Patent ID: 6521060
Filing Date: 2003-02-18
Classification: B23K

Abstract:
A filler metal for TIG welding having sufficient hot workability for use as a welding wire, excellent weldability by having the ability to bend a welded joint portion through 180Â° and 0.3 or below crack sensitivity index (10Zr+10B+5Nb+2Y) and being able to produce a welded portion having longer creep rupture time at 1,000Â° C. than 80 percent of the rupture time of a base metal;comprising on a mass basis: C=0.01-0.04% Mn&lE;0.1% Si&lE;0.1% (Mn+Si&lE;0.1%) Cr=17-20% W=20-23% (Cr+W=39Ëœ43%) Ti=0.02-0.1% Zr&lE;0.003% Y&lE;0.015% B=0.0003-0.01% A1&lE;0.1% Mg=0.001-0.05% Nb&lE;0.06% (10Zr+10B+5Nb+2Y&lE;0.3%) the balance being Ni and identical impurities.