USA UNS S31640
Other Names
Corresponding Standard SAE J405-2018
Chemical Compositions of SAE Wrought Stainless Steels
Classification Austenitic Stainless Steel
Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo N More
Minimum Value - - - - - 16 10 2 - Cb:10C ~ 1.10
Maximum Value 0.08 0.75 2 0.045 0.03 18 14 3 0.1
Approximate Comparison Table Austenitic Stainless Steel
China United States International Organization for Standardization European Standard
ISC ASTM UNS ISO Numerical Grade EN Numerical Grade
S31678 316Nb
(316Cb)
S31640 X6CrNiMoNb17-12-2 4580-316-40-I X6CrNiMoNb17-12-2 1.4580

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