Stainless Steel
Superaustenitic 904L

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Specifications (ASTM/ASME)
Alloy UNS Designation Material
Specification
Tubing
Specification
Pipe
Specification
904L N08904 A 240/SA-240 A 249/SA-249 A 312/SA-312
      A 269 ---
Chemical Composition (%)
Alloy 904L
UNS Designation N08904
Carbon (C) max. 0.020
Manganese (Mn) max. 2.00
Phosphorus (P) max. 0.045
Sulfur (S) max. 0.035
Silicon (Si) max. 1.00
Chromium (Cr) 19.0 - 23.0
Nickel (Ni) 23.0 - 28.0
Molybdenum (Mo) 4.0 - 5.0
Nitrogen (N) max. 0.10
Copper (Cu) 1.0 - 2.0
Iron (Fe) Balance
Typical Physical & Mechanical Properties - Annealed Condition (Room Temperature)
Alloy UNS Designation Minimum Tensile Strength
Minimum Yield
Strength
0.2% Offset
Minimum Percent (%)
Elongation in
2 inches (50.8 mm)
(psi) (MPa) (psi) (MPa)
904L N08904 71,000 490 31,000 215 35

 

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