TGK SPECIAL STEEL PVT. LTD. - HANDBOOK

The Name You Can Trust www.tgkssl.com - 53 - 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 Smelting method: (1) EAF+LF+VD; (2) electric arc furnace +LF+VD+ESR Main characteristics: Relatively high tenacity, high abrasion performance, little heat treatment dimension deformation, improved coarse carbides and excellent processing performance. Major applications:  Mainly used for precision cold pressing molds: precision punching and cutting of line cutting processing, stamping dies of various applications, etc.  Long-life automobile covered piece molds: inlaid molds of key parts.  cut-off dies, edge rolling dies, wire drawing dies and screw dies. Chemical constituent %: C Si Mn Cr Mo W V P S 0.93 0.95 0.40 7.8 1.90 - 0.25 ≤0.03 ≤0.010 Physical property: Room temperature density (Kg/m 3 ) Specific heat of room temperature (J/Kg·K) 200ºC thermal conductivity (W/m•K) Elastic modulus (N/mm 2 ) Linear expansivity (×10 -6 K) 20~200ºC 20~400ºC 7.85 0.45 20.5 218,000 11.9 12.3 Ultrasonic flaw detection: Electric furnace steel: flaw detection standard: as per SEP1921- D/d flaw detection or GB/T4162 Class B, or as per customer requirements. Electroslag steel: flaw detection standard: as per SEP1921- E/e flaw detection or GB/T4162 Class A, or as per customer requirements. Purity: Electric furnace steel: Class A Class B Class C Class D Fine Coarse Fine Coarse Fine Coarse Fine Coarse 1.5 1.0 2.0 1.5 1.5 1.0 1.5 1.5 Electroslag steel: Class A Class B Class C Class D Fine Coarse Fine Coarse Fine Coarse Fine Coarse 1.0 0.5 1.5 1.0 1.0 1.0 1.5 1.0 Delivery state: (1) Delivery hardness: delivery under annealing state, ≤255HB; (2) Unevenness of eutectic carbide shall comply with BÖHLER standard; Supply specification: Round steel Flat steel Module Ф 1~ 310mm 12~120×200~660mm 120~150×300~600mm COLD WORK STEEL