Incoloy 890 (UNS N08890)
Incoloy 890 (UNS N08890) is offering high strength along with excellent resistance to oxidation, carburization, and sulfidation at temperatures up to 2200°F (1200°C).
Equivalent Grades
| Trademark | GB | GOST | ASTM | UNS | DIN | W.Nr. | NF | BS | JIS | SS |
| Incoloy 890 | – | – | Incoloy 890 | N08890 | – | – | – | – | – | – |
Chemical Composition, %
| Alloy | C | Si | Mn | P | S | Cr | Ni | Mo | Nb | Ta | Al | Ti | Fe |
| Incoloy 890 | 0.06-0.14 | 1.0-2.0 | ≤1.5 | ≤0.03 | ≤0.015 | 23.5-28.5 | 40.0-45.0 | 1.0-2.0 | 0.2-1.0 | 0.1-0.6 | 0.05-0.60 | 0.15-0.60 | ≥17.3 |
Typical Physical and Mechanical Properties (RT, Solution annealed)
| Density, g/cm3 | Melting Point, ℃ | Tensile Strength, MPa | Yield Strength, MPa | ELongation, % | Hardness, HRB |
| 7.94 | 1309-1383 | 652 | 272 | 46 | / |
Available Products and Specifications
| Rod, Bar, Wire and Forgings | ASTM B408 |
| Plate, Sheet and Strip | ASTM B409, ASTM B906 |
| Pipe and Tube | ASTM B407 |
| Welding Product | – |
| Others | – |
Features
Incoloy 890 is supplied in the annealed condition. The tensile and yield strength values of alloy 890 at ambient and elevated temperatures are approximately the same as those of alloy 803 and slightly higher than values for alloy 800HT. Like alloy 803 it is strengthened by its content of chromium and carbon. However, alloy 890 is further strengthened, especially at very high temperatures, by molybdenum and niobium.
Applications
Incoloy 890 is mainly used for domestic and industrial sheathed heater applications and other high-temperature applications.
