René 41 is a nickel-based high temperature alloy developed by General Electric. It retains high strength in the 600–1,000 °C (1,200–1,800 °F) temperature range. It is used in jet engine and missile components, and other applications that require high strength at extreme temperatures. René 41 is considered a nickel alloy based upon its chemical composition.[1]

Cr Ni Mo Co Al Ti B C Fe Mn Si S Cu
Min 18.00% Balance 9.00% 10.00% 1.40% 3.00% 0.003% 0.06% -- -- -- -- --
Max 20.00% Balance 10.50% 12.00% 1.80% 3.30% 0.01% 0.12% 5.00% 0.10% 0.50% 0.015% 0.50%

René 41 was used to create the outer shell of the Mercury space capsule, due to its ability to retain high strength at very high temperatures.[2]

References

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  1. ^ "Rene 41 Chemistry". Rolled Alloys Inc. Archived from the original on February 15, 2017. Retrieved October 29, 2014.
  2. ^ We Seven: by The Astronauts Themselves. Simon & Schuster. 1962.
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