Alloy 800 （UNS N08800） |
|
|
|
|
|
|
|
|
|
Summary | A nickel-chromium alloy with good strength and excellent resistance to oxidation and carburization in high-temperature atmospheres. It also resists corrosion by many aqueous environments. The alloy maintains a stable, austenitic structure during prolonged exposure to high temperatures. Used for process piping, heat exchangers, carburizing equipment, heatingelement sheathing, and nuclear steam-generator tubing. |
|
|
|
|
|
|
|
|
Standard Product Forms | Pipe, tube, sheet, strip, plate, round bar, flat bar, forging stock, hexagon and wire. |
|
|
|
|
|
|
|
|
Chemical Composition Wt,% |
| Min | Max. |
| Min. | Max. |
| Min. | Max. |
Ni | 30.0 | 35.0 | Cu |
| 0.75 | C |
| 0.1 |
|
Cr | 19.0 | 23.0 | Co |
|
| Si |
| 1.0 |
|
Fe | 39.5 |
| Al | 0.15 | 0.6 | P |
|
|
|
Mo |
|
| Ti | 0.15 | 0.6 | S |
| 0.015 |
|
Nb |
|
| Mn |
| 1.5 | N |
|
|
|
Physical Constants | Density,g/ 7.94 |
|
|
|
|
|
|
|
|
Melting Range,℃ 1357-1385 |
|
|
|
|
|
|
|
|
|
Typical Mechanical Properties | (Annealed) (1000h) Rupture Strength (1000h) ksi Mpa 1000℉/540℃ 48 360 1100℉/595℃ 32 160 1200℉/650℃ 21 50 1300℉/705℃ 11 18 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|