Wuxi Nickel Alloy New Material Technology Co., Ltd
Wuxi Nickel Alloy New Material Technology Co., Ltd
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NIMONIC 901 rods are high-performance, age-hardenable nickel-iron-chromium superalloys, specifically engineered for demanding applications requiring exceptional strength and resistance to thermal creep deformation. These rods are particularly suitable for components operating at temperatures up to 600°C (1100°F), such as gas turbine engine discs, shafts, rings, casings, and seals.
Chemical Composition:
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 42.5 |
| Chromium (Cr) | 12.5 |
| Molybdenum (Mo) | 5.75 |
| Titanium (Ti) | 2.9 |
| Cobalt (Co) | ≤1.0 |
| Copper (Cu) | ≤0.5 |
| Manganese (Mn) | ≤0.5 |
| Silicon (Si) | ≤0.4 |
| Aluminum (Al) | ≤0.35 |
| Carbon (C) | ≤0.10 |
| Sulfur (S) | ≤0.03 |
| Iron (Fe) | Balance* |
*Balance refers to the remaining composition after accounting for the listed elements.
Physical Properties:
Density: 8.14 Mg/m³ (0.294 lb/in³)
Melting Range: 1280-1345°C (2336-2453°F)
Specific Heat: 431 J/kg·°C at 20°C (0.103 Btu/lb·°F at 68°F)
Electrical Resistivity: 112 µΩ·cm at 20°C
Mechanical Properties:
| Temperature (°C) | Yield Strength (MPa) | Ultimate Tensile Strength (MPa) | Elongation (%) |
|---|---|---|---|
| 20 (Room Temp) | 1030 | 1240 | 20 |
| 600 | 690 | 830 | 15 |
| 1000 | 480 | 620 | 10 |
*Note: Mechanical properties are based on data from vacuum-refined, extruded, and forged bar specimens.
Applications:
NIMONIC 901 rods are extensively utilized in high-temperature applications, including:
Gas turbine engine components
Aerospace structural parts
Industrial gas turbines
Sealing components in high-temperature environments
Frequently Asked Questions (FAQs):
What is the maximum operating temperature for NIMONIC 901 rods?
NIMONIC 901 rods are designed for optimal performance in applications up to 600°C (1100°F).
What heat treatment processes are recommended for NIMONIC 901 rods?
The recommended heat treatment involves a three-stage process:
Solution treatment at 1090°C (1994°F) for 3 hours, followed by water quenching
Aging at 775°C (1427°F) for 4 hours, followed by air cooling
Final aging at 705-720°C (1301-1328°F) for 24 hours, followed by air cooling
How does the thermal expansion of NIMONIC 901 rods vary with temperature?
The mean coefficient of linear thermal expansion decreases with increasing temperature, starting at 201 µm/m·°C (29.2 × 10⁻⁶ in/in·°F) at 20°C (68°F) and reducing to 126 µm/m·°C (18.3 × 10⁻⁶ in/in·°F) at 1000°C (1832°F).