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1.2738 HH

1.2738 HH

SKU: 2738 HH
DIN : 40CrMnNiMo8-6-4
EN : -
AISI/SAE : P20 MOD
DESCRIPTION: IT IS THE HARDNESS OF 1.2738 STEEL ( (310-355 HB)). WHILE ITS HIGH HARDNESS, THIS MATERIAL WITH EXCELLENT MACHINABILITY CAN BE INCREASED IN SURFACE HARDNESS BY ITS NITRATION TREATMENT UNDER REQUIRED CONDITIONS.

  • Chemical Composition

     

    C

    cr

    B.C

    mn

    Ni

    0.40

    1.90

    0.20

    1.50

    1.00

    Mechanical PropertiesI

    Hardness of Use

    30-48 HRC

     

  • Heat Treatment Information

    Heat Treatment

    Heat

    Environment

    Hardness

    Soft Annealing

    760 - 800 °C

    Oven

    245HB

    Stress Relief

    500 - 550°C

    Oven

     

    Hardening

    1020 - 1050°C

    Oil - Gas - Air - Hot Bath

    Tempering Curve
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