GH4 Through hardening steels

  • Aerospace

Spécifications

  • EU
    40CrMoV13-9

Typical composition

  • C
    0,4
  • Cr
    3
  • Mo
    1
  • V
    0,2

Applications

• This steel may be used to produce nitrided parts.
• Parts for the aerospace industry subjected to high stresses.
• This steel is mainly used at a tensile strength of 1400 N/mm2.

Mechanical properties

• High mechanical strength.
• High hardenability.
• For very thin parts or delicate shapes this grade may be air hardened.
• It may be nitrided in the heat treated condition to obtain a strength from 900 N/mm2 to 1400 N/mm2.

Mechanical features

Heat treatmentUTS (N/mm²)A (%)KCU (J/cm²)
T + Rv 200°C19501060
T + Rv 600°C14001365
  • Solution treated : H
    Annealed : R
  • Thermo-mechanical treatment : TM
    Quenched and tempered : T+RV
  • Sub-zero treatment : F
    Solution treated and aged : T+RV
GH4_GB
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