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GB 5CrNi4Mo | DIN 1.2767 | ASTM 6F7 Hot Work Tool Steel

Port: Hu nan

engineering steel, cold work tool steel, hot work tool steel, plastic mold steel, spring steel, high speed steel, stainless steel

Alloy Structural Steel, Alloy Tool Steel, Carbon Structural Steel, Carbon Tool Steel, Bearing Steel, Spring Steel ,Stainless Steel, Refractory Steel, Roll Steel, Pinion Steel. Additionally, the company also has the capacity to forge round steel, steel flat, square steel, module, shaft and roller

E-mail：export@qilucs.com

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    1: DIN 1.2767 steel introduction

        DIN 1.2767 is a higher carbon version of the standard 4.25% nickel oil hardening steel. It is a good quality tool steel that  achieves high impact and compressive strength and is suitable for applications demanding extra wear resistance. With its characteristics of good full harden-ability, good polishability and excellent toughness this cold work tool steel specification is widely used for plastic mould applications.


    2: DIN 1.2767 Steel equivalent
    Country China Japan Germany USA UK
    Standard GB/T 1299 JIS G4404 DIN EN ISO4957 ASTM A681 BS 4659
    Grade 5CrNi4Mo
    		1.2767 6F7

    3: DIN 1.2767 steel chemical composition
    Grade C Si Mn S NI Cr P Mo
    DIN 1.2767 0.40 0.50 0.10 0.40 0.20 0.50 0.03 3.80 4.30 1.20 1.50 0.03 0.15 0.35
    ASTM 6F7 0.40 0.50 0.10 0.40 0.20 0.50 0.03 3.80 4.30 1.20 1.50 0.03 0.15 0.35

    4: DIN 1.2767 steel mechanical properties

        The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.

      

    5: DIN 1.2767 steel overviews

    Size Round Dia 6-1200mm
    Plate/Flat/Block Thickness
    6mm-500mm
    Width
    20mm-1000mm
    Process EAF+LF+VD+Forged+Heat treatment(optional)
    Heat treatment Normalized ; Annealed ; Quenched ; Tempered
    Surface condition Black; Peeled; Polished; Machined; Grinded; Turned; Milled
    Delivery condition Forged; Hot rolled; Cold drawn
    Test Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. 
    Payment terms T/T;L/C;/Money gram/ Paypal
    Trade terms FOB; CIF; C&F; etc..
    Packing  Standard Packages, or as Customers Request
    Delivery time 30-45 days
    Application  DIN 1.2767 tool steel are suitable for forging tools, dies of all sort, shapes and sizes, hot forging and pressing tools for steel and metal. Moulds, bushings, piercers, plastic moulds, cutlery dies, shear blades for heavy gauge material, cutting tools, drawing jaws and highly stressed coining tools, etc..

    6: Heat Treatment
    Forging
        Heat the steel slowly and uniformly to 1050°C. Re heat as necessary and avoid working below 850°C After forging cool slowly in furnace or thermoinsulating material.
    Annealing
        Heat uniformly to 630-650°C. Soak well and cool slowly in the furnace to approximately 600°C then cool in air.
    Stress Relieving
        When dies produced in 1.2767 tool steel are heavily machined, stabilizing is recommended just before finish machining in order to relieve machining strains. Heat to approximately 650°C. Soak well and allow to cool in air.
    Hardening
        Pre heat the tool slowly and uniformly to 650-700°C and thoroughly soak. Continue heating to the final hardening temperature of 840-870°C and allow the component to be heated through. Quench the component in oil or cool in air.
    Tempering
        Slowly heat the 1.2767 tool uniformly and thoroughly at the selected tempering temperatures and hold at heat for one hour per 25mm of total thickness but for a minimum of two hours. Cool in air. 1.2767 tool steel can be hardened by vacuum furnace, gas quench process.
        Temperature [°C] 100 200 300 400 500 600
        Hardness [HRc] 56 54 50 46 42 38
    Heat Treatment
        Heat treatment temperatures, including rate of heating, cooling and soaking times will vary due to factors such as the shape and size of each 1.2767 steel component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult your heat treatment provider for full guidance on heat treatment of tool steels.
    Final Grinding
        Select the correct grade of wheel in consultation with the grinding wheel manufacturer. Ensure the grinding wheel is in good condition by means of a suitable dressing tool. Wet grinding is a preferable option using a copious supply of coolant. If dry grinding is resorted to then use a very soft wheel.


    7: Delivery condition
        For hot forged or hot rolled bar, usually the delivery condition is hot forged or rolled, annealed, rough turned.
        For hot forged plate, usually the delivery condition is hot forged, annealed, milled surface.

        For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.