USA UNS S39274
Corresponding Standard ASTM A511/A511M-2020
Seamless Stainless Steel Mechanical Tubing and Hollow Bar
Classification Duplex Stainless Steel
Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo N W
Minimum Value - - - - - 24 6 0.2 2.5 0.24 1.5
Maximum Value 0.03 0.8 1 0.03 0.02 26 8 0.8 3.5 0.32 2.5
Mechanical Properties
Heat Treatment or Condition
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Hardness
HBW
Annealing ≥800 ≥550 ≥15 ≤310

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