Incoloy 801 & 802
Incoloy 801: UNS Designation N08801, also known as “Alloy 801”; Incoloy 802: UNS Designation N08802, “Alloy 802”. Very similar to Incoloy 800, both Incoloy 801 and Incoloy 802 are iron-nickel-chromium alloys. Incoloy 801 has increased titanium additions raising the tensile and rupture strength dramatically and it has exceptional resistance to polythionic acid cracking. Incoloy 802 offers competitive high-temperature strength capabilities because of its high carbon level and has been used extensively in sinter deck plate applications for handling abrasive, high-temperature environments. Metals-Piping mainly supplies Incoloy 801 & 802 in the form of wire.

Incoloy 802 wires, UNS N08802.
1. Chemical Composition Requirements
| The Chemical Composition | Incoloy 801, % | Incoloy 802, % |
|---|---|---|
| Nickel | ≥32 | ≥32 |
| Chromium | ≥20.5 | ≥21 |
| Iron | Balance | Balance |
| Carbon | ≤0.05 | ≤0.35 |
| Aluminum | - | ≥0.60 |
| Titanium | ≥1.10 | ≥0.70 |
| Copper | ≥0.15 | - |
2. Physical Properties of Incoloy 801 & 802
| Density | Melting Range | Specific Heat | Elastic Modulus |
|---|---|---|---|
| g/cm3 | °C | J/kg. k | Gpa |
| 8.0 | 1372-1400 | 485 | 200 |
3. Mechanical Properties of Incoloy 801 & 802
| Tensile Strength, min. | Yield Strength, min. | Elongation, min. | Reduction in Area, min. |
|---|---|---|---|
| Mpa | Mpa | % | % |
| 1160 | 1035 | 15 | 53 |
