| 摘要 |
PURPOSE:To prevent the generation of the intercrystalline cracking of a weld metal by limiting the contents of Cr, Mo, Si, O, etc., in a wire to specific weight % and incorporating an Li compd., Al2O3, SiO2, etc., at prescribed weight % into a flux. CONSTITUTION:The components in the wire are limited, by weight %, to 0.01-0.15% C, 0.4-2.5% Mn, 8.0-11.0% Cr, 0.5-1.2% Mo, 0.05-1.3% Ni, 0.1-0.5% V, 0.02-0.12% Nb, 0.02-0.10% N, <=0.15% Si, and <=0.01% O. The components in the flux are limited to 25-75% CaF2, 8-30% CaO, etc., 2-30% Al2O3, etc., 1-10% Li compd., and <=15% SiO2 and the total Al contents in both the wire and the flux is limited to 1-5%. Since the Li compd. in the flux prevents the reaction of the Si with the Ni and Mo, the generation of the intercrystalline cracking is prevented. |
