1. Introduce
– Precipitation hardenable Ni-based superalloy
– Alloy developed for use in the temperature range of 760 to 927°C
– Used to manufacture second stage blades for high power gas turbines
– Composed of carbide, γ’ phase, refractory elements, it has excellent corrosion resistance and stability at high temperatures
– UNS N07500
* Udimet : Ni-based alloy recommended for applications requiring high strength at elevated temperatures
* UNS
- Abbreviation for Unified Numbering Systems for Metals and Alloys
- Unified 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 N07500 : 07XXX : Chromium (Precipitation-hardenable alloy)
2. Property
– Excellent high-temperature mechanical properties, corrosion resistance, forgeability, ductility
| Element | Impact |
|---|---|
| Ni | Provides corrosion resistance |
| Cr | Provides corrosion resistance, oxidation resistance |
| Co | Highly strengthening element, provides creep properties |
| Al | Provides high temperature creep properties, oxidation resistance |
| Ti | Provides high temperature strength, corrosion resistance |
| Mo | Highly strengthening element, provides high temperature creep properties |
[Udimet 500 Chemical Composition (%)]
| Ni | Cr | C | Al |
|---|---|---|---|
| Min. 51.63 | Max. 19.00 | 0.05 ~ 0.10 | Max. 3.00 |
| Ti | Si | Mn | Mo |
|---|---|---|---|
| Max. 3.00 | Max. 0.10 | Max. 0.10 | Max. 4.00 |
| Co | Zr | B | |
|---|---|---|---|
| Max. 19.00 | Max. 0.06 | Max. 0.01 |
[Udimet 500 Mechanical Properties]
| Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation (%) |
|---|---|---|
| 1158 | 1034 | 15 |
[Udimet 500 Physical Properties]
| Density (g/㎤) | Melting Range (℃) |
|---|---|
| 7.70 ~ 8.03 | 1260 ~ 1405 |
3. Standard & Specification
– Specification : UNS N07500
| SAE | AMS 5751, AMS 5753, AMS 5384E |
| ASTM | B637 |
| DIN | 2.4983 |
| AISI | 684 |
4. Available Form
– Plate, Sheet
– Bar, Rod : Round, Flat, Square
– Coil, Strip
– Pipe, Tube : Seamless, Welded
5. Application & Product
– Aerospace, Chemical
| Application | Product |
|---|---|
| Aerospace | Aircraft blades, Land-based gas turbine blades, Combustion chamber liners |
| Chemical | Pressure vessels, Heat exchangers |
(1) Land-based gas turbine blades / (2) Combustion chamber liners / (3) Pressure vessels / (4) Heat exchangers
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