Everything about Monel totally explained
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 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 with the same corrosion resistance but with much greater strength. Monel is typically much more expensive than
stainless steel.
Monel has a specific gravity of 8.82.
Monel has an electrical conductivity of approximately 3.6% IACS.
Uses
Marine applications
Monel's corrosion resistance makes it ideal for marine applications such as piping systems, pump shafts, trolling wire, and strainer baskets. Some alloys are completely non-magnetic and are used for anchor cable aboard minesweepers, housings for magnetic-field measurement equipment, and have applications in the oil drilling industry.
Musical instruments
Monel is used as the material for valve pistons in some higher quality trumpets, for example, Bach Stradivarius.
RotoSound introduced the use of Monel for
electric bass strings in 1962, and these strings have been used by numerous artists, including
The Who,
Sting,
John Deacon, and
John Paul Jones. Monel was in use in the early 1930s by other musical string manufacturers, such as
Gibson Guitar Corporation, who continue to offer them for mandolin as the
Sam Bush signature set.
Other
Monel is often used for kitchen sinks and in the frames of eyeglasses. It has also been used for
firebox stays in
fire-tube boilers.
Parts of the
Clock of the Long Now, which is intended to run for 10,000 years, are made from Monel because of the corrosion resistance without the use of precious metals.
Alloys
| Trade Name |
ASME P Group |
ASTM/AISISteel type
|
UNS |
| Monel 400 |
|
|
N04400 |
| Monel 401 |
|
|
N04401 |
| Monel 404 |
|
|
N04404 |
| Monel R-405 |
|
|
N04405 |
| Monel K-500 |
|
|
N05500 |
Further Information
Get more info on 'Monel'.
|
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