chemical composition% C SiMnSPCu0.06-0.15 0.80-1.15 1.40-1.85 ≤0.025 ≤0.025 ≤0.20Mechanical property of deposited metal Test item Tensile strength(Rm)MPaLower yield strength(ReL)MPaElongation(A)%AKvAverage absorbed energyJ-20°C -29°C Guaranteed ≥500≥420≥22≥47≥27 Dia and reference current Welding wire diametermm φ0.8 φ1.0φ1.2φ1.6CurrentA 40-140 50-220 80-350 170-550