Chinese (Simplified)

100CrMo7-3 - 1.8% Chromium-Molybdenum High Carbon Steel

Surcharge Information

Due to the UK’s mostly commonly recognised surcharge mechanism no longer being openly published to the UK market we are unable to provide specific surcharge information on our website at this stage.

We are currently working with our suppliers to establish alternative mechanisms in order to provide a comprehensive and transparent view of global surcharge variations.

Look out for our improved surcharge pages appearing in the coming weeks.


100CrMo7-3 grade steel is a high carbon alloy steel commonly supplied in the spherodised annealed condition.

Following machining it is subsequently hardened and lightly tempered to give parts a high surface hardness with a deeper hardened zone than can be obtained with case hardening steels.

It can be oil quenched in small sections and water hardened in larger sections, then subsequently tempered to produce a very hard wear resistance surface in excess of 65HRc.

Typical applications of 100CrMo7-3 grade steel

  • Ball and roller bearings
  • Bearing rings
  • Connecting rods
  • Big end bushes
  • Lathe centres
  • Collets
  • Cams
  • Pawls
  • Small hardened steel cold work rolls
  • Blanking and forming tools
  • Punches
  • Knurling tools
  • Gauges
  • Fuel nozzles
  • Shear blades
  • Bullet cores
  • Instrument pivots
  • Spindles

Share this page


Rolled or Forged


Black Bar or Bright Bar

Similar Grades