Nickel alloy NIMONIC Alloy 75 – properties, applications and technical data
NIMONIC Alloy 75 is a nickel-chromium alloy with approximately 80% nickel and 20% chromium as well as controlled additions of titanium and carbon.
The alloy was developed in the 1940s for turbine blades in the first jet engines and is today mainly used in sheet metal and component applications where good oxidation and scaling resistance is required at high temperatures.
The material is used in gas turbine technology, industrial heat treatment, furnace components and other high-temperature equipment where stable performance and good manufacturability are important properties.
Properties of NIMONIC Alloy 75
NIMONIC 75 is a solid solution-strengthened nickel-chromium alloy that offers good oxidation resistance and stable mechanical performance at elevated temperatures. temperatures.
The material is relatively easy to form, process and weld compared to many other high-temperature alloys.
- Type: Nickel-chromium alloy for high-temperature environments
- Alloy: Ni-Cr (with additions of Ti and C)
- Structure: Austenitic nickel-based alloy
- Designations: NIMONIC Alloy 75, Alloy 75, UNS N06075, W.Nr. 2.4951, W.Nr. 2.4630
- Typical composition: Ni ~80%, Cr ~20%, small additions of Ti and C
Advantages
- Very good oxidation resistance at high temperatures
- Good scaling resistance in furnace environments
- Stable mechanical strength at elevated temperatures
- Relatively good formability and weldability
- Long life in high temperature applications
Limitations
- Lower strength than some modern nickel-based superalloys
- Not optimal for extremely high mechanical loads
- Can be replaced by more advanced superalloys in some turbine applications
Common product forms for Alloy 75
- Sheet and strip
- Round bar
- Forgings
- Tubes and tubes
- Special dimensions according to drawing
Typical components manufactured in Alloy 75
- Turbine blades and gas turbine components
- Furnace parts and heat treatment equipment
- Heat shields
- High temperature fasteners
- Industrial heat process components
Corrosion and oxidation resistance
NIMONIC 75 offers a lot good resistance to oxidation and scaling in high temperature environments.
The material is often used in atmospheres where high temperatures and oxidative environments occur over long operating times.
Environments where Alloy 75 performs well
- Gas turbine systems
- Industrial furnaces
- Heat treatment processes
- High temperature oxidizing environments
Environments to avoid
- Applications with extremely high mechanical loads
- Environments where more advanced nickel-based superalloys are required
Technical data (annealed condition)
| Yield strength (0.2 %) |
~240 MPa |
| Tensile strength |
~750 MPa |
| Elongation |
~35 % |
| Density |
~8.37 g/cm³ |
| Modulus of elasticity |
~206 GPa |
| Maximum recommended temperature |
~1000 °C (oxidation environment) |
| Weldability |
Good – can be welded using common methods for nickel-based alloys |
With a global network of suppliers, we can offer Alloy 75 in technical dimensions for demanding high-temperature applications.
Contact us for technical advice or a quote.
Supplier of Alloy 75 with certified quality
HARALD PIHL is one of Europe's largest suppliers of special alloys, including nickel-based high-temperature alloys such as Alloy 75.
With over 100 years of experience in the metal industry, we deliver materials with full traceability and certification according to EN 10204 3.1 / 3.2 as well as relevant ASTM and ISO standards.
Cutting, testing and quality assurance are carried out in-house to ensure the right tolerances and fast global delivery for technically demanding projects.
- Europe's largest stock of nickel and titanium alloys
- Nickel-based high-temperature alloys from stock
- ASTM / ISO standards
- Top quality for safety-critical applications
- Fast global delivery
- Full material certification (EN 10204 3.1 / 3.2)
- Over 100 years in the metal industry
- Nickel and titanium experts
