| 摘要 |
PROBLEM TO BE SOLVED: To provide Ni-based alloy weld metal excellent in all of high-temperature crack resistance, tensile strength and corrosion resistance even in high heat input welding, a strip electrode and a welding method.SOLUTION: Weld metal includes 28.0-31.5 mass% Cr, 7.0-11.0 mass% Fe, 1.5-2.5 mass% in total of Nb and Ta, 0.015-0.040 mass% C, 0.5-4.0 mass% Mn, 0.005-0.080 mass% N, and 0.70 mass% or less (excluding 0) Si. The weld metal has a composition regulated to 0.50 mass% or less Al, 0.50 mass% or less Ti, 0.50 mass% or less Mo, 0.50 mass% or less Cu, 0.0010 mass% or less B, 0.0010 mass% or less Zr, 0.10 mass% or less Co, 0.015 mass% or less P, and 0.015 mass% or less S, with the balance being Ni and inevitable impurities. |
