TGK SPECIAL STEEL PVT. LTD. - HANDBOOK

The Name You Can Trust www.tgkssl.com - 59 - 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 (1.2767) Smelting process: (1) EAF+LF+VD, (2) EAF+LF+VD+ESR Main characteristics: Nickel cold work tool steel is characterized by good hardenability and toughness; good polishing performance and anti corrosion treatment ability. Main application: Physical property: Density at room temperature (Kg/m 3 ) Specific heat at room temperature (J/Kg·K) Heat conductivity at the temperature of 200 (W/m•K) Elasticity modulus (N/mm 2 ) Coefficient of linear expansion (×10 -6 K) 20~200 20~400 7.84 - 28 - 12.5 13.4 Chemical component %: C Si Mn Cr Mo Ni V P S 0.45 0.35 0.35 1.35 0.25 4.05 ≤ 0.1 ≤ 0.03 ≤ 0.03 Ultrasonic flaw detection: Electric furnace steel: detection standard: conduct flaw detection according to SEP1921-D/d grade, conduct grade assessment of 3 levels according to GB/T6402-2008 or conduct flaw detection according to clients’ requirements. Degree of purity: Electric furnace steel: Electro-slag steel: Class A Class B Class C Class D Fine series Rough series Fine series Rough series Fine series Rough series Fine series Rough series 1.5 1.0 2.0 1.5 1.5 1.0 1.5 1.5 Class A Class B Class C Class D Fine series Rough series Fine series Rough series Fine series Rough series Fine series Rough series 1.0 0.5 1.5 1.0 1.0 1.0 1.5 1.0 Delivery state: (1) delivery under annealing conditions, annealing hardness ≤ 260 HB. Electro slag steel : detection standard: flow detection shall conform to SEP1921-E/e grade, conduct grade assessment of 4 levels according to GB/T6402-2008 or conduct flaw detection according to clients’ requirements. Hot-forging die for metal processing and tool for extrusion; Molds with various shapes and dimensions; Mold, axis sleeve, core rod, etc. COLD WORK STEEL