USA UNS S31100
ASTM
Specification or Grade
XM-26
Corresponding Standard ASTM A959-2019
Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
Classification Duplex Stainless Steel
Properties Corrosion Resistance Machinability Weldability
Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Ti
Minimum Value - - - - - 25 6 -
Maximum Value 0.06 1 1 0.045 0.03 27 7 0.25
• Unless otherwise indicated, a grade designation originally assigned by the American Iron and Steel Institute (AISI).

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