TGK SPECIAL STEEL PVT. LTD.
HOT WORKING TOOL STEEL PREMIUM GRADE TGE13 (Similar to ORVAR 2M) Excellent heat resistance and crack resistance, quite high tenacity, quite high ductility, favorable isotropic, favorable processability and polishability as well as favorable dimension stability during heat treatment. EAF + LF + VD + ESR SMELTING METHOD MAIN CHARACTERISTICS For various metal pressure casting molds, for example: automobile engine cylinder body, cylinder cover, gearbox shell molds; Hot extrusion molds, mainly for hot extrusion of aluminium profiles; High-quality plastic molds, for example, high abrasion resistance plastic molds for automobiles. Equivalent Grade from BOHLER W302 ISOBLOC MAJOR APPLICATIONS CHEMICAL COMPOSITION (%) S 0.002 < C Cr Mn Mo 0.38 V 0.95 P 1.35 5.0 0.35 0.015 < Si 0.90 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 DELIVERY STATUS < (1) Delivery hardness: delivery under annealing state, delivery hardness 255HB; (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. 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) 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 >300 240 180 150 100 Product Name Specification/mm Material Forged round bar Forged module Rolled round bar Rolled flat bar TGE13 TGE13 TGE13 TGE13 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 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. 22
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