Bearing Steels - Ovako 803F

Ovako 803F

100Cr6 type (SAE 52100) is used mainly for small and medium-sized bearing components. 803F is one of many versions of 100Cr6, all of which offer high fatigue strength and hardness and reasonable wear resistance. In particular 803F provides all the properties of standard 100Cr6 with a controlled sulphur content for consistent machining properties.

Chemical Composition

Spec: Ovako 803F

Chemical Element % Present
Carbon (C) 0.0 - 0.97
Manganese (Mn) 0.0 - 0.35
Silicon (Si) 0.0 - 0.27
Sulphur (S) 0.0 - 0.02
Chromium (Cr) Balance




Mechanical PropertyValue
Hardness Rockwell C 60 HRC

Alloy Designations


100 C 6

100 Cr 6

2 S.135



Supplied Forms

  • Bar
  • Rod


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Datasheet Search

Last Datasheet Revision

18 July 2019


This Data is indicative only and as such is not to be relied upon in place of the full specification. In particular, mechanical property requirements vary widely with temper, product and product dimensions. All information is based on our present knowledge and is given in good faith. No liability will be accepted by the Company in respect of any action taken by any third party in reliance thereon.

Please note that the 'Datasheet Update' date shown above is no guarantee of accuracy or whether the datasheet is up to date.

The information provided in this datasheet has been drawn from various recognised sources, including EN Standards, recognised industry references (printed & online) and manufacturers’ data. No guarantee is given that the information is from the latest issue of those sources or about the accuracy of those sources.

Material supplied by the Company may vary significantly from this data, but will conform to all relevant and applicable standards.

As the products detailed may be used for a wide variety of purposes and as the Company has no control over their use; the Company specifically excludes all conditions or warranties expressed or implied by statute or otherwise as to dimensions, properties and/or fitness for any particular purpose, whether expressed or implied.

Advice given by the Company to any third party is given for that party’s assistance only and without liability on the part of the Company. All transactions are subject to the Company’s current Conditions of Sale. The extent of the Company’s liabilities to any customer is clearly set out in those Conditions; a copy of which is available on request.