USA UNS S34800
AISI
American Iron and Steel Institute
348
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 Co Ta More
Minimum Value - - - - - 17 9 - - Nb:10C~1.10
Maximum Value 0.08 1 2 0.045 0.03 19 12 0.2 0.1
• Unless otherwise indicated, a grade designation originally assigned by the American Iron and Steel Institute (AISI).

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