Grade Type 308
USA UNS S30800
Corresponding Standard ASTM A167-1999(R2004)
Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip
Classification Austenitic Stainless Steel
Type 308 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni
Minimum Value - - - - - 19 10
Maximum Value 0.08 0.75 2 0.045 0.03 21 12
Type 308 Mechanical Properties
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Hardness
HBW
≥515 ≥205 ≥40 ≤183
Type308 Corresponding Standards(Same grade name, different standards)

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