ER70S-4 is a kind of mild steel copper welding wire, suitable for CO2 gas protective welding. With stable feasibility, good welding seams.
Used for weld high tensile steel at 490N/mm2 grade, low current, usually used for steel 15,20
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|
|Mechanical Properties or Deposited Metal||Yield strengthσ0.2(Mpa)||Tensile strengthσb(Mpa)||Elongationδ5(%)||AKV impact(J)|
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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