TGK SPECIAL STEEL PVT. LTD. - HANDBOOK

The Name You Can Trust www.tgkssl.com - 99 - 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 (TGP50) Smelting method: EAF+LF+VD+ESR Main characteristics: Favorable corrosion resistance, abrasion resistance, quenching, cutting performance, and polishability as well as high surface fineness. Major applications:  Production of PVC molds;  Long-life molds;  Molds for disposable tableware;  Production of optics parts, for example, cameras, sunglasses lens, medical vessels, etc. Chemical constituent % C Si Mn Cr Mo W V P S 0.42 ≤1.00 ≤1.00 13.5 - - - ≤0.03 ≤0.005 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 7.8 460 24 220,000 10.9 11.6 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 under annealing state, delivery hardness ≤235HB. Supply specification Round steel Flat steel Module Ф 16~50 0mm 16~120mm×200~810mm 120~500mm×300~1,200mm PLASTIC MOULDS