Home | Products | CLARMHB7 – Through hardening steels

CLARMHB7 Through hardening steels

  • Defense

Spécifications

  • EU
    40NiCrMoV15

Typical composition

  • C
    0,4
  • Ni
    3,7
  • Cr
    1,6
  • Mo
    0,9
  • V
    0,3
  • Mn
    0,1

Applications

• Large caliber gun barrels and accessories (breech rings, breech blocks, muzzle brakes, etc…).
• Pressure vessels.
• Mechanical parts in the range of YS 1250 to 1400 N/mm2.

Mechanical properties

• High mechanical characteristics.
• Good impact strength at low temperature.
• High level of hardenability.
• Good characteristics at high temperatures.
• Good temper resistance.

Mechanical features

  • Heat treatment
    T + Rv 560°C
    T + Rv 585°C
  • UTS (N/mm²)
    1480
    1350
  • A (%)
    13
    14
  • Solution treated : H
    Annealed : R
  • Thermo-mechanical treatment : TM
    Quenched and tempered : T+RV
  • Sub-zero treatment : F
    Solution treated and aged : T+RV
CLARMHB7_FR
Download (PDF, 431 KB)

See also

CLARMHB3

  • Defense
Through hardening steels
  • Breech blocks
  • Breech rings
  • Gun barrels
  • Mortars
Spécifications
  • EU : 33NiCrMoV15
Heat treatment
  • T + Rv 560°C
  • T + Rv 615°C
Read more
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