Monel
MONEL
Monel is a solid-solution binary alloy. Monel is very difficult to machine as it work-hardens very quickly. It needs to be turned and worked at slow speeds and low feed rates. It is resistant to corrosion and acids, and some alloys can withstand a fire in pure oxygen. It is commonly used in applications with highly corrosive conditions. Small additions of aluminium and titanium form an alloy (K-500) with the same corrosion resistance but with much greater strength. Monel is typically much more expensive than stainless steel.
Monel alloy 400 has excellent mechanical properties at subzero temperatures. Strength and hardness increase with only slight impairment of ductility or impact resistance. The alloy does not undergo a ductile-to-brittle transition even when cooled to the temperature of liquid hydrogen. This is in marked contrast to many ferrous materials which are brittle at low temperatures despite their increased strength.
- Trade Name
Monel 400
Monel 401
Monel 404
Monel K-500
Monel 405
- ASTM/AISI Alloy type
B 127
B 164
865
B 164
Unified Numebring System N04400
N04401
N04404
N05500
N04405
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