| 摘要 |
The invention is directed to a weld joint comprising both a base material and a weld metal both having a chemical composition including C: 0.01-0.45%, Si: more than 1%, 4% or less, Mn: 0.01-2%, P: 0.05% or less, S: 0.01% or less, Cr: 15-35%, Ni: 40-78%, Al: 0.005-2%, N: 0.001-0.2% and Cu: 0.015-5.5% in mass percent, further including Ti satisfying the following formula (1), and the balance being Fe and impurities. Both the material and the weld metal may further include one or more kinds of Co, Mo, Ta, W, V, Zr, Nb, Hf, B, Ca, Mg, and REM. { Si - 0.01 / 30 } + 0.01 �¢ Cu ‰ Ti ‰ 5
wherein a symbol of an element in formula (1) means a content of the element (mass percent). |
