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835M15 - 4.5% Nickel-Chromium-Molybdenum Case Hardening Steel

Surcharge Information

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835M15 grade steel is a 4.5% nickel-chromium-molybdenum case hardening steel which may be carburised and hardened in large sections to produce a hard wear resistance case, and developing a core strength of the order of 1310N/mm ² with good resistance to stock.

Size Range

38mm - 210mm Dia

Typical applications of 835M15 grade steel

  • High duty gears
  • Heavy duty worms
  • Heavy roller bearings
  • Breech mechanisms
  • Small arms components
  • Camshafts
  • Clutch plates
  • Valve rockers

835M15 steel is still often referred to as EN39 steel - its equivalent grade under the previous BS 970: 1955 standard.

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Black Bar or Bright Bar