TGK SPECIAL STEEL PVT. LTD. - HANDBOOK

The Name You Can Trust www.tgkssl.com - 80 - Descriptions and data in the file are typical cases. We will not make guarantee for them. Besides, we reserve the final right to interpret improvement in materials, quality and/or performance. Steel grade (H10) Thermal treatment Softening annealing Quenching Tempering Heating to 780~810ºC for heat insulation and cooling in the furnace 1,030~1,060ºC high-speed gas quenching or hot oil cooling Selecting tempering temperature according to hardness requirements; please conduct tempering for 3 times; prevent tempering under 450~550ºC Quenching temperature and hardness relation curve Tempering temperature and hardness relation curve CCT curve Quenching temperature (ºC) Hardness (HRC)