825
Super Austenitic Pipe and TubingProduct Information
Super Austenitic 825 Pipe and Tubing
| Â | Size | Â | 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
| Â | Â | Â | Tensile Strength | Yield Strength | Â | Â | Â | Â | Â | Â | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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.
© 2025 Precision Castparts Corp.