TGK SPECIAL STEEL PVT. LTD.

HOT WORKING TOOL STEEL PREMIUM GRADE TGGP13 (Similar to ORVAR SUPREME) High ductility, high thermal fatigue resistance, high thermal erosion resistance, high isotropic property, high purity and small heat treatment distortion. EAF + LF + VD + ESR SMELTING METHOD MAIN CHARACTERISTICS  Long-life Al, Mg and Zn alloy pressure casting molds, for example: automobile engine cylinder body, cylinder cover, gearbox shell molds.  Large-scale hot extrusion molds: for example, aluminium alloy extrusion molds for high-speed rails and metros.  Precise hot forging molds: for example, automobile engine crankshaft and connecting rod molds; gear molds of gear boxes. Equivalent Grade from UDDEHOLM / ORVAR SUPREME MAJOR APPLICATIONS CHEMICAL COMPOSITION (%) S 0.001 < C Cr Mn Mo 0.39 V 1.0 P 1.45 5.3 0.4 0.009 < Si 1.1 O 20 ~ 400 C Room temperature 3 density (Kg/m ) 7.80 Specific heat of room temperature (J/Kg.K) O 200 C thermal l conductivity (W/mK) Elastic mouldus 2 (N/mm ) -6 Linear expansivity (x10 K) 430 22 215,000 11.3 11.9 O 20 ~ 200 C PHYSICAL PROPERTY ULTRASONIC FLAW DETECTION As per SEP1921: E/e flaw detection or GB/T4162 Class AA flaw detection, i.e., flat bottom hole 1mm, no flaw detection noise wave shall appear or please comply with customer regulation. Specification (diameter, thickness mm) Average impact power at the center part not less than (J) Minimum impact power per sample not less than (J) >60~300 >300 300 300 250 200 Product Name Specification/mm Material Forged round bar Forged module Rolled round bar Rolled flat bar TGGP13 TGGP13 TGGP13 TGGP13 71~810 (120~400) x (300~800) 14.5~70 (12~120) x (200~810) SUPPLY SPECIFICATION Softening annealing Quenching Tempering O Heating to 850 C for heat insulation; O O cooling to 600 C at 10 C/h air cooling O 1020~1040 C quenching; high-speed gas quenching or hot oil cooling Selecting tempering temperature according to hardness requirements; please conduct tempering O for 3 times; prevent tempering under 425~550 C THERMAL TREATMENT < DELIVERY STATUS (1) Delivery hardness: delivery under annealing state, delivery hardness 229HB; (2) Organization state and impact power requirement: the organization and segregation shall comply with North American Die Casting Association No. 207 criterion; (3) Impact power sample: please sample according to the central part of steel. The samples shall be treated according to criteria in North American Die Casting Association, making sure that hardness of samples at 45±2HRC. Dimension of sample: 7*10*55. Gapless. Coarse 0.5 Class A 0.5 0 Class B Class C Class D Fine Coarse Fine Coarse Fine Coarse Fine 1.0 0.5 0.5 0 1.0 PURITY Austenite temperature: O 1020 C, heat insulation for 30min CCT curve Quenching temperature and hardness relation curve Tempering temperature and hardness relation curve Hardness (HRC) 23