USA UNS S33425
Corresponding Standard ASTM A959-2019
Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
Classification Austenitic Stainless Steel
Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo Ti Al
Minimum Value - - - - - 21 20 2 0.15 0.15
Maximum Value 0.08 1 1.5 0.045 0.02 23 23 3 0.6 0.6
• Unless otherwise indicated, a grade designation originally assigned by the American Iron and Steel Institute (AISI).

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