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Steel welding wire
Purpose
Wire of grades 4Si1 and 3Si1 is used in shipbuilding, in car building, in boiler building, in assembly work, in construction for welding metal structures, in the automotive industry, in agricultural engineering.
Diameter
0,8 — 2,0 мм
Steel grades
4Si1, 3Si1
It is used for automatic and mechanized welding and surfacing of carbon and low-alloy structural steels in a protective gas environment (DSTU EN ISO 14175): carbon dioxide (DSTU 4817), argon (DSTU GOST 10157) and a mixture of carbon dioxide and argon, submerged arc welding (DSTU EN ISO 14174).
Wire characteristics
| Wire grade | Wire diameter, mm | Maximum deviations of the wire: | Type of delivery - in coils weight, kg | |
| for welding (surfacing) | for electrodes production | |||
| Low-carbon Sv-08, Sv-08А for electrode production | 0,8 | -0,07 | - | 80 |
| 1,0-1,2 | -0,09 | - | 80 | |
| 1,4 | - | 80; 550±50 | ||
| 1,6 | -0,12 | -0,06 | 80 | |
| 1,8-2,0 | 80; 950±100 | |||
| 2,5-3,0 | -0,09 | 80; 950±100 | ||
| 3,5-6,0 | -0,16 | -0,12 | 80; 950±100 | |
| Alloyed Sv-08G2S | 0,8 | -0,07 | - | 1; 2,5; 5; 15; 18; 80 |
| 1,0-1,4 | -0,09 | - | 1; 2,5; 5; 15; 18; 80 | |
| 1,6-2,0 | -0,12 | - | 15; 18; 80 | |
| Copper-coated Sv-08G2S | 0,8 | -0,07 | - | 1; 2,5; 5; 15; 18; 80 |
| 1,0-1,4 | -0,09 | - | 1; 2,5; 5; 15; 18; 80 | |
| 1,6 | -0,12 | - | 15; 18; 80 | |
| Copper-coated 4Si1 (EN ISO 14341) | 0,8 | -0,04 | - | 1; 2,5; 5; 15; 18; 80 |
| 1,0-1,4 | - | 1; 2,5; 5; 15; 18; 80 | ||
| 1,6 | - | 15; 18; 80 | ||
Chemical composition of steel
| Wire grade | Chemical composition, % | |||||||
| Mn | C | Si | Cr | Ni | S | P | Al | |
| not more | ||||||||
| Low-carbon Sv-08 | 0,35-0,6 | 0,10 | 0,03 | 0,15 | 0,30 | 0,04 | 0,04 | 0,01 |
| Low-carbon Sv-08А | 0,35-0,6 | 0,10 | 0,03 | 0,12 | 0,25 | 0,03 | 0,03 | 0,01 |
| Alloyed Sv-08GS | 1,40-1,70 | 0,10 | 0,60-0,85 | 0,20 | 0,25 | 0,025 | 0,03 | - |
| Alloyed Sv-08G2S | 1,80-2,10 | 0,05-0,11 | 0,7-0,95 | 0,20 | 0,25 | 0,025 | 0,03 | - |
| 4Si1 (EN ISO 14341) | 1,60-1,90 | 0,06-0,14 | 0,80-1,20 | 0,15 | 0,15 | 0,025 | 0,025 | 0,02 |
Mechanical properties of alloyed wire
| Wire diameter, mm | Tensile strength, Mpa (kgs/mm2) | |
| for welding (surfacing) | for electrode production | |
| 0,8-1,5 | 882-1323 (90-135) | - |
| 1,6 | 882-1274 (90-130) | 686-980 (70-100) |
| 2 | 784-1176 (80-120) | 686-980 (70-100) |
| more then 2,0 | 686-1029 (70-105) | 637-931 (65-95) |