| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas shielded arc welding wire for a high Cr ferrite-based heat resistant steel, which has creep strength equivalent to that of a base material as the welding material of a Cr steel, etc., having high strength 9 to 12 and which has sufficient toughness at a room temperature. SOLUTION: There are included per the whole wire weight 0.02-0.15 wt.% C, 0.10-1.00 wt.% Si, 0.30-1.50 wt.% Mn, 0.05-2.0 wt.% Cu, 0.05-1.20 wt.% Ni, 8-13 wt.% Cr, 0.01-1.20 wt.% Mo, 0.03-0.50 wt.% V, 0.02-0.15 wt.% Nb, 0.8-3.5 wt.% W, 0.01-0.08 wt.% N and 0.0008-0.09 wt.% Ti, and the remainder must be Fe and inevitable impurities.
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