Monel is a trademark (of Special Metals Corporation) for a series of stainless metal alloys, primarily composed of nickel (up to 67%) and copper, with some iron and other trace elements. Monel was created by Robert Crooks Stanley for INCO in 1901, and named for company president Ambrose Monell. Properties Monel is very difficult to machine as it work-hardens instantly with heat and doesn't harden into a constant matrix. It needs to be turned and worked at slow speeds and low feed rates. It is re… (More on Monel)