... <=0.12, Mn 0.30--0.60, Si <=0.35, S <=0.035, P <=0.040 4, It is suitable for ... Products trademarkStandard model controlPhysical and chemical propertiesChemical composition(%)Mechanical PropertiesGBAWSCSiMnSPσb(MPa)σs(Mpa)δ5(%) Low Carbon-steel-ElectrodeJ421E4313E6013≤0.10≤0 ...