| 摘要 |
PROBLEM TO BE SOLVED: To provide a solid wire for gas shield arc welding of a thin steel sheet for providing an excellent bead shape without melting-down, by reducing a sputter generation amount, by stabilizing an arc particularly in welding of the thin steel sheet, by using for CMT welding.SOLUTION: The solid wire for gas shield arc welding of a thin steel sheet is used for welding for controlling feeding and current-carrying of a wire between a molten pool and a contact tip, and includes C:0.05-0.12%, Si:0.5-1.0%, Mn:1.2-1.8%, and Cu:0.1-0.3% in mass% to the wire total mass, and is composed of P:0.030% or less, S:0.010% or less, N:0.010% or less, O:0.010% or less and a residual part of Fe and an inevitable impurity. A value A in a formula A=Cu+(S+0.5 N+O)×10/(Si+0.5Mn) is two or less. |
