HIGH CR-P-ADDED FERRITIC STAINLESS STEEL EXCELLENT IN WEATHER RESISTANCE AND RUSTING RESISTANCE

摘要

PURPOSE:To produce high Cr-P-added ferritic stainless steel excellent in weather resistance and rusting resistance. CONSTITUTION:This high Cr-P-added ferritic stainless steel contains, by weight, =0.02% C, =1.0% Si, =1.0% Mn, =0.03% S, 20 to 40% Cr, =0.015% N, 0.5% Al and 0.06 to 0.20% P, and the balance Fe with inevitable impurities. Furthermore, the steel may contain one or more kinds among the following groups (1) to (3): (1) =4.0%Mo, (2) one or = two kinds among =1.0% Ti, =1.05 Nb, =1.0% Ta, =1.0% V, =1.0%W, =1.0% Zr and =0.01% B, and (3) one or = two among =1.0% Cu, =5.0% Ni and =1.0% Co.