USA UNS S32900
AISI
American Iron and Steel Institute
329
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 Duplex Stainless Steel
Properties Corrosion Resistance
Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo
Minimum Value - - - - - 23 2 1
Maximum Value 0.08 0.75 1 0.04 0.03 28 5 2
Mechanical Properties
condition Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Hardness
HBW
Thick plates, thin plates, strip products ≥620 ≥485 ≥15 HBW: ≤269
HRC: ≤28
Approximate Comparison Table
Japan United States International Organization for Standardization European Standard
JIS AISI UNS ISO Numerical Grade Numerical Grade
SUS329J1 329 S32900 X6CrNiMo26-4-2 4480-329-00-U (1.4480)

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