FLUX-CORED WIRE FOR ARC WELDING OF STAINLESS STEEL

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PURPOSE : A flux-cored wire for arc welding of stainless steel is provided to prevent the decrease of moisture-absorption resistance since a total amount of Li2O, Na2O and K2O is controlled not to exceed 1.5mass%%.CONSTITUTION : A flux-cored wire for arc welding of stainless steel contains 22.0~30.0mass%% of Cr, 6.0~12.0mass%% of Ni, 2.0~5.0mass%% of Mo, 0.20~0.35mass%% of N, 4.0~9.0mass%% of TiO2, 0.1~2.0mass%% of SiO2, 0.5~4.0mass%% of ZrO2, 0.50~1.50mass%% of Li2O, Na2O and K2O, 0.10~0.90mass%% of metal fluoride, and 0.10~1.00mass%% of rare earth materials. The content of C is limited to below 0.04mass%%. The content of W is limited to below 4.0mass%%. The content of Cu is limited to below 2.0mass%%. The content of Bi2O3 is controlled to below 0.01mass%%.COPYRIGHT KIPO 2011