WELDING MATERIAL FOR LOW ALLOY HEAT RESISTANT STEEL AND WELD METAL

摘要

PROBLEM TO BE SOLVED: To provide a welding material for low alloy heat resistant steel having good reheat cracking resistance and to provide a weld metal.;SOLUTION: This welding material has a composition containing 0.03 to 0.18% C, ≤1% Si, ≤2% Mn, ≤0.03% P, ≤0.03% S, 0.5 to 3.5% Cr, 0.01 to 0.9% Mo, 0.01 to 2% W, 0.005 to 0.4% V, 0.005 to 0.2% Nb, 0.001 to 0.05% Ti, 0.001 to 0.05% Al, 0.0005 to 0.03% N, 0.0005 to 0.03% O(oxygen) and one or both of Cu and Ni by 0.005 to 2% in total and satisfying the inequality of N-(14/47)×Ti ≤0.015.;COPYRIGHT: (C)2002,JPO