| 摘要 |
A flux-cored wire for gas shielded arc welding for creep-resisting steels, in which a flux is filled in a steel sheath and which is used in DC reverse polarity, comprises, based on a total weight of the wire, 1.0 to 5.0 mass % of BaF<SUB>2</SUB>, 0.3 to 3.0 mass % of Al, 0.04 to 0.15 mass % of C, 0.005 to 0.040 mass % of N, 1.0 to 2.7 mass % of Cr, 0.4 to 1.3 mass % of Mo, 0.05 to 0.5 mass % of Si, 0.5 to 1.5 mass % of Mn and 85 to 95 mass % of Fe, Ni being controlled to be at 0.1 mass % or below. This flux-cored wire used as a welding material for creep-resisting steels enables welding in all positions with good toughness and embrittlement characteristics.
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