Nimonic Alloy 90
Material Data Sheet
Alloy Nimonic® 90 is a precipitation-hardenable nickel-chromium-cobalt alloy strengthened by the addition of Titanium and Aluminum.
Alloy 90 has a high-stress rupture strength and creep resistance at temperatures up to 920°C. Nimonic® 90 is typically used in extreme stress applications. Nimonic® 90 is welded using shielded metal-arc welding, gas-tungsten arc welding, gas metal-arc welding, and submerged-arc welding methods. Nimonic® 90 is hot worked or forged at temperatures ranging from 1800 to 2150°F (983 to 1177°C)
Chemical Composition
| Element | Content (%) |
|---|---|
| Iron, Fe | 58.5 |
| Chromium, Cr | 19.5 |
| Cobalt, Co | 18.0 |
| Aluminum, Al | 1.5 |
Physical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.18 g/cm³ | 0.296 lb/in³ |
| Melting Point | 1344 °C | 2450 °F |
Mechanical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Tensile Strength, Ultimate | 1150 MPa | 167000 psi |
| Tensile Strength, Yield | 725 MPa | 105000 psi |
| Elongation at Break | 30% | 30% |
| Coefficient of Expansion | 12.7 μm/m°C (20–100°C) | 7.1 x 10-6 in/in°F (70–212°F) |
| Modulus of Elasticity | 213 kN/mm² | 30894 ksi |
Applications
- Turbine blades
- Hot-working tools
- Exhaust reheaters
- Jet engine components
- Disc and high-temperature springs
Specifications
- UNS N07090
- BS HR2 Alloy 90 bar
- BS HR202 Alloy 90 sheet
- BS HR402 Alloy 90 tube
- BS HR501 Alloy 90 wire (springs)
- BS HR501 Alloy 90 wire (springs)
- AMS 5829 Welding Wire
- Werkstoff 2.4632
- Werkstoff Br. 2.4969
- NiCr20Co18Ti
- NCK20TA (AIR 9165)
- MSRR 7004, 7016, 7022, 7063, 7070, 7137, 7162, 7193, 7952
- Siemens DL 1641-1
- ABB Stal 63 73 01
- ASTM B463
- ASTM B637
- ASME SB463
Key Words:Nickel-Chromium Alloy; UNS N07090; BS 3075 (NA19), HR2, HR202, HR402, HR501 – HR503; Werkstoff Nr. 2.4632; AMS 5829, WL Nr. 2.4632; AFNOR NCK 20 D; AECMA Pr EN 2295 – 2299, 2400, 2401, 2412, 2669, 2670
