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Product Information

Super Austenitic 825 Pipe and Tubing


  Size   Standard Tolerances
Products OD Wall Lengths and/or coils Grades OD Wall Lengths
Pressure & Corrosion Tubing

Meets or exceeds requirements for welded

Specifications: ASTM-B704, ASME-SB704, ASTM-B705, ASME-SB705

1/16" (1.59 mm) to 4" (101.6 mm)

Metric sizes available

0.010" (0.25 mm) to 0.220" (5.59 mm) Random or cut lengths up to 40' (12.9 m)

Coils to 1-1/2" OD

825
<5/8" (15.9 mm) ±0.005" (0.127 mm)
5/8" to 1-1/2" ±0.007"
>1-1/2" (38.1 mm) to 3" (76.2 mm) ±0.010" (0.25 mm)
>3" (76.2 mm) to 4" (101.6 mm) ±0.015" (0.38 mm)
±15% ±12.5% Randoms up to +2" (50.8 mm)

Cuts +1/8" (3 mm) -0"

Coils to 80,000' (24,384 m)


Physical Properties of Super Austenitic 825 Alloys in the Annealed Condition at -20°F to +100°F


      Tensile Strength Yield Strength      
Alloy UNS Designation Spec. psi MPa ksi psi MPa ksi Elongation in 2 inches (min.) % Grain Size Req. Max. Hardness Modulus of Elasticity (x106 psi) Mean Coefficient of Thermal Expansion (IN./IN./°F x 10-6) Thermal Conductivity (BTU-in/ft2-h-°F)
825 N08825 B704, B705 85,000 586 85 35,000 240 35 30 28.0 7.7 77

Composition of Super Austenitic 825 tubing and pipe


Grade 825
UNS Designation N08825
Nickel (Ni) 38.0–46.0
Chromium (Cr) 19.5–23.5
Iron (Fe) 22.0 Min.
Molybdenum (Mo) 2.5–3.5
Titanium (Ti) Max. 0.6–1.2
Aluminum (Al) Max. 0.2
Cobalt (Co) Max.
Tungsten (W)
Vanadium (V) Max.
Copper (Cu) Max. 1.5–3.0
Manganese (Mn) Max. 1.0
Niobium (Nb) plus Tantalum
Carbon (C) Max. 0.05
Nitrogen (N) Max.
Silicon (Si) Max. 0.5
Sulphur (S) Max. 0.03
Phosphorous (P) Max.
Other Elements

Super Austenitic 825 Product Range


Alloy UNS Designation Werkstoff NR. Specifications*
825 N08825 2.4858 B/SB704, B/SB705

*Note: The specifications noted including ASTM, ASME, or other applicable authorities are correct at the time of publication. Other specifications may apply for use of these materials in different applications.