| 摘要 |
PROBLEM TO BE SOLVED: To provide a weld material for ferrite heat-resistant steel which makes it possible to improve mechanical characteristics of weld metal without time-consuming welding and has excellent weld workability.SOLUTION: Produced is a weld material for ferrite heat-resistant steel having a chemical composition comprising C: 0.05-0.15 mass%, Si: 0.01-1.00 mass%, Mn: 0.2-2.0 mass%, Cr: 8.0-14.0 mass%, Ni: 0.1-1.0 mass%, Mo: 0.1-0.7 mass%, Ta: 0.26-0.60 mass%, V: 0.1-0.7 mass%, W: 0.2-2.5 mass%, Cu: 0.76-2.0 mass%, N: 0.001-0.08 mass%, B: 0.0100 mass% or less, P: 0.010 mass% or less, S: 0.010 mass% or less, O: 0.07 mass% or less, Al: 0.02 mass% or less, Ti: 0.02 mass% or less, Ca: 0.01 mass% or less, and Mg: 0.01 mass% or less, with the balance being Fe. |
