TGK SPECIAL STEEL PVT. LTD. - HANDBOOK

The Name You Can Trust www.tgkssl.com - 54 - 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 (TGX6) DC53 Thermal treatment Softening annealing Quenching Tempering Heating to 850ºC for heat insulation; cooling to 650ºC at 10ºC/h for air cooling 1,030~1,050 quenching gas cooling and oil cooling (Simple shape) Low temperature tempering: 180~200, tempering for twice High temperature tempering: 500~550, tempering for twice Quenching temperature and hardness relation curve Tempering temperature and hardness relation curve Austenite temperature: 1,030ºC, heat insulation for 30min CCT curve COLD WORK STEEL