800-super-austenitic
Super Austenitic Pipe and TubingProduct Information
Composition of Super Austenitic 800/800H Pipe and Tubing
Grade | 800 | 800H |
---|---|---|
UNS Designation | N08800 | N08810 |
Nickel (Ni) | 30.0–35.0 | 30.0–35.0 |
Chromium (Cr) | 19.0–23.0 | 19.0–23.0 |
Iron (Fe) | 39.5 Min. | 39.5 Min. |
Molybdenum (Mo) | — | — |
Titanium (Ti) Max. | 0.15–0.60 | 0.15–0.60 |
Aluminum (Al) Max. | 0.15–0.60 | 0.15–0.60 |
Cobalt (Co) Max. | — | — |
Tungsten (W) | — | — |
Vanadium (V) Max. | — | — |
Copper (Cu) Max. | 0.75 | 0.75 |
Manganese (Mn) Max. | 1.5 | 1.5 |
Niobium (Nb) plus Tantalum | — | — |
Carbon (C) Max. | 0.10 | 0.05–0.10 |
Nitrogen (N) Max. | — | — |
Silicon (Si) Max. | 1.00 | 1.00 |
Sulphur (S) Max. | 0.015 | 0.015 |
Phosphorous (P) Max. | — | — |
Other Elements | — | — |
Physical Properties of Super Austenitic 800/800H 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 in. (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) |
800 | N08800 | B514, B515 | 75,000 | 520 | 75 | 30,000 | 205 | 30 | 30 | — | — | — | 7.9 | 80 |
800H | N08810 | B514, B515 | 65,000 | 450 | 65 | 25,000 | 170 | 25 | 30 | 5 & coarser | — | — | 7.9 | 80 |
Super Austenitic 800/800H Product Range
Alloy | UNS Designation | Werkstoff NR. | Specifications* |
---|---|---|---|
800 | N08800 | 1.4876 | B/SB515, B/SB514 |
800H | N08810 | 1.4876 | B/SB515, B/SB514 |
*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.

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