Topic summary
Monel metal

Extracted from the Wikipedia article Monel.
Aerospace applications
In the 1960s, Monel metal found bulk uses in aircraft construction, especially in making the frames and skins of experimentalrocket planes, such as the North American X-15, to resist the great heat generated by aerodynamicfriction during extremely high speed flight. Monel metal retains its strength at very high temperatures, allowing it to maintain its shape at high atmospheric flight speeds, a trade-off against the increased weight of the parts due to Monel's high density.