1.Introduce
– Ni-Cr-Co alloy with age-hardening properties
– Al and Ti are added to improve strength through precipitation hardening
– Excellent 920℃ high temperature strength
– UNS N07090
* Nimonic
- Ni-Cr alloy
- Excellent heat and oxidation resistance
- Alloy of Ni and Cr with trace amounts of Ti and Al
* UNS
- Abbreviation for Unified Numbering Systems for Metals and Alloys
- Unified unique numbering system for metals and alloys
- A representative number that is compatible with metals and alloys defined in many material-related codes such as ASTM, AISI, ASME, AWS, etc.
* N : Nickel and nickel alloys
* UNS N07090 : 07XXX : Chromium (Precipitation-hardenable alloy)
2. Property
– Good high temperature strength, creep resistance, high temperature corrosion and oxidation resistance
| Element | Impact |
|---|---|
| Ni | Provides corrosion resistance |
| Cr | Provides corrosion resistance, oxidation resistance |
| Co | Provides strength, creep properties |
| Ti | Provides high temperature strength |
| Al | Provides high temperature strength, high temperature creep |
[Nimonic 90 Chemical Composition (%)]
| Ni | Cr | Fe | C | Al |
|---|---|---|---|---|
| 48.98 ~ 64.00 | 18.00 ~ 21.00 | Max. 1.50 | Max. 0.13 | 1.00 ~ 2.00 |
| Ti | Cu | Si | Mn | S |
|---|---|---|---|---|
| 2.00 ~ 3.00 | Max. 0.20 | Max. 1.00 | Max. 1.00 | Max. 0.02 |
| Co | Zr | B | ||
|---|---|---|---|---|
| 15.00 ~ 21.00 | Max. 0.15 | Max. 0.02 |
[Nimonic 90 Mechanical Properties]
| Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation (%) |
|---|---|---|
| Min. 1100 | Min. 700 | Min. 15 |
[Nimonic 90 Physical Properties]
| Density (g/cm³) | Melting Range (℃) |
|---|---|
| 8.18 | 1310 ~ 1370 |
3. Standard & Specification
– Specification : UNS N07090
| Product Form | BS | SAE | AECMA |
|---|---|---|---|
| Rod, Bar, Wire, Forging Stock | HR2, HR501, HR502, HR503 | AMS 5829 | PrEN 2295, PrEN 2296, PrEN 2297, PrEN 2400, PrEN 2401, PrEN 2669, PrEN 2670 |
| Plate, Sheet, Strip | HR202 | – | PrEN 2298 |
| Pipe, Tube | HR402 | – | PrEn 2299 |
4. Available Form
– Rod, Bar, Wire, Forging Stock
– Plate, Sheet, Strip
– Pipe, Tube
5. Application & Product
– Aerospace, Nuclear, Chemical and Petroleum
| Application | Product |
|---|---|
| Aerospace | Turbine blades, Disks, Rings |
| Nuclear | Fuel tubes |
| Chemical and Petroleum | Chemical reactors, Petroleum refining equipment, Chemical sensors |
(1) Turbine Blade / (2) Disk / (3) Ring
(4) Fuel tube / (5) Chemical reactor
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