400 MPa. Welding operations are carried out in pure argon. This product is used in the chemical industry and automotive industry.

Conclusion

To facilitate the welding process and increase the efficiency of operations when joining refractory metals and alloys, modern filler materials are widely used. One of the most popular today is welding wire for semi-automatic machines. It allows you to effectively carry out all work using an inverter, without using fragile electrodes.

Automated welding using filler wire helps create a flexible, strong and reliable weld. To achieve the best result, it is necessary to select a type of additive that can most accurately match the composition of the metal being welded. If difficulties arise in resolving these issues, you will need to seek help from professionals who will be able to draw up a list of necessary recommendations.

Source: https://voltobzor.ru/svarka/svarochnaya-provoloka-dlya-poluavtomatov

Wire

Wire is a long metal product that is used in many areas of electrical engineering, mechanical engineering and construction:

1. In construction, steel wire is mainly used for constructing barriers, making meshes, and reinforcing structures.

2. In mechanical engineering they are used for the production of wire ropes, nails, springs, welding electrodes, hardware, and reinforcement of structures (including metal cord).

3. In electrical engineering - for creating heating elements, rheostats, current-carrying cables.

Since wire is considered a hardware product, almost all hardware factories produce it in large quantities. At the moment, the use of wire can be found in any area - in households and everyday life, in construction and industry. It is widely used for the manufacture of fences, chain-link mesh, welded mesh, electrodes, nails and springs.

It is an indispensable element in ropes and cables, rheostats, electrical wires and various heating devices. In addition, it is widely used for strengthening reinforced concrete structures as reinforcement

The diameter of the wire, depending on the future purpose of the rolled metal product, can vary from 0.3 to 6.3 mm.

In addition, this material can be produced galvanized, or without coating at all (this parameter depends on various operating conditions).

Galvanized wire

Galvanized wire is a steel wire that undergoes a galvanizing operation, it involves the step of passing the wire through molten zinc. As a result of applying a zinc coating, the wire acquires anti-corrosion properties.

It is thanks to this coating that galvanized wire finds wider areas of use. Such wire produces excellent hardware that can withstand prolonged aggressive exposure in various adverse conditions. In addition, zinc increases the service life of the wire by an order of magnitude.

At the same time, galvanized wire acquires and provides high-quality aesthetic properties of the product.

Knitting wire

Tie wire is a general purpose heat treated steel wire. The main purpose of such wire is to link materials and products. Due to its mechanical properties, annealed soft tying wire has found a wide range of applications in the construction industry for various structures and tying reinforcement. Knitting wire has a low cost, which makes its price low.

Source: http://www.kmzsibmash.ru/provoloka

Welding wire

Many types of fusion welding use a special wire called a welding wire. It is used in the manufacture of electrodes in the most common types of welding - manual arc, gas and using semi-automatic and automatic machines of all types.

It is a product of a certain length, made of metal, having a small cross-section in relation to the length. To make the right choice of welding wire brand, you need to know the basic criteria for its selection. The strength and quality of the connection obtained by different types of welding depends on this.

Classification

The characteristics by which welding wire is classified are as follows:

• purpose;
• type of surface;
• structure;
• chem. composition.

Depending on their purpose, products can be general or special purpose. Special-purpose wire is intended to perform specific work - underwater welding, welding of reinforcement, tank welding, etc. This wire has a chemical composition that simplifies the above work and helps obtain a welded joint of the highest quality.

General purpose wire is intended for welding, used in surfacing work and in the manufacture of various types of electrodes (the letter E is present in the marking).

Depending on the type of surface, the wire is produced non-copper-plated and copper-plated (the letter O is present in the marking). Copper-plated wire is used for welding structures and products made of carbon or low-alloy steel. Its purpose is to create anti-corrosion protection for the seam, as well as to promote stability of the arc. This is especially true when carrying out gas welding.

According to the structure, the wire can be solid, flux-cored and activated. The composition of the steel from which the wire is made is of great importance when choosing it for welding a specific grade of metal and depends on the symbol - marking.

Wire designation

Chem. The composition of the steel grades from which the wire is made is specified in GOST 2246-70 and according to it there are 6 grades made from steel grades with low carbon content, 30 grades from alloy steel and 41 grades from high-alloy steel.

The wire is considered low-carbon if its total content of alloying elements is less than 2.5%, alloyed if the total content of these elements is in the range from 2.5 to 10%, and high-alloyed - more than 10%.

The wire has a symbol that indicates the quantitative content of various elements in its composition.

The marking consists of numbers and letters, where the numbers are the number of elements that make up the wire in %, and the letters are the name of the chemical element. Welding wire may contain the following elements:

• A (N) – nitrogen;
• B (Nb) – niobium;
• B (W) - tungsten;
• D (Cu) – copper;
• M (Mo) - molybdenum;
• H (Ni) – nickel;
• C (Si) - silicon;
• T (Ti) - titanium;
• Yu (Al) - aluminum;
• F (V) - vanadium;
• X (Cr) – chromium;
• Z (Zr) – zirconium.

A number must be placed before the marking.
After it, St. is written with a hyphen. The number indicates the Ø of the wire in mm, and St. indicates that it is intended for welding. After St there are numbers indicating the amount of carbon (in hundredths of a percent). At the end of the marking there may be letters:

• A – the content of phosphorus (P) and sulfur (S) in steel is reduced;
• AA - the wire is made of metal, which has a minimum amount of P and S, i.e. the metal is purified as much as possible from these impurities.

Sulfur and phosphorus negatively affect weldability, therefore, when welding critical structures, be sure to choose wire grades with a reduced amount of them.

An example of a symbol for the most used grade of wire when carrying out welding work and its explanation:

3-Sv08G2S

Where:

• 3 – diameter in mm;
• Sv – welding wire;
• 08 – contains 0.08% carbon;
• G2 – contains 2% manganese;
• C – contains up to 1% silicon.

Sv08G2S is also used for manual arc welding, when performing surfacing work and when performing work using semi-automatic and automatic machines. It is used to weld critical pressure vessels, structures made of various steels, pipelines, boilers, etc. Solid diameter wire is available in Ø from 0.3 to 12 mm.

Cored wire

Such a wire is a hollow metal tube filled with metal powder and flux, the purpose of which in the wire is to protect:

• seam from harmful gases released during welding;
• seam from the harmful effects of oxygen;
• welder's respiratory system.

Adding activating additives to the welding wire makes it easier to ignite the welding arc, reduces metal spatter and promotes the formation of an ideal seam. The seam during welding with flux-cored wire does not require additional protection. That is why it is often called flux or self-defense. The arc burns in a flux sheath, which helps protect the seam from harmful environmental influences.

The basic requirements for flux-cored welding wire are as follows:

• should facilitate the initiation of the welding arc;
• the arc must burn stably during the welding process without breaking;
• should melt evenly;
• should not allow metal to splash;
• promote easy separation of slag after welding;
• should form a seam, which in terms of strength characteristics should not be inferior to the strength of the metal being welded.

Welding wire for semi-automatic and automatic machines is produced with Ø from 0.6 to 6 mm and is wound on cassettes, reels or frames. This can significantly increase the productivity of the welder, reduce the cost of welding work and improve the quality of the formed seam. In addition, the function of the welding wire includes protection against corrosion in the seam during operation.

The diameter of the flux-cored wire is selected taking into account the following factors:

• grade of metal being welded (the chemical composition should be as close as possible to the grade of steel that will be welded);
• thickness;
• welding current strength;
• position of the metal during the welding process (bottom, ceiling, vertical, horizontal, inclined);
• cutting edges before welding.

Flux-cored wire has another advantage - welding work can be carried out outdoors in strong winds, which allows welding work to be carried out at the location where it is carried out.

The technology of welding with self-shielding wire is no different from the technology of welding performed using solid wire.

Activated wire

For welding in a gas environment, a special wire is used, which is called activated. It contains salts of alkaline earth and alkali metals, which are easily ionized.

The wire sheath is made of Sv08G2S steel, which is thicker than flux-cored wire, and inside there is the specified filler powder in an amount not exceeding 7% of the weight of the sheath. This allows you to stabilize the arc and form a high-quality seam during welding.

Other types of welding wires

For welding most non-ferrous metals and their alloys, welding wires of various diameters made of aluminum, copper and brass are used.

For aluminum wire and wire made of aluminum alloys there is a domestic GOST 7871-75, which specifies its dimensions (from 0.8 to 12.5 mm) and chemical. compound. GOST 16130-72 applies to wire made of copper and copper-based alloys. Copper wire is available in Ø from 0.8 to 8 mm.

The diameters of welding wire produced in accordance with GOST in our country differ from foreign analogues.

And since automatic and semi-automatic welding machines are mostly foreign-made, there is a need to know analogues of wire produced abroad.

For example, an analogue of the most used brand Sv08G2S is copper-plated wire ER-70S-6, manufactured by the well-known manufacturer FARINA from China. Supplied with row wound spools. Foreign wire is marked according to AWS standards.

Welding wire can be supplied:

• in coils (Ø 830 ÷ 850 mm, height 700 ÷ 1000 mm, weight up to 1.3 t);
• skeins (Ø 220 ÷ 730 mm, thickness 60 ÷ 180 mm, weight 15 ÷ 120 kg);
• on cassettes and reels weighing 5, 15 and 18 kg.

Coils, skeins, cassettes and reels can be supplied unpackaged and packed in polyethylene or special boxes. If the wire is supplied unpackaged, then before use it must be dried at a temperature of at least 200 0C for half an hour

Source: http://gredx.ru/articles/svarochnaya-provoloka

Filler wire: what it is, types and markings, where and how it is used

In addition to the electrodes, the working element in welding is the filler wire. It is used in arc welding or gas shielded welding.

The equipment used is automatic or semi-automatic models. This wire is supplied in reels and varies in characteristics and diameter.

This article will examine in detail what filler wire is, its types and what its marking means.

Welding wire refers to different types of rods made of metal. It is sold in reels that are placed in mechanisms that feed the wire into the welding machine.

Feeding occurs either automatically or at a speed set by the welder. Sometimes the bobbin is unwinded manually, without the use of machinery.

The material of the rods varies. This is due to the fact that the metal of the consumable element must match the metal of the part being welded. Steel should be welded with a steel rod, copper with a copper rod.

Therefore, you can find filler wire of virtually all possible options and alloys.

Types of filler wires

This filler material is divided into three types, according to which it can be solid, powder (flux) and activated.

A solid bar is pure metal without any additional impurities, inclusions or substances. It is easy to produce and use, and therefore quite common. It is used when working in a protective gas such as argon.

The powder type is used in gasless welding. But welding metals without the protection of special gases is complicated by exposure to oxygen, which deteriorates the quality of the weld. Why doesn't it work here?

Because the flux cored rod is designed in a special way. Although it looks like a solid model, it is hollow inside. Essentially, it is a tube.

This tube is filled with special substances in powder form that can replace the effects of shielding gas. Hollow wire is used at heights and in other conditions where it is impossible to deliver gas equipment.

Activated filler wires are the result of a fusion of solid and hollow wire technologies. He took the best parameters from solid and powder models, combining them in himself: the integrity of a solid look and the protective characteristics of a hollow one.

The result was a solid wire coated with an even layer of inclusions that protected it from the harmful effects of air.

Nuances of choice

Understanding the model types of welding rods, you need to know that each type has its own purpose. That is, each filler wire is suitable for a specific type of welding job.

Therefore, before choosing any option, you need to find out what kind of metal processing it will be used for. There is no need to take rods intended for welding for cutting.

In addition to being divided by application, there are versions of different diameters. The diameter indicator depends on the thickness of the part that will be welded. Larger wires are used for thick parts, smaller ones for thin ones.

There are sizes from 0.8 to 12 mm. Three-millimeter rods are most often used.

As already mentioned, this filler material is used for processing different types of metals. Since the rod always corresponds to the metal of the part, you also need to pay attention to this parameter.

You cannot use brass wire for a steel part, or steel wire for aluminum. In some cases this simply will not work, in others the quality of the seam will suffer.

The composition of the filler element plays an important role. There are models with different fillings and alloying. To choose the right model, you need to study these indicators and compare them with those required for the part being welded.

Markings

Marking refers to the order of numbers and/or letters that carry the characteristics and purpose of the item. Welding wire has a number of markings that apply to all models, types or uses.

The complete list of marking classification of welding wires contains more than seventy items. Therefore, only the decoding principle and several popular brands will be described here.

Analysis of the decoding of the marking will be carried out using the example of the Sv-06X19N9T model. It is used in arc welding and is quite common.

The initial letters indicate the purpose of the welding material. In this case, these are the letters “St”. Deciphering this indicator means that the material is intended for welding work.

It cannot be used for cutting or other metal processing. In addition to the “st” marking, there is “np” - surfacing wire, as well as “pp” - flux-cored wire.

After the type of processing for which the rod is intended, there is a number indicating the carbon content. This parameter is indicated as a percentage, in relation to the total mass. The model being disassembled indicates 06, which stands for 0.06 percent.

Next, other metals included in the rod and their percentage are indicated. Here we see nineteen percent chromium, nine percent nickel, and titanium.

Titanium, designated by the letter T, does not carry a percentage indicator next to it. This means that in the total composition of the material its inclusion is less than one percent, and in such cases their exact content is not indicated.

As for the other letters found in the markings, they mean other metals that are included in one or another version of the filler material. It’s difficult to study them all, but the main ones will be given here:

• M – molybdenum
• C – silicon
• F – vanadium
• C – zirconium
• D – copper
• G – manganese
• Yu – aluminum.

As you can see, they are not always the first letter of the metal that is marked, so it is better to learn the letter markings by heart.

Popular models

Among the variety of model versions, it is quite difficult for a novice welder to navigate. Common types of welding wires will be given here as a basis for study.

One of these models is Sv-10G1SN - a welding wire with a ten percent inclusion of carbon, one percent inclusion of manganese, and a silicon and nickel content of less than one percent.

It is used when welding in a protective gas environment. Can be applied to low alloy steel. Quite widely used in various industrial fields.

Versions Sv-10GA (welding, 0.1% carbon, inclusion of manganese and nitrogen less than 1%), Sv08A (welding, 0.08% carbon, nitrogen content less than 1%) and Sv08 (welding, carbon content 0.08%) used for argon arc and gas welding.

Suitable for welding water pipes and other low-carbon metals.

Models designed for low-alloy types of steel:

• Sv08HN2M (welding, 0.08% carbon, 2 percent nickel, less than percent chromium, molybdenum),
• Sv08KhMFA (welding, 0.08% carbon, chromium, molybdenum, vanadium, nitrogen content - less than 1%),
• Sv08GS (welding, 0.08% carbon, manganese, silicon content - less than 1%).
• This list also includes the Sv-06X19N9T disassembled in the example.
• For high alloy types of metal the following are used:
• Sv-08N50 (0.08% carbon, 50% nickel)
• Sv30Х25Н16Г7 (0.3% carbon, 25% chromium, 16% nickel, 7% manganese)
• SV07Х19Н10Б (0.07% carbon, 19% chromium, 10% nickel, less than 1% niobium)
• Sv10Kh17T (0.1% carbon, 17% chromium, less than 1% titanium)
• Sv08Х20Н9Г7Т (0.08% carbon, 20% chromium, 9% nickel, 7% manganese, less than 1% titanium)

All types of barbed wire - types, scope of application, production and installation features

Today, barbed wire is one of the cheapest, but at the same time reliable means of protection. There are a variety of wire structures, some examples of barbed wire can be seen in the image, but the purpose is the same - to protect the territory from the invasion of unwanted guests.

A fence made of barbed wire is a lightweight and reliable construction with fairly sharp spikes. Today, barbed wire structures are in intense demand, and therefore are actively used to protect various properties.

Purpose

Barbed wire represents a serious obstacle to unnoticed entry into your territory, as it significantly delays an intruder. The uninvited guest will need to make a lot of effort to disentangle clothes and equipment from the iron nets.

In addition, the “thorn” can cause equal wounds of varying degrees of severity. Even a well-equipped criminal will spend a lot of time overcoming a wire barrier, which will significantly increase the patrol's chances of detecting an ill-wisher.

Types of protective wire products

Today, many different types of wire fencing are produced. It is simply impossible to keep track of all the new products, so this article presents only the main modifications.

Tape. It is a metal cord entwined with a reinforced tape with sharp cutting edges. The cutting part is made in the form of a tip, which can damage various types of materials, including soft human tissue. In practice, it is used as part of protective structures, in particular on the main frame and supports.

Classic. The image shows single-core barbed wire, which is a standard single-core structure made of steel, which is armed with metal spikes along the entire plane. In practice, it is possible to build independent fencing structures from this type of wire.

ASCL. Reinforced twisted tape. It is a metal core made of wire with a spike strip wound onto it. The next stage in the development of protective wire products is AKL (reinforced razor tape)

Application of traditional barbed wire

This type of wire was used two centuries ago for fencing structures for livestock and military fortifications. Nowadays, this product is used by owners of private buildings.

The main advantages of barbed wire are its low cost and lightness of the material. Therefore, it is used in the design of fencing; the image shows options for using barbed wire for fencing.

Its installation is also not very difficult. At a distance of no more than three meters, vertical supports are dug into the ground, and the wire itself is stretched between them.

To increase the efficiency of the structure, it is recommended to additionally tension the wire across the main line. Barbed thread can also be used to complement already built protective structures. In this case, the wire is installed on the top of the fence.

Application of a tape-type product (ACL)

The previous type of product is mostly used in everyday life, and for more serious buildings, structures made of reinforced tape are used - such as Gyurza, Egoza.

Limits of applicability of this type:

• Fences made in the form of a flat spiral
• Mesh with diamond-shaped cells
• Fences in the shape of a volumetric spiral

To install these structures, you need professional equipment: a grinding machine, reinforcing shears and other special devices.

Features of this design, in comparison with the classic “thorn”: higher cost, high performance characteristics, complexity of installation. Due to the above qualities, this product is used only for additional reinforcement of the turns of finished structures

Application of twisted tape (ACSL)

The main function of the ACSL is to protect the upper contour of fencing structures. In addition, it finds application in barriers that are untouchable for animals. The product is simply laid out on the surface of the earth in volumetric waves. For installation, special ammunition and professional equipment are required.

The main features of this product: high strength, resistance to corrosion, lack of reaction to temperature changes. It is used in the national economy, in the construction of fortifications and for the protection of private objects.

DIY wire fencing

Designing a barbed wire fence begins with choosing the type of structure; the installation of the product itself will depend on this. Next, you need to determine whether it will be an independent structure or an additional one to an already finished structure.

For self-fencing, you must have support posts, between which the wire will be attached. Racks are chosen from wood, metal or concrete. Installation occurs by implanting posts into the ground at a certain distance. The gap between the pillars should not exceed 2.5-3 meters.

If you are planning to construct a fence yourself, you need a list of special tools, as well as protective gloves and thick clothing to protect yourself from injury.

To fasten the wire, special brackets are used, which are attached to the support posts. There are brackets of various shapes (Y-shaped, U-shaped, L-shaped) so that installation can be carried out in various convenient ways.

Installation algorithm:

• Territory marking
• Installation of support posts
• Installing brackets using bolts or welding
• Installing a barbed spiral on the brackets on top, using special brackets
• Pulling a double string through the entire length of the helix
• Alignment of the spiral and its fastening using special twists
• Installing barbed wire between posts at a distance of 15-20 cm
• Connecting the wires together with mounting brackets.

To strengthen the structure, the wire is connected to an electric current source. But for this you need to hang a warning sign.

Barbed wire fencing is perhaps the best way to protect private property. The design does not require high costs and does not cause great difficulties in installation and operation. An excellent solution to protect your property from unwanted attacks.

Photo of barbed wire

We also recommend viewing:

Source: https://materialexpert.ru/vse-vidy-kolyuchej-provoloki/

Knitting wire: types, characteristics, features of production and application

24.07.2019

Knitting wire has become widespread in various fields of construction. It is a long product. Low carbon steel is used for its manufacture. There are several types of products, differing in cross-section. The most popular wire is 1.2 mm.

Production features and characteristics

Knitting wire undergoes several heat treatment operations during the production process. This gives the finished products high strength and ductility. Most often it is used in construction for connecting reinforcement frames, in the trade sector - for packaging products, in the manufacture of ropes, and in the creation of landscape design elements. Rolled steel is in demand in the production of enclosing structures, cages and enclosures, gabions, etc.

The main raw material for producing binding wire is steel, containing up to 0.25% carbon. A production technology such as cold drawing is used. After pressing the wire rod through holes of the required diameter, the surface of the products is deformed. To restore it, an annealing operation is performed. Thanks to it, the stress in the metal is significantly reduced. It acquires many positive qualities:

•  high bending strength;
• plastic;
• ability to withstand various external negative factors.

Knitting wire 1.2 mm is characterized by ease of processing, which allows it to be used to create products of complex shapes. It does not contain microcracks or deformations, and has a uniform thickness along the entire length.

Types of knitting wire and areas of use

Products differ in the method of heat treatment into light and dark. They have standard characteristics, but differ in application features. Wire that has been annealed in furnaces with an inert gas environment has a clean surface without traces of scale. It is marked with the letter “C” and is highly decorative. You can work with it without gloves.

Dark products are obtained by annealing in air.
They are less expensive, but the rental leaves traces of scale. To avoid staining your hands and other objects, you need to work with the wire carefully while wearing gloves. Wire is available with and without coating. On sale you can find products in skeins or coils. Products used to bind reinforcement cages are often sold in sections.

They are completely ready to use thanks to the presence of rings around the edges.

Zinc is usually used as a decorative and protective coating. Manufacturers use various galvanizing technologies: cold, galvanic and hot. The latter involves immersing the wire in a bath of liquid metal. It forms a thick and durable layer on products.

The products are durable, but have low environmental friendliness. It is not used for interior work. The galvanic technique is characterized by the formation of a less thick coating. Cold technology is used to process small areas.

Here, compositions with a very high zinc content are used, reaching 96%.

There is a special type of product with an additional polymer coating. Such a knitting wire is obtained through the process of applying powder dye and subsequent polymerization. Products are available in different shades. Their main area of ​​application is weaving fencing structures and decorative gabions for landscape design.

Knitting wire: types, characteristics, features of production and application Link to main publication

Source: https://viascio.ru/materialy/metall/vyazalnaya-provoloka-vidy-harakteristiki

Low-carbon steel wire: GOST, General purpose, galvanized

Steel wire is one of the types of long rolled metal products. It is used in various industries. Also, this metal product can be of different types, diameters, shapes, and often it differs in manufacturing methods.

Often any type of steel product is galvanized. This allows you to increase the shelf life of the product and prevent rusting of the material.

Coil of steel wire

For its production, the following types of steel are often used: carbon or alloy. carbon in the wire can be low, medium and high. As for the process of manufacturing a metal product itself, it may or may not undergo heat treatment.

Areas of application of steel wire

For many years, the leader among consumers has been low-carbon steel wire (GOST 3282-74), which is used in various industrial and household fields. Thus, it is very often used in electrical engineering, when it is necessary to build a grounding loop or support for telephony or power lines. Ropes for berths or marine vessels are also made from this material.

To fasten any parts in any production or household, this product made of galvanized steel is also used (GOST 3282-74). Most often, the material finds its purpose during the construction of chain-link mesh, as well as for the manufacture of nails, barbed wire, and welded mesh.

Welded galvanized steel wire mesh

For tying together rebar, logging and other items, wire has found its purpose in the construction industry. Galvanized wire is also widely used in agriculture, medicine and other industries.

One cannot fail to mention the use of galvanized steel products in hardware production.
It may be noted that the material is of general purpose and application. to menu

Types and range of steel wire

There are many varieties of galvanized steel wire.

The main ones are:

• stainless – made of a specialized heat-resistant alloy that is not subject to corrosive processes, most often used in hardware production;
• welding - comes in a variety of diameters 0.5-8 mm, it is often used during electric arc welding;
• reinforcement – ​​used for additional strengthening of various kinds of reinforced concrete structures that are under high pressure or without tension. Thanks to the sections that exist in the steel material, good adhesion to the concrete surface occurs during reinforcement;
• spring (cold drawn) - this analogue is intended for the manufacture of springs, which are made using the cold winding technique, without further heat treatment;
• rope - for the production of marine and other ropes, best suited for weaving;
• cable – for the construction of armored protective shells for cables and wires;
• knitting - made from low-carbon (GOST 3282-74) steel, has high strength and ductility, most often used in construction and agriculture, for example, for tying up weaving plants, and is also considered a general-purpose wire.

to menu

GOST standards for steel wire

According to GOST, the groups of steel materials are the same as we described above. We will describe which GOST of this or that galvanized steel assistant below.

Table of product conformity characteristics GOST 3282-74

So:

data-ad-client=»ca-pub-8514915293567855″
data-ad-slot=»1955705077″>

1. General purpose low-carbon steel GOST 3282-74.
2. Steel welding wire GOST 2246-70.
3. Cold-drawn low-carbon steel wire GOST 6727-80.
4. Rope wire GOST 7372-79.
5. Spring steel carbon GOST 9389-75.
6. Galvanized barbed wire GOST 285-69.

Source: https://armaturniy.ru/setka/provoloka/stalnaya-nizkouglerodistaya.html

steel welding wire

page » steel welding wire

This section discusses steel welding wire.

For blacksmiths, forges, industries and individuals (homemade workers, self-taught people and enthusiasts).

See below for useful information to help you choose.

Choose brands from the list below the article.

Copper-plated welding wire SV08G2S-O ChZSM. Photo Welding Technologies

Steel wire occupies an impressive niche in the list of materials used in industry and in everyday life . Welding, as one of the types, has the properties of effective use in welding technologies.

Scope, purpose

Steel material in the form of wire has found application in automatic and semi-automatic welding . For solid wire, welding is performed in a shielding gas atmosphere (!materials for argon arc welding are in great demand).

In cases where the use of a gas cylinder is difficult, the consumable material is made in the form of steel cored wire. Tubular wire is filled inside with a special powder (flux).

The flux contains components that protect the weld from the external environment.

Copper-plated steel welding wire (1 kg; diameter 0.8 mm) Elitech. Photo VseInstruments.ru

Steel welding wire serves as a blank for the production of piece electrodes . It is used as an additive for surfacing surfaces in order to give them the necessary mechanical (wear resistance, corrosion resistance and others) properties.

Symbols and markings

Solid wire for welding or surfacing is marked in accordance with GOST 2246-70. The designation includes the standard size, method of application, chemical composition, information about manufacturing technology, indicates the possibility of manufacturing electrodes, as well as whether they belong to a wire with a copper-plated surface.

Marking of flux-cored steel wire is based on GOST 26271-84 . The designation of welding and surfacing wire differs.

The designation of welding flux-cored wire does not specify the detailed chemical composition; only the content of carbon, phosphorus and sulfur is specified. The standard size, whether the wire is flux-cored, mechanical characteristics (yield strength, impact strength), and permissible spatial positions during welding operations are indicated. The designation determines the type of seam protection - self-protective or gas-protective.

Copper-coated wire SV-08G2S-O (18 kg; 1.6 mm) CEDAR. Photo VseInstruments.ru

Flux-cored wire for surfacing, in addition to indicating the category of flux-cored wire and the technology of use, the chemical composition of the powder material must be given. Together with the standard size of the wire, the conditions of use are regulated: with gas or other protection, with submerged arc surfacing or in any of the options. In some cases, it is useful to know the accuracy class for deviations of the nominal diameter size. It is also indicated in the designation.

Kinds

Steel welding wire is divided into the following groups :

• low carbon;
• alloyed;
• highly alloyed.

Low-carbon and alloy wires are produced with a copper-plated surface. Copper plating increases corrosion resistance. The stability of the welding arc is increased by reducing friction when feeding through the tip hole and improving the current-carrying characteristics characteristic of copper.

Copper-coated wire SV-08G2S BARS. Photo VseInstruments.ru

The development of wire drawing technology makes it possible to obtain it with a perfectly clean surface. This is where the name of steel welding wire came from - polished . In terms of its characteristics, it is close to copper-plated and creates a more stable arc than steel with a regular surface. Some high-alloy wires (mostly molybdenum-containing wires) are poorly coated with copper. Such products are made with a polished surface.

Source: https://kovka-svarka.net/provoloki/stalnaia/

Welding wire SV08G2S: nuances in use, rules of application, types of wire - Machine

Copper-plated welding wire SV08G2S ChZSM. Photo Welding Technologies

Welding wire SV08G2S (spelling Sv-08G2S is also acceptable) is one of the most common brands of filler materials. This brand is often called universal, since it is used for welding and surfacing. In addition, it is used in the manufacture of electrodes. Full information is provided below.

Decoding the brand

SV08G2S stands for as follows:

• SV - welding;
• 08 — carbon content, % — 0.08;
• G - presence of manganese in the composition;
• 2 - amount of manganese, in% - 2;
• C - the presence of silicon in the composition, since there is no number after the letter “C”, this means that the silicon content does not exceed one percent.

Reference. Manufacturers produce two modifications of wire: copper-plated and uncoated. The marking of the first variety contains the letter “O”.

Copper-plated welding wire is also in high demand, since its use results in slight wear of copper tips and an increase in conductivity, which ensures arc stability and increases the strength and durability of the weld. It is important not to confuse copper coated steel wire with all copper consumables.

Characteristics

Copper-coated wire SV-08G2S BARS. Photo VseInstruments.ru

Technical characteristics are determined by several parameters depending on the further use of the wire (welding, surfacing or electrode production):

• The tensile strength varies from 882 to 1030 MPa, depending on the diameter of the material. If the wire is used for the production of electrodes, then this figure is reduced by about 10%.
• Heat treatment , the most common method is quenching in oil at a temperature of 880-920 degrees and gradual cooling in air. As a result of this procedure, the wire becomes more elastic , the tensile strength is reduced to 430-450 MPa, which makes it possible to produce electrodes of complex configurations from the material.
• Any surface defects of the material are not allowed, with the exception of dents and scratches formed during drawing. But they should not occupy more than 5% of the surface area.

Mechanical

After manufacturing, the wire must undergo a tensile test . The following tensile strength indicators are allowed (Sv kgf/mm2):

• value Sв for wire with a diameter of up to 1.5 mm. should be in the range from 90 to 135;
• for 1.6 mm. — 90-130 (for surfacing) and 70-100 (for electrodes);
• for 2.0 mm. — 80-120 (for surfacing), 70-100 (for electrodes);
• for wire with a diameter over 2.0 mm. — 70-105 (for surfacing), 65-95 (for electrodes).

also include :

• relative elongation rate - at least 30%;
• yield strength value - from 415 to 440 MPa;
• impact strength indicator: at 40° degrees - 56 J/cm2, at 20° - 69.

Reference. Characteristics of other types: titanium, stainless steel, powder, aluminum, as well as wire grades: VT1-00Sv and PANCH-11 are presented in separate articles.

Chemical composition

Welding wire JULI SV08G2S. Photo Welding Technologies

The chemical composition of materials for welding is determined by GOST 2246–70. In accordance with Gosstandart, the wire contains the following elements:

• carbon (C) - 0.05-0.11;
• silicon (Si) - 0.7-0.95;
• manganese (Mn) - 1.8-2.1;
• chromium (Cr) - no more than 0.2;
• nickel (Ni) - no more than about.25;
• sulfur (S) - no more than 0.025;
• phosphorus (P) - no more than 0.03.

Wire without copper coating may contain copper, no more than 0.25%. GOST allows for a nitrogen content of no more than 0.01.

Alloyed wires containing vanadium, aluminum and other elements are not produced.

Deposition rate indicator

When performing surfacing work, it is important to know the surfacing coefficient of a certain grade of material. This indicator demonstrates the amount of deposited metal formed over a certain period of time - per hour and at a specific value of welding current.

Welding wire SV08G2S has a deposition rate of at least 8.5 g/A*h.

This indicator depends on the composition of the chemical elements of the wire, its type (copper-plated or uncoated), the nature of the current during the work; in the case of alternating current, its polarity is also important. This parameter is fundamental when calculating the consumption of materials for welding.

Requirements

Basic requirements for welding wire:

• the chemical composition of the material must correspond to the composition of the metal from which the parts or elements being welded are made;
• the welding wire must melt at a temperature almost equal to the temperature of the metal, the melting must be uniform;
• The welding wire must not be dirty or oxidized and must not be damaged.

Certification, GOST

The chemical composition and properties of the wire must comply with GOST 2246-70 . Materials for welding undergo mandatory certification and certification by the Welding Association NAKS. Some manufacturers provide certificates on official websites, thereby demonstrating compliance with the standard and high quality of the filler material.

Welding wire Sv-08G2S-O Fubag. Photo VseInstruments.ru

Requirements for delivery conditions

In addition to the requirements for the chemical composition, properties of the wire and packaging, which are presented above, “claims” are also made regarding the conditions of supply of filler materials.

• Finished products are packaged in skeins. If there is permission from the consumer, then the welding wire is supplied in coils or cassettes . Large diameter products are sold in sealed packages without being wound onto reels.
• At the same time, an important requirement is that the wire should not have breaks .
• Winding is done in tightly even rows. The possibility of unwinding or unraveling of the material during transportation must be eliminated.
• The surface of copper-plated products may sometimes have processing residues in the form of soapy grease upon delivery. This, in accordance with GOST requirements, is permissible in small quantities, but the lubricant should not contain sulfur and graphite.

Distinctive features, advantages and disadvantages

Wire ESAB SV-08G2S. Photo 220Volt

Welding wire SV08G2S has the following features that can be considered advantages:

• ensuring a stable welding arc;
• eliminating the possibility of the electrode “sticking”;
• positive mechanical properties, including toughness, high tensile strength
• used in a wide range of welding modes;
• suitable for working with any class of welding machines;
• provides slight splashing of the melt in a gaseous environment;
• allows you to economically use copper tips and re-ignite the arc;
• provides an even, high-quality seam with good edge weldability of the parts being joined, without the presence of pores and foreign inclusions, as well as with a uniform chemical composition;
• low cost;
• absence of copper vapor;
• used for welding in all positions.

There is no information about shortcomings.

Recommendations

When purchasing welding wire, you should remember some rules that will reduce the likelihood of purchasing counterfeit or low-quality products:

• you should purchase materials from manufacturers and suppliers who have certificates that indicate what standards the wire meets and whether it is even genuine;
• It is recommended to buy consumables in large stores; from trusted sellers who are able to provide storage under appropriate conditions.

Assortment, release form, packaging, packaging

Welding wire SV08G2S is available in diameters from 0.3 to 12 mm. The materials are packaged in skeins, the weight of which can reach 30 kg. Copper-clad wire can be formed into coils rectangular in cross-section. Their height is 50-90 mm.

The internal diameter of the wire can vary from 100 to 400 mm, the external diameter - from 175 to 600 mm. Reels and cassettes are another type of packaging, their weight is 5 and 15 kg.

Sealed packages without winding weigh 80 or 250 kg.

Copper-coated wire SV-08G2S-O KEDR, cassette 15 kg. Photo VseInstruments.ru

Analogs

Analogues of SV08G2S include such well-known brands as:

• ER-70-S Fubag;
• ER-49 Bri;
• W10 Weld-Team KFT;
• Novofil G3Si1;
• OK 12.51 ESAB;
• SM-70 HYUNDAI;
• ER 70-6 Prima.

Analogues of SV08G2S-O are ER70S-6 wire, produced by several companies: Prima, DEKA, BARS and others, as well as OK 12.51.

Manufacturers

Several manufacturers, Russian and foreign, produce SV08G2S welding wire:

Where can I buy

• Suppliers and manufacturers of Sv-08G2S wire, as well as other consumables, are collected in a separate section of our website.
• Sections: Welding wire

Source: https://regionvtormet.ru/beton/svarochnaya-provoloka-sv08g2s-nyuansy-v-ispolzovanii-pravila-primeneniya-raznovidnosti-provoloki.html