对30mm厚EH420钢进行气电立焊(EGW)焊接实验,配套焊丝材料为1.6mm SC-EG3,焊接热输入达247kJ/cm,母材的拉伸性能及焊接接头的-40℃冲击性能均满足要求。
Electrogas Welding(EGW) welding experiment was carried out on 30mm thick EH420 steel, the filler material was 1.6mm SC-EG3, the welding heat input reached 247kJ/cm, the tensile properties of the base metal and the -40°C impact properties of the welded joints met the requirements.