Wire metal
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Marking of welding wire
In accordance with GOST 2246−70 welding electrodes made from 3 kinds of welding wire, it is alloyed, carbon and high alloy. All in all, the GOST includes 77 brands of wire, and mainly denoted by a combination of numbers and letters.
The amount of carbon contained in the wire (in hundredths %) can be found on the first two digits. Next, in regular order, are denoted by a letter and number title and number (%) of alloying elements. If it does not exceed 1%, the figure is not specified.
The abbreviation SV means welding wire, and an alphanumeric designation. For example, a wire of low carbon si-mn steel which contains… of 1.40 to 1.8% of MP and of 0.60-to 0.85% Si, will be denoted as: SV-08G2S according to GOST 2246−70.
Copper wire is marked with the letter M, bronze — letters to Br. (Br.Cmzs-1), etc.
In the manufacture of electrodes for welding aluminum and aluminum alloys using the wire that is labeled A1, AO, AD1, AMG, HELL, etc., where the number indicates the present amount of impurities (GOST 7871−75).
Steel welding wire is produced according to GOST 10543−75.
Alloying elements and their designations:
Name |
The symbol of the element | In the marking | Name nie |
The symbol of the element | In the marking |
| Aluminium | Al | Yu | Molybdenum | Mo | M |
| Bor | In | R | Nickel | Ni | N |
| Tungsten | W | In | Niobium | Nb | B |
| Vanadium | V | F | Selenium | Se | E |
| Silicon | Si | With | Titan | Ti | T |
| Cobalt | With | To | Chrome | SG | X |
| Manganese | MP | G | Cubic Zirconia | Zr | TS |
If at the end of the stamp there is the letter a, that indicates its high quality, and low content of phosphorus and sulfur. In high alloy steels the designation marks the end of not put.
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Marking is regular steel wire
Packing, marking, transportation and storage rentals are made according to the requirements of GOST 7566 with the following additions: marking, packaging, transportation and storage of the calibrated hire must meet the requirements of GOST 1051, rolled with special surface finish GOST 14955.
Label, calibrated, and calibrated with special surface finish applied to hire additional letters «XB» (cold heading). The outer diameter of a coil of hot-rolled steel should be not more than 1500 mm, the inner is not less than 180 mm.
The uld (linkage stack) — according to GOST 7566.
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