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Z6 CNNb 18 10 – Austenitic Stainless Steel

Z6 CNNb 18 10 is an austenitic stainless steel that is similar to that of grade 304 with the addition of Columbium to eliminate carbide precipitation and ergo prevent intergranular corrosion. It is ideal for high temperature services and also offers excellent mechanical properties and an outstanding corrosion resistance.


Z6 CNNb 18 10
347 Stainless Steel


Base Element Fe (Iron)

Element Min Max
C (Carbon) 0.06%
Cr (Chromium) 17% 19%
Mn (Manganese) 2%
N (Nitrogen) 0.05%
Nb (Niobium) 1%
Ni (Nickel) 9% 11%
P (Phosphorus) 0.04%
S (Sulphur) 0.015%
Si (Silicon) 0.75%
Mechanical Properties Min Max
Ultimate Tensile Strength (UTS) 530 MPa 730 MPa
0.2% Proof Stress 220 MPa
Elongation 35%

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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