440C

440C is a 400 series stainless steel, and is the highest carbon content from 400 stainless steel series. It is usually heat treated to reach hardness of 58–60 HRC. It is a bearing steel, and used in rolling contact stainless bearings, e.g. ball and roller bearings. it is also used to make knife blades.

Composition

440C has a carbon (C) content of 0.95–1.20%, chromium (Cr) content of 16.00–18.00%, molybdenum (Mo) content of 0.75%, Manganese (Mn) content of 1.0%, and silicon content of 1.0%.^[1]

References

↑ "AISI 440C Knife Steel Composition Analysis Graph and Information Details". Retrieved 5 August 2013.

SAE International

Organizations	Association of Licensed Automobile Manufacturers FISITA SAE India Société des ingénieurs de l'automobile

Standards	ARP4754 ARP4761 AS9000 AS9100 SAE J1587 SAE J1708 SAE J1772 SAE J1939 SAE J2452 SAE controls

Awards	Wright Brothers Medal

People	Andrew L. Riker Henry Ford

Competitions	Baja SAE Formula SAE SAE Aerodesign SAE Supermileage Competition

Related	Engineering Societies' Building and Engineers' Club SAE steel grades SAE 304 SAE 316 SAE 440C

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