USA UNS S21640
Corresponding Standard ASTM A240/240M-2018
Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet and Strip for Pressure Vessels and General Applications
Classification Austenitic Stainless Steel
Properties Corrosion Resistance
Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo N Nb
Minimum Value - - 3.5 - - 17.5 4 0.5 0.08 0.1
Maximum Value 0.08 1 6.5 0.06 0.03 19.5 6.5 2 0.3 1

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