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AISI 440C – Martensitic Chromium Stainless Steel

AISI 440C is a martensitic chromium stainless steel that offers a good resistance within domestic and industrial environments including fresh water, petroleum based substances, mild acids etc.




Base Element Fe (Iron)

Element Min Max
C (Carbon) 0.95%% 1.2%
Cr (Chromium) 16% 18%
Mn (Manganese) 1%
Mo (Molybdenum) 0.4% 0.8%
P (Phosphorus) 0.04%
S (Sulphur) 0.03%
Si (Silicon) 1%
Mechanical Properties Min Max
Hardness (Brinell) 285 HB


Typical applications of AISI 400C include but are not limited to; gage blocks, cutlery, valve components, ball bearings and measuring instruments.

Information is given for illustrative purposes only. Tachart accepts no responsibility for the accuracy of the data contained within or the use of the data by any other party.
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