How many electrodes are in a pack of 1-5 kg. Weight of one electrode and pack
The main consumable material in the manual arc welding process is a coated welding electrode. The coating is intended to protect the weld pool from the negative effects of oxygen. For its production, a charge containing various chemical elements and minerals is used. The properties of the future seam are determined not only by the material of the metal rod, but also by the composition of the coating.
The electrode markings do not display information about the physical parameters of the products:
- length;
- thickness or diameter;
- weight.
Often, knowledge of this data is necessary when making calculations on the amount of deposited metal or determining the consumption of electrodes per 1 meter of weld. When purchasing welding materials, it also does not hurt to be aware of the correct number of rods in the pack, taking into account the dishonesty of some sellers.
In this article we will try to understand these issues, based on the regulatory and technical requirements of GOSTs.
Each box with electrodes has a plate with technical characteristics and markings, which indicates the following data:
- trademark and name of the manufacturer;
- brand of electrodes;
- diameter and length;
- symbol;
- application area;
- date of manufacture and batch number;
- welding modes, characterizing the dependence of the welding current on the diameter of the electrode and the thickness of the metal;
- options for making welding seams - vertical, horizontal, ceiling;
- mass of electrodes in a pack;
- other data characterizing the maximum moisture content, re-calcination modes and properties of the weld metal.
Table with technical characteristics of electrodes with basic coating UONII-13/55
In this image we can see that with a diameter of 4.0 mm and a length of 450 mm, the total weight of the box will be 6.0 kg. But this is only a specific brand and a specific manufacturer. To complete the picture, let's look at what is written about this in the NTD.
Pack weight
GOST 94 466 – 75 regulates the mass of electrodes in a pack depending on the diameter. According to clause 6.2. of this document, the parameters should not exceed the following values:
We recommend! Welding electrodes for aluminum
| ∅, mm | Weight, kg |
| 2,5 | 3 |
| 3,0-4,0 | 5 |
| over 4.0 | 8 |
Thus, these are not strictly fixed standards, but an indication of the permissible limit. However, manufacturers, as a rule, adhere to these figures. Other documents, such as GOST R ISO 2560-A and GOST 9467-75, impose requirements on the type of coating, mechanical strength of the weld metal, etc.
GOST 94 466 – 75. clause 6.2. The deviation of the mass of electrodes in a box or pack from that indicated on the label or marking should not exceed half the calculated mass of one electrode in the direction of decrease and the calculated mass of two electrodes in the direction of increase.
Pack weight depending on brand and manufacturer
Examples include weighing scales from the following brands and manufacturers:
| Brand | Manufacturing plant | Diameter, mm | Box weight, kg |
| OK 46.00 | ESAB-SVEL | 3,5 | 5,3 |
| 4 | 6,6 | ||
| SE-46 | Tyumen | 3 | 5 |
| 4 | 6 | ||
| 5 | 5,5 | ||
| UONII-13/55R | ESAB-SVEL | 3 | 4,5 |
| 4 | 6,0 |
Number of electrodes depending on diameter
Taking into account the overall dimensions of the box and restrictions on the weight of the package, the number of rods corresponds to the following tabular data:
| Diameter, mm | Length, m | Weight, g | Quantity per pack, pcs. | Total package weight, kg |
| 3 | 350 | 26,5 | 95 | 3 |
| 4 | 450 | 60 | 82 | 5 |
| 5 | 450 | 95 | 52 | 5 |
Weight of one electrode
Although the thickness of the coating and the material of the rod are standardized values determined by GOST, errors are inevitable during the production process, which will affect the weight of the final product. A discrepancy of 1-2 g is considered acceptable. After all, the prevailing indicator will be the weight of the pack, measured in grams, and the weight of one electrode can be found out by a simple arithmetic operation: divide the total weight of the box by the total number of products in it.
| ø, mm | Weight, g |
| 2,5 | 17,0 |
| 3 | 26,1 |
| 4 | 57,9 |
| 5 | 82 |
Source: https://svarkagid.ru/materialy/skolko-elektrodov-v-pachke.html
How many electrodes are in a pack | ELECTRODE SK
Electrodes have become the main consumable material in welding, which ensures all the success of the process. The metal that is in its rod is melted under the action of thermal energy, which is generated from an electric current, on an arc between the end of this rod and the surface of the workpiece.
The molten metal forms a weld pool in which the consumable material melts, mixing with the metal in the workpiece and, after cooling, forming a tight, permanent joint.
All the properties that a seam should have are determined not only by the material of the product core, but also by its coating, so choosing the right type should be an important point.
There are many varieties that differ not only in their composition, but also in physical parameters. This could be length, thickness, manifested in diameter, and so on. The main parameter in the finished version is always the weight of the deposited metal, but upon purchase, electrodes can be sold either individually or by weight in a pack.
For all varieties, the values will be different, since much here depends on the thickness and density of the coating, without which products are rarely produced. This also affects the diameter of the product, which can differ even with the same composition of the rod and coating.
To simplify calculations, when selling, indicate how many electrodes are in a pack, as well as the weight of the pack of electrodes.
Directions for use
When using welding equipment, it is important to adhere to the specified modes. But don’t forget about the preparatory procedures.
The fact is that the winding tends to accumulate moisture, as a result of which, when starting work, it can boil inside from high temperature, which will lead to parts of the winding falling off and defects in the welding seam. To prevent this, the materials should be dried or calcined in advance before working with dry electrodes.
For each of them, the procedure should not be repeated more than twice, as this also harms their condition. moisture also affects how much one piece weighs out of the package, so it makes sense to talk about dry weight only.
The use of all materials must be safe, since unprepared materials can lead to sticking, which negatively affects the operation of the welding machine.
All cinders and other used pieces of metal should be immediately moved to a specially designated place so that this does not lead to hazardous situations.
In addition, it is necessary to follow basic rules for working with electrical equipment, securely fasten the electrode, choose the correct markings and ensure proper storage.
Number of electrodes in a pack depending on diameter
Each parameter of the product affects the size of the package, and accordingly its capacity. Taking into account the fact that many manufacturers sell them by weight, the larger the diameter of the rod, its length and the thickness of the winding, the fewer pieces in the pack. For those who do not purchase them in large quantities, this information is not so important, but for large purchases you need to know all this for calculation. Standard data for one of the most common brands of electrodes, UONI-13/55, looks something like this:
| Diameter | Length, m | Weight, g | Quantity per package, pcs. | Total package weight, kg |
| 3 | 0,35 | 26,5 | 95 | 2,5 |
| 4 | 0,45 | 60 | 82 | 5 |
| 5 | 0,45 | 95 | 52 | 5 |
For other brands, the trend remains approximately the same, but the quantity itself will change, since the brand of electrode also affects the physical parameters on which the package size is determined. If there is a weight limit, the number of products may change, and in other cases the weight of the package changes.
Pack weight depending on manufacturer
Naturally, all this also depends on the manufacturer who creates the packaging, but the principles remain the same in all places. The diameter may have deviations of tenths of a millimeter, and this will affect other parameters. All this can be considered using examples with relatively small differences from various manufacturers:
How many pieces are in one original packaging and the weight of one unit of UONI-13/55 from one manufacturer:
| Diameter (mm) | Length (m) | Box weight (g) | Product weight(g) | Number of units per package (pcs.) |
| 2,5 | 0,35 | 4 500 | 18,8 | 240 |
| 3,2 | 0,35 | 4 700 | 30,7 | 153 |
| 4 | 0,45 | 6 000 | 63,2 | 95 |
How many pieces are in one original packaging and the weight of one unit of UONI-13/55 from another manufacturer:
| Diameter (mm) | Length (m) | Box weight (g) | Product weight(g) | Number of units per package (pcs.) |
| 2,6 | 0,35 | 5 000 | 20 | 250 |
| 3,2 | 0,35 | 5 000 | 31 | 161 |
| 4 | 0,4 | 5 000 | 53 | 94 |
| 5 | 0,4 | 5 000 | 82 | 61> |
MP-3 electrodes - characteristics and features of use
Most often, welding work is performed using consumable electrodes. To perform such work with parts made of carbon steel, as a rule, MP-3 electrodes are chosen.
Characteristics of MP-3 electrodes
The regulatory documents according to which MP-3 brand electrodes are produced are GOST 9466 and 9467. According to the requirements of the latest standard, these products are classified as type E46.
It is recommended to use them for welding parts made of carbon, structural and low-alloy steels that have a mechanical tensile strength (temporary) not exceeding 50 kgf/mm2, which corresponds to 490 MPa.
Such electrodes can be used to weld parts whose thickness is in the range of 3–20 mm.
For the production of MP-3 welding electrodes, Sv-08 wire is used, the diameter of which ranges from 3 to 6 mm. In accordance with the diameter of the wire that was used to produce the electrodes, they are also classified according to this main parameter (from D 3 mm to D 6 mm). The technological characteristics of these products are determined by the rutile type coating that is applied to them.
The weight of individual MP-3 electrodes of different diameters, the length of which can be in the range of 300–450 mm, is:
- with a diameter of 3 mm - 30 grams;
- with a diameter of 4 mm - 60 grams;
- with a diameter of 5 mm - 92 grams.
Finished products are placed in packs whose weight is:
- diameter 3 mm, pack contains 83 pcs. — 2.5 kg;
- diameter 4 mm, pack 41 pcs. — 2.5 kg;
- diameter 5 mm, pack 54 pcs. — 5 kg.
Electrodes of the MP-3 brand require compliance with certain storage conditions: a dry heated room, the temperature in it should not be lower than +15 degrees. In addition, it is necessary to exclude the possibility of moistening the products, their contamination, as well as mechanical damage to their surface. If the welding electrodes were stored in conditions of high humidity, then before use they must be dried by placing them in an oven with a temperature of 180 degrees for one hour.
Features of using MP-3 electrodes
To work with MP-3 electrodes, both direct and alternating current sources can be used. The current sources used must provide an open circuit voltage (OCV) of at least 50V. If a direct current source is used, then welding should be performed with reverse polarity (the plus is connected to the electrode). Welding electrodes of the MP-3 brand allow you to perform work in different spatial positions.
Products of the MP-3 brand are distinguished by the following technological characteristics:
- the welding arc ignites easily and is characterized by high combustion stability;
- easy formation of a weld seam;
- minimal metal spattering;
- the slag crust that forms on the surface of the weld is easily separated;
- re-ignition of the arc is also easy;
- Welding work performed using MP-3 electrodes is characterized by high productivity, as well as the quality of the resulting seam.
The weld metal, like the deposited metal, has the following characteristics: mechanical tensile strength (temporary) - up to 46 kgf/mm2, which corresponds to 450 MPa; impact strength indicator - 8 kgf m/cm2 (80 J/cm2); relative elongation - 18%; bend angle (for a welded joint) - 150 degrees.
The welding current to which the power source must be adjusted depends both on the diameter of the electrode and on the spatial position of the seam being formed:
- Products D 3 mm: vertical seams - 90-110A, bottom seams - 100-140A, ceiling seams - 100-120A;
- D 4 mm: vertical seams - 140-180A, bottom - 160-220A, ceiling - 140-180A;
- D 5 mm: vertical seams - 160-200A, bottom - 180-260A;
- D 6 mm: only lower seams - 300-360A.
The technical characteristics of the electrodes also include their consumption for depositing a certain amount of weld metal. So, in order to deposit 1 kg of metal, 1.7 kg of MP-3 electrodes are needed. At the same time, electrodes of this brand provide a productivity equal to 1.7 kg/h (products D 4 mm), and the deposition coefficient corresponds to a value of 8.5 g/Ah.
Blue welding electrodes MP-3C
Features of products of the MR-3 and MR-3s brands
MR-3s electrodes, like products of the MR-3 brand, allow welding with a long arc, as well as with short tack welding. What is important is that the technical characteristics of products of these brands allow you to work without wasting time on preliminary preparation of the metal to be welded. The surface of the parts that need to be connected can be:
- wet;
- not well cleaned from various contaminants and oxides;
- with traces of corrosion.
Electrodes of the MR-3s brand, as well as products of the MR-3 brand, can be used when welding must be performed along the existing gap. The welding current should be minimal, otherwise the finished seam may turn out porous.
In addition to MP-3 brand products, MP-3m and MP-3s electrodes are actively used. The first ones (MR-3m) are distinguished by the fact that they are coated with rutile-ilmenite coating. Electrodes of the MP-3c brand (blue) use a coating enriched with additional ionizing additives. Both MP-3m and MP-3s electrodes are almost identical to MP-3 brand products in their characteristics.
The coating applied to the MP-3s electrodes makes it easier to ignite the welding arc, which makes it possible to use them when working with low-power current sources.
Products of this brand are also more environmentally friendly: when working with them, a significantly smaller amount of harmful substances are released than when working with MP-3 (0.6 grams of manganese for MP-3s and 1.25 for MP-3).
Moreover, when working with them, the weld is of higher quality, which significantly improves the characteristics of the joint being formed.
Source: http://met-all.org/obrabotka/svarka/elektrody-mr-3-harakteristiki-i-osobennosti-ispolzovaniya.html
Welding electrodes CONTINENT MP-3 Ø3.0 mm (2.5 kg)
Reviews (0)RUB 3.99/kg. without VAT
Pack 2.5 kg. MP-3 PLASMA electrodes for manual arc welding of ordinary and critical structures made of carbon steel grades.
Type of coating: rutile
Purpose and scope
MR-3 PLASMA electrodes are intended for manual arc welding of ordinary and critical structures made of carbon steel grades in all spatial positions, except vertical, top-down.
Directions for use
Deposition rate - 8.5−9.5 g/Ah. Electrode consumption per 1 kg of deposited metal is 1.7 kg. Designed for welding fillet, butt, and overlap joints of metal with a thickness of 3 to 20 mm. Welding with MP-3 APC electrodes must be performed with direct current of any polarity or alternating current from a transformer with an open circuit voltage of at least 50 V.
Chemical composition of deposited metal, %Mn
| Mn | Si | C | P | S |
| 0,40−0,75 | 0,15−0,40 | no more | ||
| 0,10 | 0,045 | 0,040 |
Mechanical properties of weld
| Tensile strength, N/mm2 | Relative extension, % | Impact strength, J /cm2 |
| ≥450 | ≥18 | ≥78 |
Special properties
- MP3ARS electrodes provide easy gap bridging;
- High level of welding and technological properties, ease of conducting the welding process, re-ignition of the arc when setting tacks;
- High presentation of seams;
- Good separability of slag crust;
- Welding with an extended arc on an oxidized surface is allowed;
- Good sanitary and hygienic indicators
Welding data
| Welding current strength, A, for electrode diameter, mm | ||
| 3,0 | 4,0 | 5,0 |
| 70−130 | 130−220 | 150−26 |
Packaging details
| Diameter, mm | Length, mm | Electrode weight, g | Number of electrodes in a pack, pcs. | Pack weight, kg |
| 3,00 | 350 | 30 | 34; 84 | 1; 2,5 |
| 4,00 | 450 | 58−59 | 42; 83 | 2,5;5 |
| 5,00 | 450 | 92 | 27; 55 | 2,5; 5 |
Analogs
| Manufacturer | Electrode brand |
| Thyssen | Phoenix SH Gelb R |
| JSC Spetselektrod | OZS-4 |
Calcination before welding
Under normal storage conditions, they do not require calcination before welding. In case of moistening, drying before welding: (150−180) °C - 40−60 minutes.
Certification
Certificate of compliance with state standards of the Republic of Belarus (StB)
To find out the cost or consult a specialist, you can call:
+375 (29) 176-87-76
+375 (44) 787-73-45
Multichannel
+375 (17) 361-30-94
+375 (17) 361-23-82
Source: https://mdfkl.by/kontinent-mr-3-o3-0-mm-2-5-kg.html
How many electrodes are in a pack
Electrodes are the main consumable raw material, on the success of which the entire welding process depends. Thermal energy affects the metal rod of the electrode and, under the influence of electric current, a weld pool is formed from it.
During the cooling process, the mixed substances together on the surface of the workpiece create a reliable connecting seam.
To provide the junction with additional properties, it is necessary to choose the right type of electrode, since it is its composition that affects these characteristics.
There are several types of electrodes, differing in length, thickness of metal deposited on the product, and diameter. For convenience, when packaging any pack of electrodes, information about the number of pieces, as well as its total weight, is indicated on it.
Operating instructions
It is important to comply with all regulations and rules during the operation of welding devices and to work exclusively in the prescribed modes. A special place is occupied by the preliminary preparation of electrodes before welding.
To eliminate the possibility of the internal rod boiling due to temperature, the electrodes should be calcined in advance, which will allow you to get rid of excess accumulated moisture.
The ideal number of repetitions of this procedure is 2 times; if this limit is exceeded, the welding quality will also be damaged.
The serviceability of each electrode should be checked in advance to eliminate the possibility of sticking. The remaining cinders and other parts of unused electrodes must be removed from the work area. In addition, violation of basic rules for operating electrical equipment can lead to injuries, poor quality work and other emergency situations.
The ratio of pieces and diameter of electrodes in one package
Each change in the main characteristics of an individual electrode can have a complex impact on the parameters of the completed pack of these products. Many organizations purchase products based on the weight parameter, which requires a mandatory preliminary analysis of the following characteristics of the electrodes:
- Diameter.
- Weight of 1 piece and its length.
- Number of electrodes included in 1 package.
- Total weight.
If we compare a package with electrodes of 4 diameters, a short length of 0.45 and a weight of 1 piece per 60 g, then the number of electrodes in the pack will be 82 pieces. But if you change to increase the diameter and specific gravity of the electrodes, then only 52 pieces will fit in the package, and the other characteristics will remain unchanged.
Electrode pack weight
Even the brand of the manufacturer influences the fullness of the packages; in order to comply with weight restrictions, electrodes of different quality are packaged in completely different quantities.
During production, each manufacturer uses different technologies for creating electrodes, which affects the final diameter of a single product. When comparing at the piece level, the differences are practically indistinguishable, but when comparing packages, the distinctive trend can be seen quite clearly.
Individual parameters: electrode weight
During the production of electrodes, the mass of a single product can fluctuate within 1-2 grams, which is not a significant drawback. When determining the total weight of electrodes in a pack, they always try to make the final indicator the same. The number of pieces will not always be the same, but the weight characteristics will be the same.
To determine the weight of one electrode, it is enough to know the total weight of the package, and then simply divide this number by the number of pieces to determine the specific gravity of the electrode. The weight of the product is also directly proportional to its own diameter.
Source: https://svarkagid.com/skolko-jelektrodov-v-pachke/
Number of electrodes per package depending on brand, type, manufacturer
Many welders are interested in the question: “How much does one electrode weigh?” And for good reason. This indicator is very important for the selection of materials. Knowing reliable information, you will be able to avoid deception, but also choose rods with the required weight.
These indicators greatly influence the outcome of welding work, and also the condition of the finished joints. But don’t forget about the coating, diameter and condition of the products.
Our article will discuss the weight of a pack and a single electrode. You will find out how many parts are put in a single pack. With this information you will be protected.
A short introduction
Let's start with the fact that the electrode is considered almost the main mechanism in welding work. Even wires and protective gases fade into the background.
Using RDS welding technology, you can easily carry out repairs or weld different elements. Your arsenal should only include a portable inverter and a pack of electrodes. Manual arch welding can be so easy!
Simplicity is not always good when it comes to the quality of seams and the need to select the right components. If the brand is chosen incorrectly, all your efforts will be in vain.
To choose a good mesh, you need to know its composition and basic parameters.
In the 21st century, you have dozens of types of mechanisms with their own characteristics at your disposal. But physical quantities play a primary role. Especially when you are interested in wholesale purchases of parts.
Retail chains sell welding rods in individual packages, and small stores are interested in individual sales. When the weight of materials is known, it is convenient for both the buyer and the seller.
You will be able to buy the required number of parts in a few minutes.
But sometimes it happens that the store tries to deceive you. To avoid such situations, it is important to carefully understand this issue. We will tell you how many electrodes are sold in packs and what their weight is.
Number of anticathodes
The number of electrodes in the package largely depends on the manufacturer
Why does the number of parts play a big role during the purchase? This is logical: the number affects the weight of the package and the number of mechanisms in it. The more parts in the pack, the larger the container.
If we talk about the quantity parameter, the following formula works here: the larger the diameter and length of the material, the fewer pieces in the package.
Are you a regular shopper? Then you don't have to think about these moments. This data will be useful for wholesale buyers, for whom the number of electrodes and their total weight are important.
Undoubtedly, information is of great importance if the number of mechanisms is 100 or more.
Take note of the table in which you will see the exact number of electrodes in a pack of type UONI-13/55. Please take into account the fact that we indicated average values, which in practice differ from each manufacturer.
Speaking about other companies, the number of mechanisms in such packs is not easy to determine. The indicator is influenced by more than one factor: the shape, length, and diameter of the parts.
They are different for each individual marking. It is impossible to calculate even approximate indicators. There is only one way out: carefully study the packaging before purchasing.
Anticathode weight
Please take into account the fact that the mass of an individual electrode may vary depending on the batch. Even in a situation where the manufacturer of the material is the same brand.
These indicators are affected by the volume of coating that covers all electrodes. The process is not always neat and uniform. The error is small. Underweight or overweight of one is approximately 1-2 grams.
The weight of the entire package and the number of electrodes that fit into the conventional weight framework are also taken into account. This indicator is no different in 9 cases out of 10.
If you want to find out the weight of an individual part, divide the weight of the package by the number of parts indicated on the pack. You will know the approximate weight, taking into account minor errors. Remember that diameter often affects the weight of the electrodes.
Speaking about the mass of packaging parts, each manufacturer declares its own figures. The average is 5 kilograms. Sometimes a pack can weigh 4, sometimes 6 kilograms.
Check out the table of approximate weights and number of parts in a pack. We are talking about electrodes of the UONI-13/55 type.
How can you tell if your packaging is underweight? You must take into account the fact that if the weight of 6 kilograms is indicated on the pack, then the electrodes will not always be of exactly that mass.
There is often a small error that does not exceed a few grams. Everything above is already a deception.
Sometimes it happens that certain sellers, in an attempt to make money, remove one or two parts from each pack. Then they sell the electrodes under the guise of loose ones and make more profit “bypass the checkout.”
This happens from time to time when the store has large quantities of mechanisms. For self-defense, we advise you to buy anti-cathodes from reliable brands that work officially. A good option is to purchase parts from the manufacturer.
Let's sum it up
We talked about the main points that are worth knowing about the number of electrodes in a pack and their weight. The parameters are quite accurate, but they may differ depending on the brand parameters.
Once you have been in business for more than one year, you will be able to easily buy parts and not worry about being scammed. Being able to determine the weight of electrodes “by eye” is useful.
More practice is needed in this matter. You should not miss this, because you will be able to avoid significant overpayments.
Have you ever been deceived in such cases? What principles or techniques do you use to select electrodes? Share your opinion in the comments! Enjoy the shopping.
Source: https://prosvarku.info/elektrody/kakim-dolzhno-byt-kolichestvo-elektrodov-v-odnoj-standartnoj-upakovke
Electrodes OK-46.00 E-46 d 3mm (pack 5.3kg) ESAB
OK 46 welding electrodes are designed for welding low-alloy and low-carbon steel grades with a yield strength of up to 380 MPa. Welding with these electrodes is carried out in all spatial positions, with alternating and direct current of any polarity. OK 46 electrodes can be safely called universal.
Manufactured in diameters: 2, 2.5, 3, 4, 5.
Technical characteristics OK 46.00.
Coating: rutile cellulose ;
Electrode rod: steel welding wire Sv08 (Sv08A) ;
Surfacing productivity (diameter 4.0): 1.4 kg/h ;
Consumption of electrodes per 1 kg of deposited metal: 1.7 kg ;
Surfacing coefficient: 8.5 g/Ah ;
Current: direct and alternating of any polarity ;
Open circuit voltage: 50 V ;
Calcination mode: 70-90°C, 1 hour.
Table 1.
Technical characteristics of welding electrodes OK 46.00.
| Diameter, mm | Current strength, A | Length, mm | Number of electrodes in 1 kg, pcs. | ||
| Lower | Vertical | Ceiling | |||
| 2 | 40-80 | 40-60 | 50-70 | 300 | 50 |
| 2,5 | 60-110 | 60-90 | 60-110 | 350 | 45 |
| 3 | 80-160 | 80-140 | 80-180 | 350 | 39 |
| 4 | 110-210 | 110-200 | 90-220 | 450 | 19 |
| 5 | 150-300 | 150-280 | 150-270 | 350 | 13 |
OK 46 are insensitive to poorly cleaned metal surfaces from rust, to water, oxidized surfaces and other contaminants, which indicates their manufacturability. OK 46.00 can be used when welding galvanic surfaces, i.e. with galvanized coating. Also, the advantage of these electrodes is the ease of ignition of the first and subsequent arcs, which means welding can be done both over short distances (with tacks) and over long ones.
Seam OK 46.00.
A distinctive feature of OK 46.00 is its seams. A smooth seam is formed on the surface of the metal with a smooth transition to the parts being welded. We can say that they have a good presentation and an excellent business card.
Mechanical characteristics of weld metal properties OK 46.00.
Yield strength: 400 MPa ;
Temporary resistance of electrodes: 515 MPa ;
Relative extension: 25 %;
Impact strength: 140 J/cm2 .
Table 2.
Mass fraction of chemical elements in the weld.
| Carbon, C | Silicon, Si | Manganese, Mn | Phosphorus, P | Sera, S |
| No more | No more | |||
| 0,08 | 0,3 | 0,4 | 0,03 | 0,03 |
Welding with OK 46 electrodes.
Welding OK 46 electrodes can be performed at relatively low threshold values of the minimum current. This suggests that, unlike other brands of electrodes, at low current values, the arc burns invariably and stably. Thanks to low no-load voltages, it has become possible to carry out welding work in everyday life from home power sources.
The economic component of working with these electrodes is not high.
Electrodes OK 46.00 technical characteristics
Due to the low heat input, it is possible to weld metal with wide gaps between them.
Also, the advantages include relatively low temperatures in the welding area, which prevents overheating, the formation of hot cracks and spattering.
Analogues: ANO 4, ANO 6, ANO 29M, ANO 23, OZS 6, OZS 12, MR 3.
Welding electrodes OK 46.00 are used throughout and in all industries, due to their qualities and speed of welding work. Their seams have high tightness and good resistance to aggressive environments.
Source: https://svarka-22.ru/elektrody-ok-46.00-e-46-d-3mm-pachka-53kg-esab.html
Technical characteristics of electrodes MR-3 and MR-3S
MP-3 electrodes type E46 are used for welding low-carbon steels.
Technical characteristics of MP-3
- consumable electrode with rutile coating;
- the rods are made from Sv-08 wire;
- welding in all spatial positions except vertical (top to bottom);
- no-load voltage - 60-80 volts;
- arc - short, medium;
- current - alternating, constant, reverse polarity;
- deposition coefficient - 8.5 g/Ah;
- spray coefficient - 9-13%;
- consumption of electrodes per 1 kg of deposited material is 1.7 kg;
- calcination of electrodes at a temperature of 150-180 degrees.
Mechanical properties of metal:
- temporary tensile strength of at least 46 kgf/m2;
- relative elongation of at least 18%;
- impact strength of at least 8 kgf/cm2.
Mass fraction of chemical composition elements (table):
Weight of one MP 3 electrode based on diameter:
- 30 g (3 mm);
- 60 g (4 mm);
- 92 g (5 mm).
Number of rods in a pack and its weight:
- 83 pcs, 2.5 kg (3 mm);
- 41 pcs, 2.5 kg (4 mm);
- 54 pcs, 5 kg (5 mm).
The price for MP-3 electrodes is reasonable. 3 mm rods are purchased for 80 rubles kg.
MP3 electrodes are stored in dry rooms. When moistened, calcinate for 1 hour at 150-180 °C.
Recommended current values
The table will help you determine the welding current depending on the diameter of the electrode and the method of application.
Advantages of using MP-3:
- high arc stability;
- moderate metal spattering;
- beautiful seam formation;
- good separability of the slag crust.
Technical characteristics of MP-3S electrodes
Not much different from MP-3. The product has a rutile coating with special ionizing additives. MP 3C (blue) are a relative of OK 46 and operate on low-power household welding machines of 50 volts.
When burned, 0.6 grams of manganese are released versus 1.25 grams. That's all the differences. Other characteristics are the same as MP-3.
review of MP-3S.
Reviews
Ivan:
Basil:
Professional welder, Ivan Koreiko:
Source: https://plavitmetall.ru/elektrody/mr-3-texnicheskie-xarakteristiki.html
Calculation of the required number of electrodes for manual welding
The required number of electrodes for manual welding is calculated based on the weight of the deposited metal in the weld. In turn, the weight of the deposited metal depends on the thickness of the base (welded) metal, on the gap between the ends being welded, on the position of the parts being welded (position of the weld), as well as on the length of the seam and the skill of the welder.
If the welder’s skill meets the qualifications required for this type of work, then the calculation of the weight Pnm of the deposited metal is normalized according to the specified parameters and reduced to one linear meter of weld length. The Pnm parameter is tabular. For example (see 4th line in table.
1), when welding two sheets of metal 3 mm thick on one side, with a gap between the sheets of 1.5 mm and with the weld in the lower position, 50 g of metal deposited into the seam will be required per linear meter of welding.
It is clear that the weight of the deposited metal is mainly the weight of the metal of the usefully used electrodes, which, with coated electrodes, is equal to their weight, minus the weight of the cinders and the weight of the non-metallic components of the coating. The coefficient η = 0.1÷0.3, which takes into account the underutilization of the total weight, is usually indicated at their factory setting or in the accompanying documentation.
Thus, based on the reduced weight Pnm of the deposited metal and the length L of the weld and taking into account the coefficient , it is possible to determine the number of electrodes required for this type of welding:
Pe = (1÷η) Pnm L;
Ne = Pe/Po,
where Pe is the total weight quantity (total mass) of electrodes; Po is the weight of one electrode.
Thus, for welding according to the parameters of line 4 (Table 1) per hundred linear meters of the weld (L = 100 m), it will be necessary to deposit 5 kg of metal into the seam and consume 6.5 kg of the mass Pe of coated electrodes. With the weight of one electrode Po = 85 g, 77 electrodes will be used.
The required number of electrodes for other types of welding work is calculated in a similar way (see Tables 1-5).
1. Welded joints without beveled edges
Table 1. Calculation of the required number of electrodes for manual welding of structures
| Weld position | Base metal thickness, mm | Gap, mm | Weight Pnm of deposited metal, kg/1 m of weld length |
| 1,0 | 0,0 | 0,02 | |
| 1,5 | 0,5 | 0,02 | |
| 2,0 | 1,0 | 0,03 | |
| 3,0 | 1,5 | 0,05 | |
| 4 | 2,0 | 0,13 | |
| 5 | 2,0 | 0,16 | |
| 6 | 2,5 | 0,21 | |
| 7 | 3,0 | 0,28 | |
| 1,0 | 0,0 | 0,02 | |
| 1,5 | 0,5 | 0,03 | |
| 2,0 | 1,0 | 0,04 | |
| 3,0 | 1,5 | 0,07 | |
| 4 | 2,0 | 0,17 | |
| 5 | 2,5 | 0,20 | |
| 6 | 3,0 | 0,25 | |
| 7 | 3,0 | 0,33 | |
| 4 | 2,0 | 0,07 | |
| 5 | 2,0 | 0,08 | |
| 6 | 2,5 | 0,10 | |
| 7 | 3,0 | 0,13 | |
| 4 | 2,0 | 0,08 | |
| 5 | 2,0 | 0,13 | |
| 6 | 2,5 | 0,14 | |
| 7 | 3,0 | 0,16 |
2. First and back-up pass when welding with a V-shaped connection
Table 2. Calculation of the required number of electrodes for welding a structure with a V-shaped connection
| Weld position | Base metal thickness, mm | Weight of deposited metal, kg/1 m | Electrode diameter, mm |
| Lower | 6—12 | 0,10 | 3,0 |
| Lower | >12 | 0,15 | 4,0 |
| Vertical | >8 | 0,15 | 3,0 |
| Horizontal | >8 | 0,15 | 3,0 |
| Ceiling | >10 | 0,10 | 3,0 |
3. V-shaped one-sided welded joints
Table 3. Calculation of the required number of electrodes for welding V-shaped one-sided welded joints
| Base metal thickness, mm | Gap, mm | Weight of deposited metal, kg/1 m of weld at different bevel angles | ||||
| 4 | 1 | 0,09 | 1,10 | 0,132 | 0,14 | 0,11 |
| 5 | 1 | 0,13 | 0,15 | 0,19 | 0,22 | 0,16 |
| 6 | 1 | 0,17 | 0,20 | 0,29 | 0,30 | 0,24 |
| 7 | 1,5 | 0,26 | 0,30 | 0,38 | 0,44 | 0,33 |
| 8 | 1,5 | 0,31 | 0,37 | 0,47 | 0,55 | 0,44 |
| 9 | 1,5 | 0,38 | 0,44 | 0,59 | 0,69 | 0,51 |
| 10 | 2 | 0,49 | 0,57 | 0,76 | 0,86 | 0,64 |
| 11 | 2 | 0,56 | 0,66 | 0,89 | 1,02 | 0,76 |
| 12 | 2 | 0,65 | 0,77 | 1,05 | 1,23 | 0,89 |
| 14 | 2 | 0,86 | 1,02 | 1,34 | 1,60 | 1,17 |
| 15 | 2 | 0,97 | 1,15 | 1,55 | 1,81 | 1,34 |
| 16 | 2 | 1,04 | 1,23 | 1,75 | 2,02 | 1,46 |
| 18 | 2 | 1,33 | 1,60 | 2,17 | 2,51 | 1,83 |
| 20 | 2 | 1,63 | 1,94 | 2,62 | 3,11 | 2,21 |
| 25 | 2 | 2,46 | 2,94 | 4,00 | 4,76 | 3,34 |
4. Corner joints
Table 4. Calculation of the required number of electrodes for welding fillet joints
| Metal thickness, mm | Seam cross-sectional area, mm2 | Weight of deposited metal, kg/1 m of weld | |||
| 2 | 2 | 0,03 | 0,02 | 0,03 | 0,03 |
| 3 | 4,5 | 0,05 | 0,05 | 0,05 | 0,06 |
| 4 | 8 | 0,07 | 0,07 | 0,07 | 0,08 |
| 5 | 12,5 | 0,10 | 0,11 | 0,11 | 0,13 |
| 6 | 18 | 0,15 | 0,15 | 0,16 | 0,17 |
| 7 | 24,5 | 0,20 | 0,21 | 0,22 | 0,25 |
| 8 | 32 | 0,26 | 0,27 | 0,28 | 0,32 |
| 9 | 40,5 | 0,33 | 0,34 | 0,36 | 0,40 |
| 10 | 50 | 0,40 | 0,42 | 0,44 | 0,50 |
| 11 | 60,5 | 0,49 | 0,53 | 0,57 | 0,62 |
| Metal thickness, mm | Seam cross-sectional area, mm2 | Weight of deposited metal, kg/1 m of weld | |||
| 12 | 72 | 0,58 | 0,62 | 0,66 | 0,73 |
| 15 | 113 | 0,91 | 0,97 | 1,04 | 1,11 |
| 18 | 162 | 0,31 | 1,37 | 1,49 | 1,60 |
| 20 | 200 | 1,62 | 1,62 | 1,78 | 1,98 |
| 22 | 242 | 1,95 | 2,00 | 2,16 | 2,39 |
| 25 | 323 | 2,58 | 2,60 | 2,90 | 3,18 |
5. T-joints
Table 5. Calculation of the required number of electrodes for welding T-joints
| Metal thickness, mm | Seam cross-sectional area, mm2 | Weight of deposited metal, kg/1 m of weld | |||
| 2 | 4 | 0,04 | 0,05 | 0,04 | 0,04 |
| 2,5 | 6,5 | 0,06 | 0,07 | 0,06 | 0,07 |
| 3 | 9 | 0,08 | 0,10 | 0,09 | 0,09 |
| 3,5 | 12,5 | 0,11 | 0,13 | 0,12 | 0,13 |
| 4 | 16 | 0,14 | 0,16 | 0,15 | 0,17 |
| 4,5 | 20,5 | 0,18 | 0,20 | 0,19 | 0,21 |
| 5 | 25 | 0,22 | 0,25 | 0,24 | 0,26 |
| 5,5 | 30,5 | 0,26 | 0,29 | 0,28 | 0,32 |
| 6 | 36 | 0,31 | 0,33 | 0,34 | 0,37 |
| 6,5 | 42,5 | 0,37 | 0,39 | 0,40 | 0,44 |
| 7 | 49 | 0,43 | 0,45 | 0,44 | 0,51 |
| 7,5 | 56,5 | 0,47 | 0,51 | 0,50 | 0,58 |
| 8 | 64 | 0,55 | 0,58 | 0,60 | 0,65 |
| 9 | 81 | 0,69 | 0,74 | 0,75 | 0,86 |
| 10 | 100 | 0,85 | 0,89 | 0,91 | 1,02 |
| 11 | 121 | 1,03 | 1,08 | 1,12 | 1,23 |
| 12 | 144 | 1,22 | 1,27 | 1,33 | 1,48 |
| 13 | 169 | 1,41 | 1,49 | 1,53 | 1,73 |
| 14 | 196 | 1,62 | 1,76 | 1,78 | 2,02 |
| 15 | 225 | 1,86 | 1,95 | 2,07 | 2,31 |
Technology and technique of arc and electroslag welding 1. Welding of low-carbon and low-alloy steels 1.1. Manual arc welding 1.2. Mechanized welding in shielding gases and self-shielding wire 1.3. Automatic submerged arc welding 1.4. Electroslag welding 2. Welding of low-alloy heat-resistant steels 3. Welding of medium-carbon and medium-alloy steels 4. Welding of high-alloy steels and alloys 5. Welding of dissimilar steels []
Technology and technique of arc and electroslag welding 1. Welding of low-carbon and low-alloy steels 1.1. Manual arc welding 1.2. Mechanized welding in shielding gases and self-shielding wire 1.3. Automatic submerged arc welding 1.4. Electroslag welding 2. Welding of low-alloy heat-resistant steels 3. Welding of medium-carbon and medium-alloy steels 4. Welding of high-alloy steels and alloys 5. Welding of dissimilar steels []
pages1. General classification of steels2. Classification of carbon steels3. Marking of steels by purpose 1. General classification of steels Steel is an alloy of iron and carbon (up to 2% carbon). According to the chemical composition, steel is divided into: carbon; alloyed; According to quality, steel is divided into: ordinary quality steel; quality; improved quality; high quality Carbon steel of ordinary quality is divided into three groups: A []
Source: https://extxe.com/4109/raschet-neobhodimogo-kolichestva-jelektrodov-dlja-ruchnoj-svarki/
Calculation of the amount of electrode consumption during welding
Before you start welding, you need to calculate the approximate costs. To do this, you need to know their consumption for surfacing 1 kilogram of metal or how many of them need to be used for welding for 1 hour. By correctly calculating all the costs, you will be able to do the work efficiently and without a large amount of unnecessary purchased products , in this case, welding products.
Calculations must begin with the consumption of a given type of electrode for surfacing 1 kilogram of metal. Then you need to calculate how many kilograms of metal you need to melt. And then you need to calculate all this using the formula and everything will be clear.
So, first you need to find out the consumption of electrodes for surfacing 1 kilogram of metal. In order for you not to run around on various sites, you can see the consumption per 1 kg of deposited metal of the most popular electrodes.
How many electrodes are in a pack?
Now, having found out the consumption of electrodes for surfacing 1 kilogram of metal, you can begin to calculate. So, here is the formula for calculation: H = M * Crash
In this formula, the letters have the following meanings : M is the mass of the metal, Cr is the consumption coefficient of the electrodes. Now, having made the necessary calculations, you can find out how many electrodes you need to use in order to weld a particular product.
Also, in order to reduce costs, you can use automatic or semi-automatic welding. The percentage of losses when using manual arc welding is 5, and when using automatic or semi-automatic, it is 3. Therefore, it is reasonable to conclude that using automatic or semi-automatic welding is more profitable.
Despite the fact that when making calculations you need to be very careful and make them as accurately as possible, you need to remember that these calculations cannot be completely accurate, so when purchasing material you need to buy more welding products, despite the accuracy of the calculations.
Even if you are completely confident in the accuracy of the calculation results, you need to add 5 - 7 percent to the total amount so that you do not have to stop welding and go to the store again. You need to remember that by shopping with a reserve, you can get the job done faster. This principle works in most relationships.
You also need to take into account many other features, so it is impossible to make accurate calculations. Many construction companies successfully use this and other formulas to calculate the consumption of electrodes for welding certain volumes of products. By making the most accurate calculations, you can reduce the time and costs of purchasing welding equipment and welding materials.
Clicking on the photo below will open the original image.
However, you can save even more money by making your purchases from trusted manufacturers. You can find out about them on the “Contacts” page of our website. There you can choose one of the leading manufacturers of electrodes and welding equipment, go to its website and make a purchase.
How to choose electrodes for welding.
Xuper electrodes
Calculator Kilogram to Grams Kilograms Kilogram (symbol: “kg”), also known as kilo, is the main measurement of mass in the International System of Units.
How many grams are in 1 kg???
There are a thousand cubic decimeters in one liter. There are a thousand millimeters in one liter. There are one hundred centimeters in one meter.
Other units of mass
Weight can also be calculated using Newton's second law: P= mg, where m is mass and g is the acceleration due to gravity. One slug is equal to the mass of a body that moves with an acceleration of one foot per second per second when a force of one pound-force is applied to it.
In countries where the metric system is not adopted, the British Imperial system is used. This image shows "soft metric" food packaging with weight in metric units only and volume in both metric and imperial units.
In the International System of Units (SI), mass is measured in kilograms (kg). The kilogram is defined as the mass of the international standard kilogram.
The pud has already lost its meaning in the modern world as a unit of measurement of mass. The first mention of it was in the 12th century. Currently, this unit of measurement is practically not used. Those. if taken in whole, one pood is equal to 16 kilograms.
Pud refers to an ancient measure of mass or weight. Currently, this unit of measurement is no longer relevant. So, to be precise, one pood is 16 kilograms and 380 grams.
To be absolutely precise, 1 pood is equal to 16 kilograms 38 grams.
Electrode weight
We convert this to grams and get 16380 grams. Nowadays this measure of weight is not used, but kilograms are used.
Move the decimal point three places to the left. Find the position of the decimal point in the number representing grams. In our example, the decimal point is to the right of the number 7, so 37 grams can be written as 37.0 grams. To go back to grams, move the decimal point back. Given kilograms, move the decimal point three places to the right and you get grams again.
Translation by calculation
After checking five copies of the kilogram standard made at different times, they found that the weight of the original was 50 micrograms less than the weight of the copies. There are 1000 grams in 1 kilogram. 1 kg = 1000 g. There is a hint in the word “kilogram” itself, let’s divide the word into two parts kilograms, the first part kilo means a thousand. And in other units of measurement, a kilo will mean a thousand. This is exactly what I was taught at school. So I remembered for the rest of my life that there are exactly a thousand grams in one kilogram.
Write down the number of grams. Divide by 1.000. A kilogram contains a thousand grams.
Mass - electrode
Page 3
Unlike an arc, where evaporation occurs in a steady state of heat exchange between the areas exposed to the arc and the entire mass of the electrode, nonequilibrium processes occur in a spark. During a spark discharge, the electrode surface is subjected to short-term action of powerful pulses. The enormous energy released leads to local overheating of the area of the electrode surface on which the discharge cord rests, and the emission of torches.
Reliable contact between the sample and the electrodes and the absence of a gap between them are ensured by a sputtered layer of platinum, thorough treatment of the surface of the electrodes, and constant pressure on the sample from the mass of the high-voltage electrode. The constancy of the gap between the measuring electrode and the guard ring is achieved using mica or micalex rings placed outside the high temperature zone.
To protect batteries from rapid deterioration and destruction, you should not charge and discharge at high current strengths and densities, since in this case, rapid chemical transformations on the electrodes cause rapid, and therefore especially destructive, mechanical changes and loosen the mass of the electrode.
When using batteries, do not allow the voltage to drop below 1–7 V; Once this value is reached, the battery should be turned off and charged again, otherwise the voltage will begin to rapidly drop to zero. Complete discharging and, especially, storing an acid-filled battery in a discharged or almost discharged state are especially harmful because the electrodes are subject to sulfation.
Lead sulfate, initially formed in an amorphous form, is harmless for electrode processes. However, when a discharged battery sits, lead sulfate forms into solid crystalline agglomerates, covering the active mass of the plates with an insulating layer.
An electrode passport is glued onto the pack, which indicates the name or trademark of the manufacturer, the symbol of the electrodes, the batch number and date of manufacture, the scope of application of the electrodes, special conditions for welding or surfacing, permissible moisture content, re-calcination mode, recommended welding mode, mass of electrodes in a box or pack.
In particular, during internal installation, the electrodes of the thermocouple are heated together with the sample, and therefore, using calculation formulas (2 - 27) and (2 - 28), strictly speaking, the total heat capacity of the sample and thermocouple cm - g - f sttt, where tt - mass of thermocouple electrodes located in the area of the sample working area.
Electrode consumption, norms, tables, how to calculate
The equality of the rates of the same electrode reaction in its two opposite directions leads to the fact that in a state of equilibrium no changes occur in either the qualitative or quantitative composition of the system. The nature and mass of the electrode, as well as the composition of the electrolyte, remain unchanged.
The equality of the rates of the same electrode reaction in its two opposite directions leads to the fact that in a state of equilibrium no changes occur in either the qualitative or quantitative composition of the system. The nature and mass of the electrode, as well as the composition of the electrolyte, remain unchanged.
Electrogravimetry is based on the deposition of the element being analyzed on a suspended platinum electrode. Based on the increase in the mass of the electrode, the content of the element in the analyzed sample is calculated.
These strips are made of soft steel strip 15 cm wide and 1 mm thick and are successively welded to the casing on opposite sides as the electrode is consumed. Most of the electrode mass is balanced by Vnsdom tapes. The electrodes are generally suspended using a cable connected to a lifting mechanism driven by a push-button starter. The lifting mechanism is equipped with upper and lower movement limiters.
In the electrogravimetric (or electrogravimetric) method, a specific element is deposited by electrolysis on a suspended electrode. Based on the increase in the mass of the electrode, the content of the element in the analyzed sample is calculated.
In fact, from equation (4) it is clear that if 1 nk on, then we have 4 mek and the anodic reaction of metal oxidation predominates. Consequently, loss of electrode mass will occur if the anodic process is realized by metal ions, and the cathodic process by hydrogen ions or other ions and molecules of the solution, which in this case are called depolarizers.
This makes it possible for the entire mass of electrodes to take part in the redox reaction.
To bring batteries into working condition, the mass of electrodes must be molded. The electrochemical forming process is carried out by charging and discharging the battery. The formation of nickel-iron batteries ends after two charge-discharge cycles, for nickel-cadmium batteries - after 3 - 4, for acid batteries - after 6 - 8 cycles.
Pages: 1 2 3 4
Welding electrodes – Monolith RC diameter 2mm, package 1 kg
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Source: https://shtyknozh.ru/skolko-jelektrodov-v-pachke/
