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X5CrNiCuNb16 4 – Martensitic Stainless Steel

X5CrNiCuNb16 4 is a precipitation hardened martensitic stainless steel that offers an excellent corrosion resistance as well being able to withstand high levels of tensile strength.


X5CrNiCuNb16 4
UNS S17400


Element Min Max
C (Carbon) 0.07%
Cr (Chromium) 15% 17%
Cu (Copper) 3% 5%
Mn (Manganese) 1.5%
Mo (Molybdenum) 0.6%
Nb (Niobium) 0.15% 0.45%
Ni (Nickel) 3% 5%
P (Phosphorus) 0.04%
S (Sulphur) 0.03%
Si (Silicon) 1%
Mechanical Properties Min Max
Ultimate Tensile Strength (UTS) 1270 MPa
Elongation 5%


Commonly used within the Automotive, Marine, Food processing, Energy production and  construction industries. Typical applications include but are not limited to; Handing and transfer equipment, Propeller shafts, forgings, fittings, etc.

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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