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| Categories: | Metal; Nonferrous Metal; Nickel Alloy; Superalloy |
| Material Notes: | UDIMET® alloy R41 (UNS N07041) is a precipitation-hardenable nickel-chromium alloy containing significant amounts of cobalt and molybdenum, along with lesser amounts of aluminum and titanium. Alloy R41 exhibits extremely high room and elevated temperature mechanical properties. Excellent corrosion resistance and fabricability have led to wide usage in critical aircraft engine components such as nozzle partitions, turbine blades and wheels, combustion chamber liners and structural hardware.Information Provided by Special Metals Corporation |
| Key Words: | UNS N07041; AMS 5545, 5712, 5713 |
| Vendors: | |
UDIMET® alloy R41
UDIMET® alloy R41 (UNS N07041) is a precipitation- hardenable nickel-chromium alloy containing significant amounts of cobalt and molybdenum, along with lesser amounts of aluminum and titanium. Alloy R41 exhibits extremely high room and elevated temperature mechanical properties. Excellent corrosion resistance and fabricability have led to wide usage in critical aircraft engine components such as nozzle partitions, turbine blades and wheels, combustion chamber liners and structural hardware.
The UDIMET alloy series are super alloys that have nickel or iron or cobalt as their base metal. Super alloys are known for their high-performance at extremely high temperatures or under high mechanical stress. Super alloys are subjected to special hardening techniques in order to achieve high performance at extreme conditions. Some of the commercially available UDIMET alloys are UDIMET alloys 188, 250, 520, 720, R41, L-605.
UDIMET® alloy R41 is a super alloy with nickel as its base metal. This alloy is hardened by precipitation. Along with nickel, other metals like cobalt, chromium, aluminum, molybdenum are added to this alloy. The temperature-mechanical properties of this alloy are very high. It is also corrosion resistant and easily fabricated.
UDIMET® alloy R41 Chemical Composition:
The chemical composition of UDIMET alloy R41 is given in the following table.
| Element | Content (%) |
|---|---|
| Nickel, Ni | 47.27-58.59 |
| Chromium, Cr | 18-20 |
| Cobalt, Co | 10-12 |
| Molybdenum, Mo | 9-10.5 |
| Iron, Fe | ≤5 |
| Titanium, Ti | 3-3.3 |
| Aluminum, Al | 1.4-1.8 |
| Others | remainder |
UDIMET® alloy R41 Physical Properties:
The following table discusses the physical properties of UDIMET alloy R41.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.25 gm/cm3 | 0.298 lb/in3 |
UDIMET® alloy R41 Mechanical Properties:
The mechanical properties of UDIMET alloy R41 are tabulated below.
| Properties | Metric | Imperial |
|---|---|---|
| Poissons Ratio | 0.31 | 0.31 |
UDIMET® alloy R41 Other Designations:
Some of the other designations that are used to denote UDIMET alloy R41 are tabulated below:
| AISI 683 | AMS 5545 | AMS 5712 | AMS 5713 | AMS 5800 |
| DIN 2.4973 | GE B50T44 | GE B50T59 | GE B50T94 | GE B50TF109 |
| GE B50TF11 | GE B50TF110 | GE B50TF210 | GE B50TF59 | GE B50TF75 |
| GE B50TF76 | UNS N07041 |
