SGT chemical composition of elements C Si Mn Cr WPS content 0.93-1.00 0.15-0.50 0.90-1.20 0.50-1.00 0.50-1.00 ≤0.025 ≤0.010 SGT SGT die steel cutting overview excellent common cold die steel; has good mechanical processing performance, heat stability performance, size small deformation, better abrasion resistance, with good edge retention. Large mold parts EDM during heat treatment and attention to prevention deformation and cracking. SGT hardness Factory Factory state: Soft annealing to about HB190 SGT hardening heat treatment: the first warm 550-650 ℃, and then heated to 800-850 ℃, quenching and tempering in oil: heating to 150-200 ℃, the temperature stays and in still air cooling Hardness: HRC60 ℃ above forging: 1050-850 ℃ annealing: heating to 750-800 ℃, stay at this temperature for 1-3 hours, allowed to cool gradually SGT use this steel after heat treatment in a furnace with easy deformation of features, suitable for manufacturing precision engineering, precision instruments, precision measuring tools, suitable for manufacturing reamers, milling cutters, rollers, cold cable model, model (Gauge) like mold, punch, cold cutting device, scissors, tungsten knives, woodworking tools, spiral mold, hand mirror, taps, dies and other variety.