Nickel Alloy 800H, with the designation N08810, is a high-temperature nickel-iron-chromium alloy known for its excellent corrosion resistance, high-temperature strength, and good mechanical properties.
Material Properties of Nickel Alloy 800H (N08810):
1. Incoloy 800H Chemical Composition:
Nickel (Ni): 30.0 - 35.0%
Iron (Fe): 39.5% min.
Chromium (Cr): 19.0 - 23.0%
Aluminum (Al): 0.15 - 0.60%
Titanium (Ti): 0.15 - 0.60%
Carbon (C): 0.05 - 0.10%
Aluminum + Titanium: 0.85 - 1.20%
2. UNS N08810 Material Physical Properties:
- Density: 0.287 lb/in³ (7.94 g/cm³)
- Melting Range: 2475-2525°F (1357-1385°C)
3. Incoloy 800H UNS N08810 Mechanical Properties:
- Tensile Strength: 75 ksi (min) or 515 MPa (min)
- Yield Strength (0.2% Offset): 30 ksi (min) or 205 MPa (min)
- Elongation: 30% (min)
4. 1.4876 Incoloy 800H Thermal Properties:
- Thermal Conductivity: 8.3 Btu·in/(ft²·h·°F) at 212°F (15 W/(m·K) at 100°C)
- Specific Heat: 0.12 Btu/lb·°F (500 J/kg·K) at 32-212°F (0.5-100°C)
- Coefficient of Thermal Expansion: 8.4 µin/in°F (15.1 µm/m°C) from 32 to 212°F (0 to 100°C)
5. DIN 1.4958 material Corrosion Resistance:
Nickel Alloy 800H UNS N08810 material has excellent resistance to corrosion in various environments, including sulfuric acid, nitric acid, and other corrosive media. Resistant to oxidation and carburization in high-temperature atmospheres.
6. Nickel Alloy 800H N08810 Heat Treatment:
Alloy 800H typically requires annealing between 2100°F (1149°C) and 1850°F (1010°C) followed by rapid cooling in water or air.
7. Incoloy Alloy 800H Applications:
- Chemical and petrochemical processing: Used in equipment handling corrosive chemicals and high-temperature environments.
- Power generation: Suitable for applications involving high-temperature and high-pressure conditions.
- Heat exchangers: Utilized for its ability to transfer heat efficiently.
- Industrial furnaces: Resistant to oxidation and corrosion in elevated temperature atmospheres.
- Aerospace and gas turbine components: Provides high-temperature strength and corrosion resistance.
8. 1.4876 alloy 800H Weldability:
The alloy 800H can be readily welded using conventional welding techniques.
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