Learn about Nimonic® 90, a precipitation-hardenable alloy composed primarily of nickel, chromium, and cobalt.
Nimonic® 90 Overview
Nimonic® 90 is a precipitation-hardenable alloy composed primarily of nickel, chromium, and cobalt. It exhibits excellent resistance to creep and high stress-rupture strength when exposed to elevated temperatures, performing reliably up to approximately 950°C (1740°F). This alloy is well-established and frequently utilized in high-temperature environments. Common applications include turbine blades, discs, ring segments, forgings, hot-working tools, and other components operating under extreme thermal stress.
Nimonic® 90 Composition
| 你 | 铬 | 铁 | 钛 | 锰 | 硅 | C | 铝 | 公司 | 小号 | 铜 | B | 铅 | Zr | Ag | Bi | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min % | 巴尔 | 18 | - | 2 | - | - | - | 1 | 15 | - | - | - | - | - | - | - |
| Max % | - | 21 | 1.5 | 3 | 1 | 1 | 0.13 | 2 | 21 | 0.015 | 0.2 | 0.02 | 0.002 | 0.15 | .0005 | .0001 |
Designations and Specifications
Designations
- W.Nr 2.4632
- W.Nr 2.4969
- UNS N07090
- NCK 20TA
Specifications
- AMS 5829
- BS HR 501
- BS HR 502
- BS HR 503
- BS 3075 NA 19
- ISO 15156
- (NACE MR 0175)
应用领域
Common Nimonic® 90 applications include:
- 斯普林斯
- 航天
抗拉强度
| Condition | Annealed | After Ageing | ||
|---|---|---|---|---|
| N/mm² | KSI | N/mm² | KSI | |
| Annealed & Aged* | <1000 | <145 | 1200 – 1400 | 174 – 203 |
| Condition | As Drawn | After Ageing | ||
|---|---|---|---|---|
| N/mm² | KSI | N/mm² | KSI | |
| Spring Temper & Aged** | 1200 – 1500 | 174 – 218 | 1500 – 1800 | 218 – 261 |
* Ageing process – heat treatment to be held at 750 °C (1380 °F) for 4 hours and then air cooled
** Ageing process – heat treatment to be held at 650 °C (1200 °F) for 4 hours, then air cooled then held at 600 °C (1110 °F) for 16 hours and then air cooled