Stainless Steel
Superaustenitic INCOLOY® 25-6MO®

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Specifications (ASTM/ASME)
Alloy UNS Designation Material
Specification
Tubing
Specification
Pipe
Specification
25-6MO® N08926 A 240/SA-240 A 249/SA-249 A 312/SA-312
      A 269 B 673
      A 270 ---
      B 674 ---
Chemical Composition (%)
Alloy 25-6MO®
UNS Designation N08926
Carbon (C) max. 0.020
Manganese (Mn) max. 2.00
Phosphorus (P) max. 0.030
Sulfur (S) max. 0.010
Silicon (Si) max. 0.50
Chromium (Cr) 19.0 - 21.0
Nickel (Ni) 24.0 - 26.0
Molybdenum (Mo) 6.0 - 7.0
Nitrogen (N) 0.15 - 0.25
Copper (Cu) 0.5 - 1.5
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)
25-6MO® N08926 94,000 650 43,000 295 35

INCOLOY® 25-6MO® is a registered trademark of Special Metals Corporation group of companies.

 

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