ER70S-4 Used for weld high tensile steel at 490N/mm2 grade
Description:
ER70S-4 is a kind of mild steel copper welding wire, suitable for CO2 gas protective welding. With stable feasibility, good welding seams.
Application:
Used for weld high tensile steel at 490N/mm2 grade, low current, usually used for steel 15,20
Conform with:
GB/T: ER50-4 BS: A18 DIN: SG2
AWS: ER70S-4 JIS: YGW12
chemical composition of welding wire(%) | C | Mn | Si | P | S | Cr | Ni | Cu |
0.07~0.15 | 1.00~1.50 | 0.65~0.85 | ≤0.025 | ≤0.035 | - | - | ≤0.50 | |
Mechanical Properties or Deposited Metal | Yield strengthσ0.2(Mpa) | Tensile strengthσb(Mpa) | Elongationδ5(%) | AKV impact(J) | ||||
420 | ≥500 | ≥22 | Not Specified |
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WE HAVE HIGH AND LOW TEMPERATURE TEST ,POWER STABILITY TEST ,SHORT CIRCULT TEST,ARC STRIKING TEST ,DROP TEST and we HAVE CE ,TUV ,LR ,DB,ABS,AND SO ON







