Chemical composition of deposited metal% C SiMnSP ≤0.18 ≤0.90 ≤1.75 ≤0.030 ≤0.030 Mechanical property of deposited metalTensile strengthRm MPaLower yield strength(ReL)MPaElongationA%AKvAverage absorbed energyJ-20≥490≥400≥22≥47 Welding wire diameter and reference current Welding wire diametermm φ1.2φ1.4φ1.6CurrentA 120-300 150-400 180-450