Stainless steel flux-cored wire for self-shielded arc welding

摘要

PROBLEM TO BE SOLVED: To provide a stainless steel flux-cored wire for self-shielded arc welding, which has good defect resistance and crack resistance, can obtain a weld metal having excellent toughness, and has good welding workability. SOLUTION: In mass% with respect to the total mass of the wire, the total of the stainless steel outer skin and the flux is C: 0.04% or less, Si: 0.1 to 1.0%, Mn: 0.5 to 3.0%. , Ni: 10-14%, Cr: 22.0 to 25.5%, Mo: 2.0 to 3.0%, Ti: 0.01 to 0.5%, and TiO ₂ in the flux. Total conversion value: 4.0-7.5%, Total SiO ₂ conversion value: 0.2-1.8%, Total ZrO ₂ conversion value: 0.01-0.10%, Al ₂ O ₃ Total conversion value: 0.01 to 0.10%, total Bi conversion value: 0.01 to 0.10%, total Na conversion value and K conversion value: 0.01 to 0.20%, F conversion Total of values: It is characterized by containing 0.1 to 1.0%. [Selection diagram] None