Mat.No. 1.2721, DIN 50NiCr13

Mat.No. 1.2721, DIN 50NiCr13

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Designation by Standards Mat. No. DIN EN AISI 1.2721 50NiCr13 - - Chemical Composition (in weight %) C Si Mn Cr Mo Ni V W Others 0.50 0.25 0.50 1.05 - 3.25 - - - Description Cold work tool steel. Air or oil hardenable steel with good machinability and high toughness. Applications Cold heading dies, hobbing punches, checkering diesm cutlery dies.  Physical properties (avarage values) at ambient temperature Modulus of elasticity [103 x N/mm2]: 210  Density [g/cm3]: 7.87 Thermal ...


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    Designation by Standards

    Mat. No. DIN EN AISI
    1.2721 50NiCr13 - -

    Chemical Composition (in weight %)

    C Si Mn Cr Mo Ni V W Others
    0.50 0.25 0.50 1.05 - 3.25 - - -

    Description
    Cold work tool steel. Air or oil hardenable steel with good machinability and high toughness.

    Applications
    Cold heading dies, hobbing punches, checkering diesm cutlery dies. 

    Physical properties (avarage values) at ambient temperature
    Modulus of elasticity [103 x N/mm2]: 210 
    Density [g/cm3]: 7.87
    Thermal conductivity [W/m.K]: 30.0, 31.2 (at 350oC), 31.8 (at 700oC)

    Soft Annealing
    Heat to 610-650oC, cool slowly in furnace. This will produce a maximum Brinell hardness of 250.

    Stress Relieving
    Stress relieving to remove machining stresses should be carried out by heating to approx. 650oC, holding for 1-2 hours 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 air or oil quenching or warm bath quenching 180-220oC. Hardness after quenching is 59 HRC.

    Tempering
    Tempering temperature: See the data bellow.

    Tempering Temperature (oC) vs. Hardness (HRC)

    100oC 200oC 300oC 400oC 500oC 600oC
    59 56 52 48 44 40

    Tempering Diagram

    Forging
    Hot forming temperature: 1100-850oC. 

    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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