It is low alloy which is superior in strength at elevated temperature heat resisting steel

摘要

PROBLEM TO BE SOLVED: To provide a low-alloy heat resistant steel superior in a high- temperature strength, which copes with a higher-temperature and higher-pressure condition of steam, without containing a large quantity of Cr.;SOLUTION: The low-alloy heat resistant steel superior in a high-temperature strength comprises, by mass%, 0.01-0.05% C, 0.1-0.6% Si, 0.1-0.5% Mn, 0.5-1.5% Cr, 0.03-0.1% Ti, 0.001-0.005% B, one or more selected from 0.2-0.7% Mo and 0.4-1.4% W, and the balance Fe.;COPYRIGHT: (C)2004,JPO