Metals & alloys · Nickel & cobalt alloys
René 41-type nickel superalloy
A high-strength γ′-hardened nickel superalloy used in turbine and rocket components requiring high-temperature strength and oxidation resistance.
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01
Overview
- Material class
- Metals & alloys
- Category
- Nickel & cobalt alloys
- Family
- Wrought Nickel Superalloy
- Product forms
- Sheet/plate, Bar/rod
Composition
| Constituent | Min | Max | Typical | Note |
|---|---|---|---|---|
| Ni | 50 | 54 | ||
| Cr | 18 | 20 | 19 | |
| Co | 10 | 12 | 11 | |
| Mo | 9 | 10.5 | 9.8 | |
| Ti | 3 | 3.3 | 3.1 | |
| Al | 1.4 | 1.8 | 1.6 |
02
Properties and conditions
Engineering properties
| Property | Value | Unit | Condition |
|---|---|---|---|
| Density | 8.25 | g/cm³ | Representative; verify product form and condition |
| Elastic modulus | ~220 | GPa | Representative; verify product form and condition |
| Yield strength | ~900–1200 | MPa | aged |
| Tensile strength | ~1200–1500 | MPa | Representative; verify product form and condition |
| Service temperature | up to ~870 | °C | short/medium duration |
| Fabricability | demanding | process controlled |
Conditions
Representative supplied condition
Condition not fully specified in the source record.
03
Processing and use
Processing
- Product form, thermal history and manufacturing route materially affect performance.
Applications
- Rocket engine components
- Turbine rings
- Afterburner hardware
Selection considerations
- Use the current governing standard and supplier certification for design or procurement.
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04
Standards and related materials
Standards and designations
| System | Designation | Note |
|---|---|---|
| UNS | N07041 | |
| AMS | 5545 / 5712 | product dependent |
05
Sources and context
Sources
- Aerospace superalloy technical literatureExisting reference
- NASA materials selection resourcesApplication reference
- U.S. Department of Energy lightweight materials programApplication reference
- U.S. Department of Energy critical materials programStrategic reference
Confirm the applicable specification, product form and condition before using values for design or procurement.
Supply and sustainability
Availability and lead time depend on grade, product form, certification and regional supply chain.
Segregated recovery and closed-loop recycling improve material efficiency where practical.