USA UNS S20910
ASTM
Specification or Grade
XM-19
Corresponding Standard ASTM A959-2019
Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
Classification Austenitic Stainless Steel
Properties Corrosion Resistance
Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo N V Nb
Minimum Value - - 4 - - 20.5 11.5 1.5 0.2 0.1 0.1
Maximum Value 0.06 1 6 0.045 0.03 23.5 13.5 3 0.4 0.3 0.3
• Unless otherwise indicated, a grade designation originally assigned by the American Iron and Steel Institute (AISI).

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