METHOD FOR PRODUCING HIGH CARBON STEEL SHEET HAVING EXCELLENT WORKABILITY, HARDENABILITY, AND TOUGHNESS AFTER HEAT TREATMENT

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a high carbon steel sheet having excellent workability and stable hardenability, and further having satisfactory toughness after heat treatment.;SOLUTION: In the method for producing a high carbon steel sheet having excellent workability, hardenability, and toughness after heat treatment, steel comprising, by mass, 0.20 to 0.45% C, 0.40 to 1.50% Mn, 0.01 to 0.80% Cr, ≤0.050% Ti, and 0.0003 to 0.0050% B is hot-rolled, is subjected to descaling, is thereafter coated with an Se-Te compound, and is subsequently subjected to spheroidizing annealing.;COPYRIGHT: (C)2006,JPO&NCIPI