USA UNS S32808
Corresponding Standard ASTM A959-2019
Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
Classification Duplex Stainless Steel
Properties Corrosion Resistance
Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo N W
Minimum Value - - - - - 27 7 0.8 0.3 2.1
Maximum Value 0.03 0.5 1.1 0.03 0.01 27.9 8.2 1.2 0.4 2.5
• Unless otherwise indicated, a grade designation originally assigned by the American Iron and Steel Institute (AISI).

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