Alloy Wire International
Datasheet: Rene 41
Rene 41
Rene 41 is an age hardenable nickel base alloy that has very high strength at elevated temperatures, particularly within the range of 650 – 980 °C (1200 – 1800 °F).
Required mechanical properties can be tailored by selection of various combinations of cold work and/or heat treatments. Rene 41 also has good oxidation resistance.
Available in all profile options
Key Features
Rene 41 offers the following key features:
Very high strength at elevated temperatures.
Good oxidation resistance.
Age hardenable.
High temperature dynamic applications.^^
Typical Applications
Rene 41 is known to be suitable for the following applications:
After burner parts
Turbine castings
Bolts
Other fasteners
Designations
W.Nr 2.4973
UNS N07041
AWS 120
Specifications
AMS 5545
AMS 5713
AMS 5800
AMS 5712
GE C50T71
Chemical Composition
The chemical composition of Rene 41 is indicated in the table below:
| Element | Min % | Max % |
|---|---|---|
| C | – | 0.12 |
| Mn | – | 0.10 |
| Si | – | 0.50 |
| S | – | 0.015 |
| Cr | 18.00 | 20.00 |
| Co | 10.00 | 12.00 |
| Mo | 9.00 | 10.50 |
| Ti | 3.00 | 3.30 |
| Al | 1.40 | 1.60 |
| B | 0.003 | 0.01 |
| Fe | – | 5.00 |
| Ni | bal |
Alloy Details
Rene 41 density, melting point, coefficient of expansion, and modulus of elasticity is indicated in the table below:
| Density | Melting Point | Coefficient of Expansion | Modulus of Rigidity | Modulus of Elasticity |
|---|---|---|---|---|
| 8.25 g/cm³ | 1345 °C | 13.6 μm/m °C (20 – 100 °C) | 83.2 kN/mm² | 218.0 kN/mm² |
| 0.298 lb/in³ | 2450 °F | 7.41 x 10-6 in/in °F (70 – 212 °F) | 12067 ksi | 31619 ksi |
Heat treatment of finished parts
The typical heat treatment of Rene 41:
| Condition as supplied by AWI | Type | Temperature | Time | Cooling |
|---|---|---|---|---|
| Annealed | Age Harden | 760 °C (1400 °F) | 16 Hr | Air |
| Spring Temper | Solution Anneal Age Harden | 1065 °C (1950 °F) 760 °C (1400 °F) | 4 Hr 16 Hr | Air Air |
Properties
The typical heat treatment of Rene 41:
| Annealed | ||
|---|---|---|
| Approx. tensile strength | <1100 N/mm² | <159 ksi |
| Approx. operating temperature depending on load^^ and environment | – | – |
| Annealed + Aged | ||
|---|---|---|
| Approx. tensile strength | 1350 – 1550 N/mm² | 196 – 225 ksi |
| Approx. operating temperature depending on load^^ and environment | up to +550 °C | up to +1020 °F |
| Spring Temper | ||
|---|---|---|
| Approx. tensile strength | 1400 – 1800 N/mm² | 203 – 261 ksi |
| Approx. operating temperature depending on load^^ and environment | – | – |
| Spring Temper + Annealed + Aged | ||
|---|---|---|
| Approx. tensile strength | 1350 – 1550 N/mm² | 196 – 225 ksi |
| Approx. operating temperature depending on load^^ and environment | up to +550 °C | up to +1020 °F |
| Spring Temper + Aged | ||
|---|---|---|
| Approx. tensile strength | 1600 – 2000 N/mm² | 232 – 290 ksi |
| Approx. operating temperature depending on load^^ and environment | up to +550 °C | up to +1020 °F |
The above tensile strength ranges are typical. If you require different please ask.
*Trade name of General Electric Inc.
^^ Dynamic applications = active / lively / changing
