This Nickel-Iron-Chromium alloy has good strength and excellent resistance to oxidation and carburisation in high temperature atmospheres. Incoloy® 800 also resists corrosion in many aqueous environments.
Incoloy® 800 is also known as Nicrofer 3220, Nicrimphy 800, and Pyromet 800.
| Chemical Composition | Specifications | Designations | Key Features | Typical Applications | ||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
BS 3075 NA15 BS 3076 NA15 |
W.NR 1.4876 UNS N08800 AWS 020 |
Corrosion Resistant at Ambient Temperatures Precipitation Hardenable High temperature static applications** |
Process Piping Heat Exchangers Carburising Equipment Heating Element Sheathing |
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| Density | 7.94 g/cm³ | 0.287 lb/in³ |
| Melting Point | 1385°C | 2525°F |
| Coefficient of Expansion | 14.4 μm/m °C (20 – 100°C) | 7.9 x 10-6 in/in °F (70 – 212°F) |
| Modulus of Rigidity | 78.9 kN/mm² | 11444 ksi |
| Modulus of Elasticity | 196.5 kN/mm² | 28500 ksi |
| Heat Treatment of Finished Parts | |||||
|---|---|---|---|---|---|
| Condition as supplied by Alloy Wire | Type | Temperature | Time (Hr) | Cooling | |
| °C | °F | ||||
| Annealed or Spring Temper | Stress Relieve | 450 – 470 | 840 – 880 | 0.5 – 1 | Air |
| Properties | ||||
|---|---|---|---|---|
| Condition | Approx. tensile strength | Approx. operating temperature depending on load** and environment | ||
| N/mm² | ksi | °C | °F | |
| Annealed | 600 – 800 | 87 – 116 | -200 to +815 | -330 to +1500 |
| Spring Temper | 800 – 1100 | 116 – 159 | -200 to +815 | -330 to +1500 |
The above tensile strength ranges are typical. If you require different please ask.
* Trade name of Special Metals Group of Companies
** Static applications = still/fixed/motionless/rigid
