Calculation of the weight of the binding wire
Calculating the weight of wire may mainly be required in two situations: when organizing the delivery of a large batch or calculating the total weight of a metal structure, and since most suppliers offer it by the meter, you have to do this yourself.
Features of knitting wire
To link individual structural parts or transport materials, smooth wire with high strength and flexibility is used. The most suitable are products made from low-carbon steel grades, manufactured in accordance with GOST 3282 “Low-carbon steel wire for general purposes. Technical conditions".
Since without heat treatment the wire has low ductility and breaks easily when bent, annealed varieties are almost always used for tying.
Annealing can be:
- Light - produced in an inert gas environment without the presence of oxygen. Such products are easily distinguished by their light surface without traces of scale.
- Black - heat treatment is carried out in air, so the surface of the metal when heated is covered with a layer of oxides - black scale.
The presence or absence of “blackness” on the surface does not affect the strength or ductility, therefore it does not play a special role when tying.
However, during construction it may be necessary to produce welded meshes, which are also sometimes used as reinforcing structural elements. In this case, scale will interfere with quality welding.
In order not to waste time on its partial or complete removal when it is necessary to use products not only for binding, but also in welding work, it makes sense to purchase light-annealed wire.
For additional protection required for outdoor installations, products can also be protected with a zinc coating. In this case, zinc grades Ts1 and Ts2 are used, and galvanic or hot-dip galvanizing is used, respectively. A polymer coating of various colors can also be applied over the zinc layer.
Weight calculation
Wire is always supplied in coils or coils. Accordingly, to determine the weight you need to know 3 main parameters:
- length,
- diameter,
- weight 1 meter.
The weight of a meter of wire can be easily calculated based on its diameter. To do this, use the formula m= ρ*π*(d2/4), where:
- ρ – conditional density of steel; ρ=7500 kg/m3,
- π=3.14,
- d – diameter in meters.
The presence of coverage is not taken into account in the calculations.
Most often, steel wire with a diameter of 0.6-7 mm is used for tying. For your convenience, we have calculated the mass of a meter for all main sizes and presented it in the table.
You can make calculations for other sizes yourself or use an online calculator when ordering knitting wire.
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Advantages of working with us An order for any metal will be delivered on the day of the order if your order is received before 12:00 Deferred payment to our regular customers We assemble the entire created order into one machine Quality certificates for all our metal We provide professional advice on selection Metal shipment 24/7 (24 hours a day, seven days a week) We will carry out rough processing, cutting to size, cutting metal, galvanizing pipes, meshes. We will unwind rolls, unwind cold and cold rolls and OC rolls, longitudinal and transverse cutting. We will produce, pipe blanks up to 2 meters, plates, gussets. We will do it, non-standard operations for bending channels and other rolled products in a short time Wide range available in stock Any type of product can be purchased from us starting from one piece Fast delivery 7 days a week throughout Russia Entry passes to the Third Transport Ring and the Garden Ring
Source: https://stvybor.ru/staty/251-raschet-vesa-vyazalnoj-provoloki/
Calculator for calculating the weight of wire - welding, nichrome, copper, knitting, galvanized
The construction of various structures requires the calculation of certain parameters that determine this process.
We are talking, first of all, about construction calculators, the specificity of which is the accurate calculation of actions for the material involved (painting calculations, comparison of pipe weights, total sealant consumption, etc.).
Today, the Internet is replete with a huge number of sites where it is possible to resort to the help of construction calculators, and this is a very outstanding fact by its standards.
In a few seconds, you can accurately determine all the quantities (mass, diameter, weight) for a particular material, being involved in construction. As an example, a site that tells you how to build a sauna with your own hands, and at the same time measure the weight of the knitting wire, is suitable.
On the resource page (if you follow the link) an online calculator appears where you can calculate the mass of the metal cord by indicating the appropriate items in the boxes provided. In fact, there is nothing complicated in all this, you just need to use the right standards.
In addition, on the same site there is a tab - CONSTRUCTION CALCULATORS, by going to which you will find a whole list of these computing mechanisms - more than 30 of them. In addition to the already mentioned wire, here you can calculate the weight of the cable, channel, measure the ceiling area, etc.
More on how to put this entire “tool” to use immediately later in the text.
Instructions for using the calculator
So, correctly using a calculator to calculate the weight of galvanized wire along its length on the current website - for building a bathhouse with your own hands - is not such a costly task, even a schoolchild can cope with it. Since there is a large list of online calculators presented here, there may simply not be enough time to talk about each of them, much less provide full instructions.
As a certain kind of concept, we present just one summarized fact aimed at general instructions for using an online calculator: the user selects the desired source (from among building materials), clicks on it, and then gets to a page with detailed information about the product. Below is a table where you can calculate the final value, be it weight, volume, size. As you can see, everything is relatively simple. You can even calculate the consumption of welding wire, binding wire and nichrome wire.
Online calculators for calculating the mass of knitting wire (calculating the mass of wire by length and calculating the length by mass)
Calculation of the mass of knitting wire
Source: https://PostroitBanju.ru/calc/ves-provoloki
Knitting wire: questions and answers
Knitting wire as a building material is rarely given much importance. But in the construction of monolithic reinforced concrete structures it plays an important role. The main purposes of these products are to bind reinforcing elements into a strong and reliable frame and fix fasteners before welding.
A bonded reinforcement cage, for example, for a foundation, is not only cheaper, but also often more reliable compared to a welded structure.
Other areas of application of knitting wire are the production of steel ropes, masonry mesh, chain-link, barbed wire, securing cargo during transportation, installation and packaging work.
What kind of binding wire is needed for reinforcement
Knitting wire belongs to the hardware category of steel building materials. Its production uses low-carbon steel with a carbon content of 0.08 to 0.25%. The workpiece is a wire rod, the final product is obtained by cold drawing - pulling under high pressure through a hole of a smaller diameter.
To impart the required properties, the knitting wire is annealed - heated to a high temperature and then slowly cooled. During this technological event, the crystalline structure of the product, deformed during pressure treatment, is restored. This significantly reduces internal stresses in the metal.
Heat-treated binding wire, made of low-carbon steel, has excellent performance characteristics:
- high ductility combined with sufficient mechanical strength;
- no cracks due to slow natural cooling;
- low cost;
- The products are easy to use, easy to bend, knit, and fixed in a given position.
Attention! Wire that has not undergone heat treatment does not have the required properties and is not recommended for tying reinforcement. Unannealed wire bends heavily and breaks and breaks when tying a knot.
Which knitting wire is better
Knitting wire is produced annealed without coating, galvanized, with a polymer coating.
There are two types of annealing – dark and light.
- During dark annealing, which is carried out in the presence of oxygen, the binding wire acquires a dark color due to the formation of scale.
Advice! The presence of scale does not affect the mechanical characteristics, but it does get your hands very dirty. It is recommended to work with it wearing gloves.
- Bright annealing is carried out in special bell-type furnaces in the presence of an inert gas. Therefore, the surface of such wire is cleaner, and the price, naturally, is higher.
If you want to increase the durability of the frame of a reinforced concrete structure, for example, a strip foundation, purchase galvanized binding wire. Galvanizing is used for binding wire. The protective coating provides increased corrosion resistance of the product. According to reviews on the forums, it is very easy to use.
In the marking of the wire, the presence of heat treatment is indicated using the letter “O”, light annealing – “C”, dark annealing – “H”. In zinc-coated wire, the coating class is indicated - “1C” or “2C”. Products of class “2C” have a higher density of zinc coating.
Knitting wire is supplied in coils, skeins, and rosettes. Manufacturers also offer products for knitting frames in the form of wire segments with rings along the edges. Packages of cut wire can have a mass of 0.5-10.0 kg.
What diameter of binding wire is better?
The diameter of the binding wire is determined by the diameter of the reinforcement. In low-rise construction, 8-12 mm reinforcement is used, for which wire with a cross-section of 1.2-1.4 mm is considered the most suitable. Products with a diameter of 1.0 mm are too weak and often break off. Larger diameter wire is difficult to work with.
How much wire will be needed for reinforcement?
To determine the amount of binding wire, they are determined with a reinforcement diagram. It is difficult to accurately carry out such calculations, and this is not required, since the price of these products is low.
At the junction of two reinforcing rods with a diameter of 10 mm, pieces of wire approximately 25 cm long will be required; for knots of three rods, the length of the segment is approximately 50 cm. As the diameter of the reinforcement increases, the length of the segment increases. More precisely, the wire consumption per connecting point is determined experimentally. A completely simplified version - the number of all connecting nodes is multiplied by 0.5 and the required wire footage is obtained.
Attention! When purchasing, it is recommended to double the calculated amount of wire. Such a reserve is necessary, since during the knitting process some sections may tear or get lost. The size of the purchase may be less than stated.
The table below will help you buy the correct amount of binding wire. From it you will find out how many meters of knitting wire are in a kilogram, and the reverse information - how many meters are in a kilogram.
Table of the ratio of the mass and length of the knitting wire of the most common diameters in everyday life
| Diameter, mm | Weight 1 m, kg | Length of 1 kg wire, m | Weight of uncoated wire on a reel or coil, not less than, kg | Weight of galvanized wire on a reel or coil, not less than, kg |
| 0,6 | 0,00222 | 450,45 | 5,0 | 0,6 |
| 0,8 | 0,00395 | 253,17 | 5,0 | 0,6 |
| 1,0 | 0,00617 | 162,00 | 5,0 | 0,6 |
| 1,2 | 0,00888 | 112,6 | 8,0 | 2,0 |
| 1,4 | 0,0121 | 82,6 | 8,0 | 2,0 |
| 1,6 | 0,0153 | 65,4 | 8,0 | 2,0 |
| 1,8 | 0,0200 | 50,0 | 8,0 | 2,0 |
| 2,0 | 0,0247 | 40,5 | 8,0 | 2,0 |
Note - the minimum weight of uncoated and galvanized knitting wire in coils and coils is in accordance with GOST 3282.
When purchasing wire in a coil, to determine its length, divide the mass of the coil by the mass of 1 m of the product of the diameter you need. We take the data from the table. For example, you bought a coil of wire with a diameter of 1.2 mm, its weight is 50 kg. We make the following calculations - 50 kg/0.00888 kg = 5630 m. Using the table, you can make these calculations differently. 1 kg of wire with a diameter of 1.2 mm contains 112.6 m, which means that 50 kg contains 112.6x50 = 5630 m.
Knit or weld reinforcement
When comparing a welded joint and a knitted knot, at first glance, the welded seam is more reliable. Is it so? Let's look at what problems a weld poses:
- Welding degrades the characteristics of the metal in the heating zone. Therefore, during operation, either the seam itself or the metal exposed to high temperatures may burst.
- When pouring a concrete mixture according to the technology, it is supposed to be subjected to vibration, which negatively affects the strength of the seam.
- Welding work requires the involvement of a specialist welder.
Therefore, in monolithic construction, preference is often given to a cheaper method of joining reinforcement - connecting it using a tying wire and a hook.
DIY hook for fittings
A hook for tying reinforcement can be made independently from the reinforcement itself or simply a steel rod 6-8 mm thick and a bearing. The metal rod is bent into a hook, which allows you to conveniently grab the wire. A bearing is mounted in the handle, allowing the hook to rotate quickly.
You can buy a hook for fittings - with a straight or curved handle, with different angles of bending of the handle, shape and size of the hook. The optimal instrument design for each performer can only be determined experimentally.
Rebar hook, semi-automatic and automatic
You can purchase a semi-automatic or automatic hook model in the store.
- Semi-automatic hooks have a spiral built into the handle. This hook does not require rotation. If you pull the handle towards you, the tip begins to rotate. This tool is more expensive than a manual one; purchasing it makes sense when performing large-scale work.
- You can make a semi-automatic version of the hook yourself using a screwdriver and a metal rod with a curved end. The rod is secured in a holder, and work is carried out at very low speeds.
- An automatic hook for tying reinforcement is called a gun. Its productivity is a node per second. The wire does not need to be cut into measured pieces. It is simply tucked into the tool, and he himself ties the knots and cuts off the excess. The rebar tying gun does not require a power source to operate as it runs on a battery. Such a tool has one significant drawback - its high cost, which pays off with significant volumes of reinforcement work.
Source: https://www.navigator-beton.ru/articles/vyazalnaya-provoloka.html
Egoza barbed wire. Helpful information
Fidget barbed wire is a galvanized strip with double-edged, symmetrically arranged spiked blades, compressed around a steel wire.
In the production of Egoza barbed wire (KP Egoza), Yug-Proizvodstvo LLC uses galvanized tape GOST 14918-80 t. 0.5-0.55 mm.
Steel wire is used in accordance with GOST RF 7372-79 (galvanized) 2.5 mm.
At the request of the client, it is possible to use in the production of other types of wire GOST 3282-74, GOST 9385-75.
2.1. LLC "Yug-Proizvodstvo" produces any diameter of fidget barbed wire
The diameter of the spiral is selected individually for each object.
The diameter can be 500 mm, 600 mm, 700 mm, 800 mm, 900 mm, 950 mm.
For example, we recommend:
- on personal plots, for personal purposes, use a diameter of 500 mm.
- for the protection of production bases, construction sites, diameter 950 mm.
According to GOST of the Russian Federation, the size of the coil should be 10 p/m. At the request of the client, we will produce any length of the bay (5 m, 7.5 m, 10 m, 15 m, 20 m).
The weight of one coil depends on the diameter and number of linear meters in the coil. For example:
- coil weight diameter 500 mm. L10/ 62 turns is 8 kg.,
- coil weight diameter 900mm. L20/100 turns is 23 kg.
2.2. When purchasing fidget barbed wire, it is necessary to take into account the stretch length of the coil
The most important condition is that the distance between the turns should be no more than 200-250 mm.
If the coil is overstretched, this leads to an increase in the distance between the turns, and therefore the original diameter of the product is lost, the Egoza KP product is distorted, and the effectiveness of the barrier effect is reduced.
According to GOST of the Russian Federation, the stretching length of the Egoza coil is 10 linear meters, 62 turns (6.2 turns per 1 p/m).
It is permissible to use 50 or 40 turns, but this must be taken into account when installing fidget barbed wire.
2.3. Yug-Proizvodstvo LLC produces fidget wire, fastened along the diameter in three and five places
Five-point twisting allows you to more effectively maintain the shape of the razor fence.
Rabitz. History of invention.
Back in 1878, German inventor Karl Rabitz invented a metal mesh structural material, which he patented in his Patent No. 3789 of 1878. He also invented a machine for the production of metal mesh, which Karl called “Chain-link” in his patent.
It is currently believed that the earliest official patent for the production of mesh netting is patent No. 124,286 dated March 5, 1872, issued in the name of Peters.
Based on such an early mention of chain-link mesh, we can conclude that the need for metal fencing has existed for a long time and was in great demand.
Rabitz. Manufacturing technology.
The chain-link mesh is made on a special semi-automatic mesh weaving machine. For the manufacture of chain-link mesh, low-carbon steel wire is used; it is possible to use galvanized wire and polymer-coated wire.
The chain-link mesh comes in two types:
— woven rhombic mesh (acute angle of the rhombus 60 degrees)
— square woven mesh.
Chain-link mesh is supplied in rolls 10 meters long, height from 1.5 meters to 2 meters.
The end of the spiral in the roll is bent.
Chain-link mesh is supplied in regular rolls, the mesh fabric is wound in the usual way (for installation this is the most convenient way).
Wide range of applications for chain-link mesh:
— creating fencing for gardens, vegetable gardens, dachas;
— for sifting materials;
— for construction work;
— for thermal insulation work;
This makes it in demand today not only among individuals, but also many organizations use this type of fencing to protect their territory, production bases, and construction sites.
How to check the strength of a chain-link mesh?
The strength of the chain-link mesh depends on:
- depending on the cell size
- on the diameter of the wire.
The most durable mesh has a larger wire diameter and smaller cells.
Today, Yug-Proizvodstvo LLC, being a direct manufacturer, has the opportunity to offer various options for cell sizes and roll heights, depending on the customer’s wishes.
3. Capacity of the Egoza gearbox in a vehicle during transportation
No. Vehicle Egoza⌀500 Egoza⌀600 Egoza⌀900| 1 | Container 20 tons | 6000 m.p. | 6000 m.p. | 5000 m.p. |
| 2 | Container 5 tons | 2000 m.p. | 2000 m.p. | 1600 m.p. |
| 3 | Container 3 tons | 1000 m.p. | 600 m.p. | 400 m.p. |
| 4 | 20 foot sea container | 6000 m.p. | 6000 m.p. | 5000 m.p. |
| 5 | Gondola car 64 tons | 20 tons | 16 Tons | 12 tons |
| 6 | Kamaz length 12.5 m | 7000 m.p. | 6200 m.p. | 3600 m.p. |
| 7 | Kamaz open 9 m | 5000 m.p. | 4500 m.p. | 2000 m.p. |
| 8 | Kamaz open 6 m | 3000 m.p. | 2500 m.p. | 1500 m.p. |
| 9 | Kamaz with trailer | 6000 m.p. | 5500 m.p. | 5000 m.p. |
| 10 | Kamaz 31 m3 | 6000 m.p. | 5500 m.p. | 5000 m.p. |
| 11 | SuperMAZ 14 m | 6500 m.p. | 6000 m.p. | 4000 m.p. |
| 12 | Gas - booth 53 | 2000-2500m.p. | 1500-2000m.p. | 1500 m.p. |
| 13 | "Bychok" 16 m3 | 2000 m.p. | 1300 m.p. | 1000 m.p. |
| 14 | Gazelle tented | 1000 m.p. | 900 m.p. | 700 m.p. |
Source: http://xn----7sbicgn2c7h.xn--p1ai/egoza-info
Knitting wire for tying reinforcement: consumption, weight, other parameters
The so-called knitting wire is used to create a single frame from individual reinforcement elements, which is used to strengthen reinforced concrete structures. In fact, such a product, used for tying elements of reinforcement structures and manufactured in accordance with the requirements of GOST 3282-74, is one of the types of rolled metal.
Fastening the reinforcement frame of the foundation with knitting wire
The feasibility of using steel wire for tying reinforcement
Wire of various diameters, which is produced in accordance with the requirements of GOST 3282-74, has a general purpose. The material for its manufacture is low-carbon steel.
Depending on the purpose, the wire can be additionally subjected to heat treatment, its surface coated with a protective layer of zinc, and manufactured with normal or increased precision.
General purpose wire is used to produce nails and various types of fencing. It is also used for tying.
The name of the binding wire is due to the fact that it is most often used specifically for fixing several elements of various structures using the tying method. For this purpose, this product is most often used in construction - to create reinforcement frames. The wire for tying reinforcement must be soft enough, so it is additionally annealed so that it bends better and breaks less when bent.
Heat treated zinc coated binding wire (O-1C)
Using soft annealed wire it is much easier to make a knot that will reliably fix the reinforcement in any spatial position. It is for reasons of ease of bending that products with a diameter in the range of 1.2–1.6 mm are used for tying reinforcement. Due to its small diameter, such wire is easily knitted, allowing you to make various knots on the reinforcement frame.
The diameter range indicated above is optimal, since thinner wire will often break, and thicker wire is more difficult to work with: it does not make it possible to make a strong knot and, accordingly, ensure high reliability of the strapping. The choice of binding wire with or without zinc coating depends only on how durable the connection of the reinforcement frame elements for a concrete structure should be.
Fastening rods using a rebar tying gun
An alternative to connecting reinforcement elements with binding wire is welding, with which you can install metal parts much faster. Meanwhile, it is possible to obtain high-quality and reliable connections of reinforcing bars only through resistance welding, which requires a special apparatus and the experience of a qualified specialist.
If you use conventional electric arc welding for these purposes, you can overheat the joint, as a result, the reinforcement will become more fragile and may break under the influence of significant loads. Concrete structures, the reinforcement frame of which is connected using electric arc welding, are not highly reliable, since they are not able to withstand long-term and peak loads.
If the conditions for installing the reinforcement frame do not provide for the use of welding, its elements are fixed to each other using binding wire. It is also important that high-quality tying of knots does not require high qualifications, and you can learn how to correctly perform such a procedure very quickly. Quality control of this work is also quite simple; to carry it out, it is enough to check whether all nodes of the reinforcement frame have been strapped.
Main product parameters
The wire used for tying reinforcement for concrete can be supplied to the customer in coils or wound on spools. In this case, the weight of such a skein or reel is specified by the requirements of the regulatory document. Thus, the standard states that the minimum weight of a skein or reel in which wire with a diameter of 1.1–2 mm is supplied should be:
- 2 kg (if the product has a zinc coating);
- 8 kg (without zinc coating).
High-quality wire has standardized rigidity and can withstand a greater number of bends
The consumer, by prior agreement with the manufacturer, can order skeins whose weight will be 0.5–1.5 tons. Only one piece of the product can be wound onto skeins of binding wire for reinforcement, regardless of their weight. Unlike skeins, spools can contain up to 3 such sections.
The shipping documents for a batch of binding wire for reinforcement indicate only the weight, and the length can only be determined approximately. The standard does not stipulate this parameter, and determining the length of the product in a coil or on a reel is also made more difficult by the fact that even the regulatory document states that the diameter of the wire supplied to the customer may differ from the nominal one downwards.
An example of an accompanying invoice for a batch of binding wire
Tolerances for maximum deviations in the diameter of a binding wire with a cross-sectional size of 1.1–2 mm, depending on the manufacturing accuracy, are in the range of 0.05–0.12 mm.
In order to determine how many meters of a product there are in a coil, you must first find out what specific gravity it has (in other words, how much 1 linear meter of wire of a certain diameter weighs).
A quick and accurate method for determining this parameter is to divide the mass of a pre-weighed piece of product by its length. To find out how many meters of knitting wire for reinforcement are in a skein, it is enough to divide the total weight of the skein by the resulting value.
Permissible deviations of wire diameter according to GOST
The second method for determining the total length of wire in a coil is purely calculational and allows you to calculate fairly approximate parameters.
Knowing the nominal diameter of the wire in a coil, which may differ from the actual value of its cross-section in a larger direction, the weight of one meter of the product is determined by the formula.
Taking into account these errors, the calculated weight of one meter of binding wire for reinforcement will be less than its actual value. This means that the actual length of the product in the skein will be greater than that obtained when performing calculations.
The error between the actual and calculated values will be even greater if the coil contains zinc-coated wire.
In such cases, the increase in error is due to the fact that the density of zinc, which coats the surface of the wire, is less than that of steel (the density of steel is 7850 kg/m3, while the density of zinc is 7133 kg/m3).
To accurately determine the length of galvanized wire in a coil, complex calculations are required taking into account the thickness of the protective layer, which can also vary along the entire length of the product. This is why such calculations will always produce values with varying degrees of accuracy.
Minimum weight of a piece of wire on a reel
In practice, to determine the weight of one linear meter of both coated and not coated with a protective layer of zinc binding wire for reinforcement, the same formula is used M = qx S xh, where:
- M – weight of one linear meter of wire, measured in kg;
- q is the density of the metal from which the wire is made;
- S is the cross-sectional area of the wire, measured in m2;
- h – product length.
The cross-sectional area of the wire, which is a circle of a certain diameter (d), is calculated by the formula S = 3.14 x d2/4.
As an example, let's calculate the length of a coil of knitting wire weighing 8 kg and having a diameter of 1.1 mm.
- Cross-sectional area: S=3.14 x 0.00112/4 = 0.00000095 m2.
- Weight of one linear meter of the product: M=7850 x 0.00000095 x 1 = 0.00745 kg.
- Length of wire in a coil: L=8/0.00745 = 1073 m.
How to calculate the wire consumption for tying a reinforcement cage
The consumption of the tying wire required for tying the reinforcement should be calculated in each specific case. It will not be possible to use the norms specified in regulatory documents to solve such a problem, since such norms simply do not exist. The advice of experienced specialists will not be particularly helpful in this situation, since they are all based on personal experience and can differ greatly from each other.
The recommendation is that the amount of wire you purchase for tying the reinforcement should be twice the calculated value obtained. This is due to the fact that the wire often breaks when knitting, so you must have a supply of it.
Experts, as mentioned above, give different recommendations regarding determining the consumption of tying wire for reinforcement. Some of them say that 1 ton of reinforcing bars will require 10–15 kg of wire (1–1.5%), others say that 15–20 kg will need to be used.
If we consider the length of the segment that is necessary for tying one knot, then here too the opinions of experts differ. Some of them claim that when tying one knot, you can get by with 10–15 cm of product, others believe that such a procedure will require at least 30–50 cm of knitting wire. You can take these opinions into account, but you will have to determine the wire consumption based on your own experience.
Simple calculations allow you to determine with high accuracy how much wire is required to tie a certain reinforcement frame. In this case, it will be necessary to take into account the following parameters:
- diameter of the rods that need to be tied;
- the diameter of the knitting wire itself;
- the number of nodes in which it will be necessary to tie.
Wire consumption will double in those nodes where two horizontally located reinforcing bars intersect with a vertically located one. In the middle part of the reinforcement structure, the nodes can be made in a checkerboard pattern - through one joint, while at the edges of the frame all joints must be tied.
Wire consumption also depends on the knitting pattern
The length of the segment that you need to fix one knot is determined experimentally by performing one trial tie. You can do otherwise and determine the length of such a segment by calculation using the following formula: F=2 x 3.14 x D/2. The parameters used in this formula are:
- F – determined circumference of the reinforcement used (coverage).
- D – diameter of reinforcing bars.
It should be borne in mind that when using wire of a smaller diameter, more of it will be required, since knots from it will need to be made in several turns.
By calculating the length of a piece of binding wire for the reinforcement and multiplying the resulting value by the number of nodes in your reinforcement cage, you will find out how many meters of the product you will need. Based on the total footage of the wire, it will not be difficult to determine its weight by multiplying the resulting length by the specific gravity of one meter.
Source: http://met-all.org/metalloprokat/metizy/vyazalnaya-provoloka-dlya-armatury-rashod-ves.html
Weight of galvanized steel sheet 0.5, 0.7 and 1 mm 1m2 - table and how to calculate
According to technical literature, the service life of galvanized sheets ranges from 15 to 20 years. But does all galvanized steel meet this requirement? You have probably already witnessed how not even a year has passed, and rust is already visible on the surface of a sheet. This happens due to the thickness of the protective coating being too thin. So how to recognize such an unscrupulous manufacturer? The weight of the galvanized sheet will help us answer this question.
Galvanizing
To better understand the situation, let’s first look at what the galvanizing process is. Galvanizing is the application of a galvanic coating to the surface of a metal, the main element of which is zinc. The thickness of zinc depends on the coating class:
- 1st class - 38 microns;
- 2nd class – 22 microns.
The main task of galvanizing is to guarantee protection against corrosion to steel sheets.
It is known that most metals tend to oxidize under normal atmospheric conditions. The oxidation process is destructive for them and leads to a kind of surface abrasion (corrosion).
Some metals (zinc, copper, aluminum) prevent these reactions by forming a dense film of oxides that prevent further penetration of oxygen deeper. Others, which include iron, when interacting with oxygen, form a loose, fragile film, which contributes to the occurrence of oxidation processes. As a result, the sheets begin to become rusty. Applying zinc to the surface of such a metal solves this problem.
Why do you need to know the mass of a leaf?
The following points need to be highlighted here:
- To determine the dimensions of the profile of supports and floors. Based on the weight of the sheets, the load on the load-bearing elements of the metal structure is determined. Neglect of this point leads to premature destruction of the structure;
- The weight of the sheet steel gives an idea of the thickness of the galvanized surface. If the sheet weight exceeds its nominal value, while the total thickness corresponds to the declared value, this indicates that the sheet is galvanized of poor quality. The amount of zinc on the metal surface is underestimated, which will negatively affect its service life.
Methods for determining the weight of galvanization
There are 2 methods for determining the mass of galvanized sheet steel:
- Calculation from tabular data;
- Calculation using formulas.
The tables are more or less clear. They give a reference value for the mass of 1 sq.m. galvanized steel depending on its thickness. You can find them in technical literature.
As an example, let’s calculate the weight of galvanized sheeting of 0.5 mm with an area of 2 square meters. meters.
According to the Aviation Scales Handbook:
- Galvanized sheet 0.5 mm - 4.13 kg/m2
- Galvanized sheet 0.7 mm - 5.70 kg/m2
- Galvanized sheet 1.0 mm - 8.05 kg/m2
Multiplying the value we need by the size of our area, we find that the sheets weigh 8.26 kg.
Table
| Sheet, mm | Weight 1 m2, kg |
| 0,40 | 3,34 |
| 0,45 | 3,73 |
| 0,50 | 4,13 |
| 0,55 | 4,52 |
| 0,60 | 4,91 |
| 0,65 | 5,31 |
| 0,70 | 5,70 |
| 0,75 | 6,09 |
| 0,80 | 6,48 |
| 0,90 | 7,27 |
| 1,00 | 8,05 |
| 1,10 | 8,83 |
| 1,20 | 9,62 |
| 1,50 | 11,97 |
| 2,00 | 15,90 |
| 2,50 | 19,82 |
The second method is somewhat more complicated. The basic formula for calculating the weight of galvanizing looks like this:
Total sheet weight=steel weight + galvanized part weight
The weight of steel is found from the following ratio:
steel weight=sheet length*sheet width*steel thickness*steel density
Density for steel alloys is a reference value and is 7850 kg/m3.
As for the thickness of the steel, it depends on the class by which the sheet is galvanized (the value of the thickness of zinc is indicated above):
Steel thickness = total sheet thickness – zinc thickness
The weight of the galvanized layer is determined in a similar way. When calculating, it is necessary to pay attention to compliance with the dimensions of the quantities.
Source: https://prompriem.ru/stati/ves-ocinkovannogo-lista.html
Calculation of welding wire consumption per meter of seam
Even novice welders know that during welding work various components are used, such as wire or electrodes.
And if to operate a welding machine you only need access to electricity and can work endlessly, then components tend to run out. To ensure that materials do not run out at the most inopportune moment, their quantity can be pre-calculated.
This is especially useful during repairs, since it is possible to calculate the cost of welding work and tell the customer the exact price.
In this article we will explain in detail how to calculate the wire, give an example of the calculation and tell you about all the features.
Wire Features
Before calculating the consumption of welding wire, familiarize yourself with all the features of the filler material used in the work. First of all, the wire may have a different deposition rate, which significantly affects the final figures in the calculation.
If you use wire for welding with automatic or semi-automatic welding equipment, then calculating the consumption of welding components is simply necessary. When using argon arc welding, this is not necessary, but it won’t be superfluous either. Since with these types of welding it is recommended not to interrupt the welding seam, and this can only be achieved after accurately calculating the amount of wire. It is better to know in advance the consumption of welding wire when welding with a semi-automatic machine than to correct mistakes later.
There is such a thing as a material consumption rate. At the same time, the norm includes not only the amount of wire, but also its overuse in case of welder errors or unforeseen circumstances. When calculating, all stages of welding are taken into account: from preparatory to final. This can be compared to a construction estimate. Knowing the required amount of, say, brick, you know in advance how tall and thick the walls will be. Let's talk in more detail about the consumption standards for welding materials.
Consumption rates
For gas or argon-arc welding, there are wire consumption standards that are prescribed in regulatory documents. They were not taken out of thin air, but were calculated based on the existing experience accumulated by professional welders.
Each type of welding and type of wire has its own physical and chemical properties that must be taken into account when calculating, so it is impossible to give exact figures for material consumption for all welds at once. However, there are approximate general values, which you can see in the table below.
The table is for informational purposes only, do not take these numbers seriously, carry out the calculations yourself.
Most often, the consumption of welding wire per 1 meter of seam is calculated. This is very convenient because you can easily and quickly make subsequent calculations to increase or decrease the amount of material for the seam. On the Internet you can easily find a calculator for the consumption of welding materials, which will simplify the calculations. But we recommend learning how to calculate the amount of wire yourself.
How to calculate consumption
The consumption of welding materials for argon-arc welding or the consumption of wire for semi-automatic welding per meter of seam is made according to the following formula:
N = G*K
Where “N” is the desired parameter or, in other words, the rate of wire consumption per 1 meter, which we need to calculate. “G” is the mass of deposit on the finished weld, again one meter long. And “K” is the correction factor, which depends on the mass of the deposited material to the metal consumption required for welding. To find out the value of G (weight of deposit on a welded joint), we need this formula:
G = F*y*L
The letter "F" indicates the cross-sectional area of the joint in square meters. The letter “y” is the density of the metal from which the wire is made.
Note! "y" value is extremely important because each brand of wire can vary significantly in weight due to the metal used to make it.
The value “L” is automatically replaced by the number 1, since we are calculating exactly 1 meter. If you need to calculate more or less than a meter, then use a different figure. Using these formulas, you can calculate the wire consumption during bottom welding. For other welding methods, you need to multiply “N” “K” , other than 1.
"K" value changes according to the position:
- In the lower position, “K” is equal to the number 1
- With semi-vertical - 1.05
- When vertical - 1.1
- With ceiling - 1.2
If you are welding metal using a semi-automatic machine, consider the shielding gas used in the work, the characteristics of your welding machine, the diameter of the wire and the features of the parts.
Thanks to these simple calculations, you can easily find out the amount of wire needed to weld parts when using argon arc welding or any other type of welding work. Take into account all the features of the type of welding and the wire used so that the calculations are accurate.
Calculation example
To better understand the calculation principle, let's give an example. So, what will be the consumption of filler wire during semi-automatic welding if ordinary steel is used as the welded metal? Let's start by calculating the weight of the surfacing; the formula G = F*y*L .
G=0.0000055 (m2) * 7850 (kg/m3) * 1 (meter) = 0.043 kg
After this, you can begin to calculate the main value using the formula N=G*K
N = 0.043 * 1 = 0.043 kg
Please note that welding is performed in the down position. This means that the correction factor is equal to one, but the final value does not change.
Instead of a conclusion
Now you know how to calculate and find out the consumption of welding wire when welding semi-automatically or for any other type of welding. Don't think this skill won't be useful to you. On the contrary, it opens up new opportunities for you. Share this material on social networks to help other novice welders. We wish you good luck in your work!
Source: https://svarkaed.ru/rashodnye-materialy/flyus-i-svarochnaya-provoloka/raschet-rashoda-svarochnoj-provoloki-na-metr-shva.html
Weight of galvanized wire 1, 2, 3, 4, 5, 6, 8 mm
Galvanized wire is a type of construction wire that is produced by hot drawing followed by galvanizing the surfaces to increase anti-corrosion protection.
The main advantages are the low cost of its production and unique technical characteristics. Along with the high strength and stability of the structural steel from which this type of rolled metal is produced, the wire also:
- inert to moisture and corrosion;
- resistant to climatic changes and frost;
- insensitive to chemical media;
- has high elasticity and plasticity.
With such characteristics, it is widely used for braiding electrical cables, making mesh, barbed mesh, ground loops, making nails, screws, screws and household products.
Weight of 1 meter of galvanized wire, dimensions and weight of a coil of steel wire
The table shows theoretical data. Due to the fact that according to GOST standards small deviations (+ or -) in the diameter of the wire are allowed, the weight is 1 linear meter. may also change slightly.
| f, mm. | Hank weight, kg. | External f of the skein, mm. | Internal f of the skein, mm. | 1m/linear kg, not ots. | Weight 1m/linear. kg, gal. | Coil weight, kg. |
| 0,5 | 15 — 20 | 350-400 | 150-200 | 0,0015 | ||
| 0,6 | 20 — 25 | 400 | 200 | 0,0021 | 15-20 | |
| 0,7 | 25 — 30 | 400 | 150-200 | |||
| 0,8 | 30 — 70 | 350-500 | 150-200 | 0,004 | 22-30 | |
| 0,9 | 80 — 100 | 350-500 | 200 | 0,005 | 23-30 | |
| 1,0 | 80 — 130 | 500 | 250-450 | 0,006 | 0,0058 | 57-100 |
| 1,2 | 80 — 130 | 450-800 | 400-450 | 0,009 | 0,0094 | 50-120 |
| 1,25 | 120-160 | 750-800 | 400-450 | 0,0099 | 70-90 | |
| 1,4 | 120-160 | 750-800 | 400-450 | 0,012 | 0,0125 | 150-180 |
| 1,6 | 120-180 | 750-800 | 400-450 | 0,015 | 100-170 | |
| 1,8 | 120-180 | 800 | 400 | 0,019 | 0,0198 | 89-160 |
| 2,0 | 150-180 | 800 | 400 | 0,024 | 0,025 | 100-150 |
| 2,1 | 150-180 | 800 | 400 | 0,028 | ||
| 2,4 | 150-180 | 800 | 400 | 0,0312 | ||
| 2,5 | 150-180 | 800 | 400 | 0,039 | 0,405 | 100-150 |
| 2,8 | 150-180 | 800 | 400 | 0,0447 | ||
| 3,0 | 150-180 | 800 | 400 | 0,055 | 0,0572 | 130-180 |
| 3,25 | 150-180 | 800 | 400 | 0,0574 | ||
| 3,5 | 150-180 | 800 | 400 | 0,075 | 0,078 | |
| 4,0 | 150-180 | 800 | 400 | 0,099 | 0,1029 | 150-200 |
| 4,5 | 150-180 | 800 | 400 | 0,135 | ||
| 5,0 | 150-180 | 800 | 400 | 0,148 | 0,1601 | 150-220 |
| 6,0 | 150-200 | 750-900 | 450-500 | 0,220 | 0,2308 | 160-250 |
| 8,0 | 900-1200 | 1000 | 500 |
Standard weight values for galvanized wire:
Grid of weight values for one linear meter of OP made of round profile carbon steel, produced in accordance with GOST 1526-81 :
- 0.3 (mm) – 0.003 (kg), 0.5 (mm) – 0.005 (kg), 0.8 (mm) – 0.008 (kg), 1 (mm) – 0.01 (kg), 2 (mm) – 0.02 (kg).
Source: https://DomStrouSam.ru/ves-otsinkovanoy-provoloki-1-2-3-4-5-6-8-mm-na-1-metr/
