TGK SPECIAL STEEL PVT. LTD. - HANDBOOK

The Name You Can Trust www.tgkssl.com - 61 - 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 (TSFD2) Smelting Method: Intermediate Frequency Furnace  Ladle Furnace  Vacuum Degassing  Spray Forming Main Features: High purity, small size and uniform distribution of carbides, high hardenability, small deformation in heat treatment, good toughness, excellent wear resistance, and long service life. Main application: Chemical Component wt. %: C Si Mn Cr Mo W V P S 1.5 0.35 0.4 12.0 0.75 - 0.75 ≤ 0.03 ≤ 0.015 Ultrasonic Flaw Detection: Flaw Detection Standard: according to SEP 1921-E/e level of flaw detection and GB/T6502- 2008 level 4 of assessment or upon customer-specific requirements. Physical property: Density at (Kg/m 3 ) Specific Heat (J/Kg·K) Elasticity Modulus (N/mm 2 ) Coefficient of linear expansion (×10 -6 K) 20~200 20~400 Thermal Conductivity at 200 (W/m•K) 7.70 450 20 210000 11.3 12.1 Cleanlineness Class A Class B Class C Class D Thin Thick Thin Thick Thin Thick Thin Thick 1.5 1.0 2.0 1.5 1.5 1.0 1.5 1.0  Long-life precision cold stamping die, cold shear die, thread rolling die, imprinting die;  Precision measuring tools, such as advanced gauges;  Long-life cold heading mold;  Roller steel and parts with high segregation requirements. Delivery Status:  Delivery in annealed state, hardness ≤ 255HB.  The inhomogeneity of eutectic carbide is less than or equal to grade 2 or grade 3 for respectively diameter ≤ 200mm or for diameter ≤ 300mm. Φ 115mm Spray Ingot Eutectic Carbide Unevenness: grade 1 Φ 120mm Mold Ingot Eutectic Carbide Unevenness: grade 3 COLD WORK STEEL