| abstract |
(57) [Summary] [Objective] To provide a non-plated wire for arc welding which can sufficiently satisfy characteristics such as wire feedability, chip-wire energization stability and rust resistance. [Constitution] The flux-cored wire has an apparent surface area Sm and an actual surface area S a, the specific surface area defined by the following mathematical formula is 0. 005 to 0.035 and 0.0 on the surface. 04 to 0.24 g / m 2 of molybdenum disulfide is attached. Specific surface area = (Sa / Sm) -1 Further, the solid wire has a specific surface area of 0.0005 to 0.05, and the surface thereof has a surface area of 0.001 to 0. 5 g / m 2 of molybdenum disulfide is attached. |