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420S37 – Martensitic stainless steel


BS 1554


Element Min Max
C (Carbon) 0.2% 0.28%
Cr (Chromium) 12% 14%
Mn (Manganese) 1%
Ni (Nickel) 1%
P (Phosphorus) 0.04%
S (Sulphur) 0.03%
Si (Silicon) 1%
Mechanical Properties Min Max
Ultimate Tensile Strength (UTS) 780 MPa

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