| 摘要 |
PURPOSE:To improve the resistances to embrittleness with age and high temp. cracking of a welding material by specifying the chemical components of a wire. CONSTITUTION:This wire has the compsn. which contains, by wt%, 0.02-0.18 C, 0.03-0.70 Si, 1.55-2.50 Mn, 8.0-11.0 Cr, 1.50-2.20 Mo, <=1.5 Ni, and 0.004-0.060 N, contains further >=1 kinds among 0.005-0.15% Nb, 0.005-0.05 V and 0.005-0.20 Ti, satisfies the relation of <=3.10 (Mo+Ni), and consists of the balance Fe. The chemical components of the wire are limited in the above-mentioned manner, by which the wire having the outstanding welding metal performance, and particularly the excellent resistance to embrittleness with age and high temp. cracking is obtd. with the excellent welding workability. |
