PRODUCTION OF HIGH STRENGTH STEEL

摘要

PROBLEM TO BE SOLVED: To provide a method for producing high strength steel capable of producing the high strength steel by heat treatment in a short time. SOLUTION: Steel having a compsn. contg., by weight, 0.60 to 0.70% C, <=0.35% Si, 0.60 to 0.80% Mn, 12.50 to 13.50% Cr and the balance Fe with inevitable impurities is heated to a quenching temp. by induction-heating and this heated steel is rapidly cooled.