TGK SPECIAL STEEL PVT. LTD.

COLD WORKING TOOL STEEL 1.2767 THERMAL TREATMENT Softening annealing Quenching Tempering O Heating to 610~850 C carry out heat preservation and cooling in furnace O Hardening temperature is 840~870 C carry out air cooling Select tempering temperature as per clients requirement Nickel cold work tool steel is characterized by good harden ability and toughness; good polishing performance and anti corrosion treatment ability. 1) EAF + LF + VD + 2) EAF + LF + VD + ESR SMELTING METHOD MAIN CHARACTERISTICS O 20 ~ 400 C Density at room 3 temperature (Kg/m ) 7.84 Specific heat of room temperature (J/Kg.K) Heat conductivity at the temperature of O 200 C (W/m-K) Elastic mouldus 2 (N/mm ) -6 Coefficient of Linear expansion (x10 K) *** 28 *** 12.5 13.4 O 20 ~ 200 C PHYSICAL PROPERTY 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. Electro slag steel: detection standard: flow detection shall confirm to SEP1921-E/e grade, conduct grade assessment of 4 levels according to GB/T6402-2008 or conduct flaw detection according to clients' requirements. MAJOR APPLICATIONS  Hot-forging die for metal processing and tool for extrusion;  Mold with various shapes and dimensions;  Mold, axis sleeve, core rod, etc. CHEMICAL COMPOSITION (%) C Mo Mn P Ni 0.45 V S 4.05 0.25 0.35 0.03 Si 0.35 Cr 1.35 0.03 0.1 DEGREE OF PURITY Rough series Class A Class B Class C Class D Fine series Rough series Fine series Rough series Fine series Rough series Fine series 1.5 1.5 1.0 2.0 1.5 1.5 1.0 1.5 Rough series Class A Class B Class C Class D Fine series Rough series Fine series Rough series Fine series Rough series Fine series 1.0 1.0 0.5 1.5 1.0 1.0 1.0 1.5 ELECTRIC FURNACE STEEL ELECTRO SLAG STEEL DELIVERY STATE 1) delivery under annealing conditions, annealing hardness 260HB; SPECIFICATION OF SUPPLY ROUND BAR MODULE ≤ 500mm THICKNESS 300mm, width 800 ≤ ≤ 37