USA UNS S30909
ASTM
Specification or Grade
309H
Corresponding Standard ASTM A240/240M-2018
Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet and Strip for Pressure Vessels and General Applications
Classification Austenitic Stainless Steel
Properties Corrosion Resistance
Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni
Minimum Value 0.04 - - - - 22 12
Maximum Value 0.1 0.75 2 0.045 0.03 24 15

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