Nimonic 75 Rods High Temperature Alloy For Aerospace And Furnace Components
Nimonic 75 Rod: High-Temperature Nickel-Chromium Alloy for Demanding Applications
Nimonic 75 rod is a nickel-chromium alloy known for its excellent oxidation and scaling resistance at elevated temperatures. With controlled additions of titanium and carbon, it maintains structural integrity in high-temperature environments. Originally developed for turbine blades in the 1940s, Nimonic 75 rods are now utilized in various industries requiring reliable performance under thermal stress.
Chemical Composition of Nimonic 75 Rod
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | Balance |
| Chromium (Cr) | 18.0–21.0 |
| Titanium (Ti) | 0.2–0.6 |
| Carbon (C) | 0.08–0.15 |
| Silicon (Si) | ≤1.0 |
| Copper (Cu) | ≤0.5 |
| Iron (Fe) | ≤5.0 |
| Manganese (Mn) | ≤1.0 |
Mechanical Properties of Nimonic 75 Rod
| Property | Value |
|---|---|
| Density | 8.37 g/cm³ |
| Melting Range | 1340–1380°C |
| Ultimate Tensile Strength (Room Temp) | ~790 MPa |
| Yield Strength (0.2% offset) | ~410 MPa |
| Elongation | ~30% |
Physical Properties of Nimonic 75 Rod
| Property | Value |
|---|---|
| Specific Heat (20°C) | 461 J/kg·°C |
| Thermal Conductivity (20°C) | 11.7 W/m·°C |
| Electrical Resistivity (20°C) | 1.09 µΩ·m |
| Coefficient of Thermal Expansion (20–100°C) | 11.0 µm/m·°C |
Standards and Specifications
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UNS N06075
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W.Nr. 2.4951 / 2.4630
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BS HR 5 / HR 504
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AWS 032
Applications of Nimonic 75 Rod
Nimonic 75 rods are employed in various high-temperature applications, including:
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Gas turbine components
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Industrial furnace parts
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Heat treatment equipment
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Nuclear engineering components
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Aerospace fasteners
Frequently Asked Questions
Q: What is the maximum operating temperature for Nimonic 75 rods?
A: Nimonic 75 rods can operate effectively at temperatures up to approximately 1000°C, depending on the specific application and environmental conditions.
Q: Can Nimonic 75 rods be welded?
A: Yes, Nimonic 75 rods exhibit good weldability using standard welding techniques suitable for nickel-based alloys.
Q: Are Nimonic 75 rods resistant to corrosion?
A: Nimonic 75 rods offer good corrosion resistance, particularly against oxidation and scaling at high temperatures.
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