... alloy steel, widely used in industries of vehicles, bridge-engineering, machine-engineering, steel structures, shipping manuf.Mechanical Property: Joint Strength(MPA ... 29 (J)5504303090Chemical Composition: CMnSiSPCuOther0.08%1.52%0.92%0.015%0.020%0.2%≤0.50Package : Dia0.6mm0.8mm0.9mm1.0mm1.2mm1. ... 3023-43Weight/spool(KG)1/5/1015/2015/2015/202020 high quality mig welding wire (ER70S-6) from china