Mat.No. 1.2767, DIN X45NiCrMo4

Mat.No. 1.2767, DIN X45NiCrMo4

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  Designation by Standards   Mat. No. DIN EN AISI 1.2767 X45NiCrMo4 40NiCrMoV16 -   Chemical Composition (in weight %)   C Si Mn Cr Mo Ni V W Others 0.45 0.25 0.35 1.35 0.25 4.05 - - -   Description Nickel cold work tool steel. Goof hardenability and thougness. Ability for polishing, photoetching and erosion treatment. Applications Forging tools, dies of all sort, shapes and sizes, hot forging and pressing tools for steel and metal. Moulds, bushings, p...


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    Designation by Standards

     

    Mat. No. DIN EN AISI
    1.2767 X45NiCrMo4 40NiCrMoV16 -

     

    Chemical Composition (in weight %)

     

    C Si Mn Cr Mo Ni V W Others
    0.45 0.25 0.35 1.35 0.25 4.05 - - -

     

    Description
    Nickel cold work tool steel. Goof hardenability and thougness. Ability for polishing, photoetching and erosion treatment.

    Applications
    Forging tools, dies of all sort, shapes and sizes, hot forging and pressing tools for steel and metal. Moulds, bushings, piercers, etc.

    Physical properties (avarage values) at ambient temperature
    Density [g/cm3]: 7.84
    Thermal conductivity [W/m.K]: 28.0

    Coefficient of Linear Thermal Expansion 10-6 oC-1

     

    20-100oC 20-200oC 20-300oC 20-400oC 20-500oC 20-600oC
    11.7 12.5 13.0 13.4 13.7 13.8

     

    Continuous Cooling Transformation (CCT) Diagram

    Time-Temperature Transformation (TTT) Diagram

    Soft Annealing
    Heat to 610-850oC, cool slowly in furnace. This will produce a maximum Brinell hardness of 262.

    Stress Relieving
    Stress relieving to remove machining stresses should be carried out by heating to 650oC, holding for one hour at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.

    Hardening
    Harden from a temperature of 840-870oC followed by oil. air or warm bath (180-220oC) quenching. Hardness after quenching is 56 HRC.

    Tempering
    Tempering temperature: 150-400oC.

    Tempering Temperature (oC) vs. Hardness (HRC)

     

    100oC 200oC 300oC 400oC 500oC 600oC
    56 54 50 46 42 38

     

    Tempering Diagram


    Click the image to enlarge the diagram.

    Forging
    Hot forming temperature: No data.

    Machinability
    No data.

    Disclaimer
    The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other puposes. There is no representation that the recipient of this literature will receive updated editions as the become available.

     

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