René 41

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René 41 is a nickel-based high temperature alloy developed by General Electric. It retains high strength in the 1200/1800°F (649/982°C) 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 -- 9.00 10.00 1.40 3.00 0.003 -- -- -- -- -- --
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 capsule, due to its ability to retain high strength at very high temperatures.[2]

The composition is: chromium 18-20%, cobalt 12%, molybdenum 9-10.5%, titanium 3.0-3.3%, aluminium 1.4-1.6% with the balance nickel.

External links[edit]

References[edit]

  1. ^ "Rene 41 Chemistry". Rolled Alloys Inc. Rolled Alloys Inc. Retrieved 4/9/2013.  Check date values in: |accessdate= (help)
  2. ^ We Seven by The Astronauts Themselves, Simon & Schuster, 1962