| 摘要 |
PROBLEM TO BE SOLVED: To obtain the high toughness of a joining part even in heat processing after welding in a short time and to surely keep a non-defective bead shape, the machining ability and the soundness of a welding part at the same time in a filler wire in order to weld a Co-Mo steel using a laser beam. SOLUTION: This filler wire is contained with 0.010 to 0.120% C, <=0.50% Si, <=1.00% Mn, 0.02 to 0.080% P, 0.010 to 0.060% S, 0.20 to 0.70% Ni, 8.00 to 10.00% Cr, 0.90 to 2.50% Mo, and <=0.0070% O. |
