| 摘要 |
PURPOSE: A titania based flux charging wire for gas-shielded arc welding is provided to obtain high welding workability and to secure low temperature impact characteristics and crack resistance of welded metal in thick plate welding. CONSTITUTION: A titania based flux charging wire for gas-shielded arc welding is composed of C:0.015-0.12%, TiO2: 4.5-10.5%, Mn: 0.7-2.5%, Si: 0.1-0.8%, B: 0.002-0.03%, Ni: 0.25-3.5%, Ti:0.06-0.8%, Al: 0.03-0.25%, Mg: 0.15-1.5%, P: 0.08% or less, S: 0.08% or less, the remainder Fe in a forced outer cover and in flux, and inevitable impurities, as wt% of the entire wire weight. [Reference numerals] (AA) -40°C impact value(Joules); (BB) T value
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