Incoloy 800 is an iron-nickel-chromium alloy with excellent resistance to high temperatures and stress corrosion, used in petrochemical reactors, furnace baffles, and heat exchangers.
Element | Content (%) |
Nickel (Ni) | 30.0 – 35.0 |
Chromium (Cr) | 19.0 – 23.0 |
Iron (Fe) | Balance |
Aluminum (Al) | 0.15 – 0.60 |
Titanium (Ti) | 0.15 – 0.60 |
Manganese (Mn) | ≤ 1.50 |
Silicon (Si) | ≤ 1.00 |
Carbon (C) | ≤ 0.10 |
Sulfur (S) | ≤ 0.015 |
Property | Value (Typical) | Unit | Condition |
Tensile Strength (Ultimate) | ≥ 520 | MPa | Annealed |
Yield Strength (0.2% Offset) | ≥ 215 | MPa | Annealed |
Elongation (in 50 mm) | ≥ 30 | % | ASTM B409 |
Hardness (Brinell) | ≤ 180 | HB | |
Density | 7.95 | g/cm³ | Room Temp |
Melting Range | 1350 – 1400 | °C | |
Modulus of Elasticity | ~193 | GPa | Room Temp |
Category | Standard Code | Description |
Pipe | ASTM B515 / ASME SB515 | Seamless Incoloy 800 pipe for high-temperature applications |
Tube | ASTM B514 / ASME SB514 | Seamless Incoloy 800 heat-exchanger tubes |
Fittings | ASTM B366 / ASME SB366 | Incoloy 800 fittings |
