DIN8555.:W/MSG 6-GZ-60-SMaterial No.:1.4718 CSiMnCr 0.530.59.5 焊态 ~54-60HRC800℃退火 ~250HB1000℃淬火/油冷 ~62HRC非合金上堆焊一层~53HRC(操作要点:打磨焊接区至金属颜色,母材为工具钢时预热至450℃) MAG丝