| 摘要 |
PROBLEM TO BE SOLVED: To provide a high Ni flux-cored wire for gas shield arc weld, which can provide a weld part excellent in toughness and fatigue strength.SOLUTION: A flux-cored wire includes metal fluoride, containing CaF, of more than 2.0 to 8.0%, and metal oxide of 0.01 to 1.2%. A ratio of contents of the metal fluoride and the metal oxide is 2.0 or more. The content of Fe powder is restricted to less than 5.0%. It also includes C:0.08% or less, Mn:3.5% or less, and Ni:5.0-15.0%, as an alloy component. |
