Nickel and nickel alloys · Alloy RENE 41 / N07041 / 2.4973
RENE 41 (UNS N07241) Superalloy: Engineering Characteristics and Application
Engineering Analysis of RENE 41 (UNS N07241) Superalloy: Properties and Specifications
RENE 41 (UNS N07241) is a nickel-based superalloy, precipitation-hardened by the gamma prime (γ') Ni3(Al, Ti) phase. This microstructural feature provides outstanding creep resistance and strength retention at temperatures up to 980°C. EV Group China's engineering technologists confirm its high structural stability under prolonged thermocyclic loads, making it indispensable for critical aerospace components.
| Product Type | International Marking | Specifications (Standards) | European Equivalents |
|---|---|---|---|
| Round and flat wire, calibrated rods, shaped profiles | RENE 41, UNS N07241, Aeralloy 41 | AMS | W.Nr. |
| Round and flat wire, calibrated rods, shaped profiles | RENE 41, UNS N07241, Aeralloy 41 | 5545, 5713, 5800, 5712 | 2.4973 |
Key Operational Characteristics of RENE 41
- Microstructure and Alloying Elements: The chemical composition is based on a nickel matrix, alloyed with chromium for corrosion resistance, and cobalt and molybdenum for solid solution strengthening. Titanium and aluminum play a key role, forming the intermetallic γ' (Ni3(Al,Ti)) phase during heat treatment, which is the primary mechanism for precipitation hardening. This ensures resistance to high-temperature corrosion and cracking.
- High-Temperature Stability: The alloy demonstrates excellent microstructural integrity at operating temperatures reaching 980°C (1800°F). This allows its use in assemblies where standard heat-resistant steels are subject to unacceptable plastic deformation and loss of load-bearing capacity.
- Creep and Fatigue Resistance: RENE 41 possesses high creep rupture strength and excellent fatigue resistance, which is a critical parameter for components operating under cyclic loads and high pressure in aggressive environments.
Main Application Areas of RENE 41
- Aerospace Industry: Production of turbine disks and blades, combustion chamber components, structural elements, and fasteners for jet and rocket engines, where maximum reliability is required under extreme thermomechanical loads.
- Energy Sector: Manufacturing of components for stationary gas turbine installations, including high-temperature bolted connections and bushings, operating in aggressive combustion product environments.
- Oil and Gas, and Chemical Industries: Equipment components for thermal cracking and hydrocarbon processing, where a combination of heat resistance and chemical media resistance is necessary.
- Tooling and Special Equipment: Production of specialized industrial and medical instruments subjected to repeated high-temperature sterilization and intensive mechanical stress.
The use of RENE 41 superalloy, supplied by EV Group China, guarantees the durability and operational safety of complex technological equipment operating under the most severe industrial and climatic conditions.
Chemical Composition of RENE 41 (mass fraction, %)
| C | <0,12 |
|---|---|
| Mn | <0,10 |
| Si | <0,50 |
| S | <0,015 |
| Cr | 18,0-20,0 |
| Co | 10,0-12,0 |
| Mo | 9,0-10,5 |
| Ti | 3,0-3,3 |
| Al | 1,4-1,6 |
| B | 0,003-0,01 |
| Fe | <5,0 |
| Ni | Base |
Mechanical Properties of UNS N07241 Alloy Depending on Heat Treatment
| Material Condition | Annealed Condition | Annealing + Aging | Spring Temper | Work Hardened + Annealing + Aging | Work Hardened + Aging |
|---|---|---|---|---|---|
| Tensile Strength (Rm), N/mm² | <1100 | 1350-1550 | 1400-1800 | 1350-1550 | 1600-2000 |
Physical Constants of RENE 41 Alloy
The physical density of the material at 20°C is 8.25 g/cm³.
Thermophysical Properties of the Material
| Melting Temperature | Linear Thermal Expansion (20–100 °C) | Shear Modulus (Rigidity) | Modulus of Elasticity (Young's) |
|---|---|---|---|
| 1345 °C | 13.6 µm/m°C | 83.2 kN/mm² | 218 kN/mm² |