TGK SPECIAL STEEL PVT. LTD. - HANDBOOK

The Name You Can Trust www.tgkssl.com - 46 - 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 (TG D-3 (DIN-1.2080) Thermal treatment Softening annealing Quenching Tempering Heating to 830~880ºC for heat insulation and cooling slowly 950~980ºC quenching, oil cooling 180~200ºC twice tempering, HRC60~62 Tempering temperature and hardness relation curve CCT curve COLD WORK STEEL