Nimonic 80A Rod for High-Temperature Aerospace Components
Nimonic 80A rod is a wrought, age-hardenable nickel-chromium alloy strengthened by additions of titanium, aluminum, and carbon. Developed for service at temperatures up to 815°C (1500°F), it offers excellent mechanical properties, oxidation resistance, and structural stability under thermal stress. This makes Nimonic 80A rod suitable for demanding applications in aerospace, nuclear, automotive, and industrial sectors.
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | Balance |
| Chromium (Cr) | 18.0–21.0 |
| Titanium (Ti) | 1.8–2.7 |
| Aluminum (Al) | 1.0–1.8 |
| Carbon (C) | ≤0.10 |
| Silicon (Si) | ≤1.0 |
| Copper (Cu) | ≤0.2 |
| Iron (Fe) | ≤3.0 |
| Manganese (Mn) | ≤1.0 |
| Cobalt (Co) | ≤2.0 |
| Boron (B) | ≤0.008 |
| Zirconium (Zr) | ≤0.15 |
| Sulfur (S) | ≤0.015 |
| Condition | Ultimate Tensile Strength (MPa) |
|---|---|
| Annealed | 800–1000 |
| Annealed + Aged | 1200–1400 |
| Spring Temper | 1300–1500 |
| Spring Temper + Aged | 1500–1800 |
| Property | Value |
|---|---|
| Density | 8.19 g/cm³ |
| Melting Range | 1320–1365°C |
| Coefficient of Thermal Expansion (20–100°C) | 12.7 µm/m·°C |
| Torsional Modulus | 85GPa |
| Thermal Conductivit | 11.2W/m •°C |
UNS N07080
W.Nr. 2.4952 / 2.4631
ASTM B637
BS 3076 NA 20
BS HR 1, HR 601
Nimonic 80A rods are utilized in various high-temperature applications, including:
Gas turbine components (blades, rings, discs)
Bolts and fasteners
Nuclear boiler tube supports
Die casting inserts and cores
Automotive exhaust valves
Q: What is the maximum operating temperature for Nimonic 80A rods?
A: Nimonic 80A rods are designed for service at temperatures up to 815°C (1500°F), maintaining mechanical strength and oxidation resistance.
Q: Can Nimonic 80A rods be welded?
A: Yes, Nimonic 80A rods can be welded using appropriate techniques, such as tungsten inert gas (TIG) welding, with recommended filler metals like Nimonic 90.
Q: Are Nimonic 80A rods suitable for nuclear applications?
A: Yes, due to their low cobalt content and high-temperature performance, Nimonic 80A rods are specified for certain nuclear applications.