| 摘要 |
PROBLEM TO BE SOLVED: To provide a low hydrogen coated electrode which is suitable for welding of Cu-Ni-base seashore weather-resistant steels, allows all position welding, makes it possible to obtain good welding workability and imparts the corrosion resistance to flying sea salt particles to the weld metal without impairing the corrosion resistance of base metals. SOLUTION: The low hydrogen coated electrode for the seashore high-weather resistant steels used for manual welding of the Cu-Ni-base seashore weather- resistant steel products contains, by mass % of the coating material, 0.2 to 3.0% Cu, 5.0 to 18% Ni, 2.0 to 15% Si, 0.5 to 5.0% Mn, 35 to 55% CaCO3, and 10 to 21% CaF2 further at need inevitably contains <0.05% Cr and contains 0.5 to 5.0% Ti, 0.1 to 5.0% Al, 0.1 to 5.0% Mo, 0.1 to 2.0% V, 0.1 to 1% Nb and 0.1 to 3.0% W in the composition for coating.
|
