What is the heat treatment process of alloy steel?
Jul 10, 2023| The heat treatment process of alloy steel is divided into low-carbon alloy steel, medium-carbon alloy steel, and high-carbon alloy steel. Low-carbon alloy steel generally needs to be carburized, quenched, and tempered; medium-carbon alloy steel generally needs to be quenched and tempered. Surface quenching is also carried out as needed; high carbon alloy steel generally requires quenching and tempering. For example: low carbon alloy steel 18CrMnTi, carburized at 920~950°C, oil quenched at 850~870°C, tempered at 180~200°C, surface hardness HRC58~67, core HRC30~45; medium carbon alloy steel 40CrMnMo, 840~850 ℃ oil quenching, 630~650℃ water or oil, hardness HB 302~341; high carbon alloy steel Cr12MoV, 950~1000℃ oil quenching, 150~180℃ tempering, HRC60~64.