GH3039
GH3039 alloy is a single-phase austenitic solid solution strengthened alloy with moderate thermal strength and good thermal fatigue properties below 800℃ and good oxidation resistance below 1000℃. Long-term use of stable organization, but also has good cold forming and welding performance. It is suitable for aero-engine combustion chambers and additive combustion chamber parts for long-term use below 850℃. The alloy can produce plates, bars, wires, tubes and forgings.
Content
Chemical composition of GH3039(%)
| Element | Minimum (%) | Maximum (%) |
|---|---|---|
| C | 0.08 | |
| Cr | 19 | 22 |
| Ni | 35 | 40 |
| Ti | 0.35 | |
| Fe | – | 3 |
| Co | 0.5 | |
| Mn | 0.8 | 1 |
| Si | 0.8 | |
| Mo | 2.3 | |
| Cu | – | 0.5 |
| W | – | 0.2 |
| P | – | 0.03 |
| S | – | 0.02 |
| Al | 0.75 | |
| Nb | 1.3 | |
| V | 0.9 | |
| B | – | 0.005 |
| Zr | 0.06 | |
| N | – | |
| O | – | |
| Ce | – |
Physical properties of GH3039
| Property | Value |
|---|---|
| Density(g/cm³) | 8.3 |
| Melting Point°C | 1374–1420 |
Mechanical properties of GH3039 alloy
| Property | Value |
|---|---|
| Tensile Strength (Ultimate) | 945 Mpa |
| Yield Strength (0.2% Offset) | 685 Mpa |
| Elongation | 40% |
Applications of GH3039
GH3039 alloy is known for its exceptional high-temperature strength and oxidation resistance, making it highly suitable for various critical applications across multiple industries. Here’s a detailed overview of its primary uses:
1. Aerospace Industry
- Turbine Engines: GH3039 is used in the manufacturing of parts for turbine engines, such as blades and other components that are exposed to high temperatures and require high strength and excellent oxidation resistance.
- Exhaust Systems: The alloy’s resistance to high-temperature corrosion and strength make it ideal for use in aircraft exhaust systems.
2. Industrial Applications
- Heat Treatment Equipment: GH3039 is employed in the construction of industrial furnaces and heat exchangers due to its ability to withstand prolonged exposure to high temperatures without losing mechanical strength.
- Chemical Processing: Its excellent corrosion resistance makes it suitable for components in chemical processing plants, especially those handling hot, corrosive gases.
3. Energy Sector
- Power Plants: Within power plants, GH3039 can be used for boiler fixtures and other components that require high-temperature resistance to ensure long-term reliability and safety under extreme conditions.
4. Marine Engineering
- Offshore Technology: The alloy is also used in offshore oil drilling and production platforms, particularly in parts that are exposed to harsh marine environments, but still require high strength and corrosion resistance.
The use of GH3039 in these applications highlights its crucial role where durable materials are needed to withstand harsh environments while maintaining integrity and performance. This makes GH3039 a key material for advanced engineering solutions where both high-temperature performance and corrosion resistance are critical.
