The registered trademark name, Monel, is applied as the prefix name to several corrosion resistant alloys produced by Special Metals Corporation. These alloys are nickel-based and exhibit traits that include high resistance to atmospheric corrosion, salt water, and various acid and alkaline solutions.
Alloys of identical chemical and mechanical properties are available from other manufacturers and offer excellent alternatives to the various Monel® brand alloys. The corrosion-resistant alloy is widely used in the marine, oil and chemical processing industries.
Monel Availability
Guanyu Steel Tube supplies Monel 400, Monel K-500, Monel R-405. Most of these grades are available in the form of plate, sheet, pipe, tubing, fittings, bar, wire and rod.
What are the Characteristics of Monel?
- Good resistance to acids such as hydrofluoric and sulfuric acid
- Highly resistant to alkalis
- Malleable
- Highly corrosion resistant
- Stronger than steel
Monel Alloy Chemical Composition:
| Designation | C% | Co% | Cr% | Mo% | Ni% | V% | W% | Ai% | Cu% | Nb/Cb Ta% | Ti% | Fe% | Sonstige Autres-Other % |
| Monel 400 | 0.12 | – | – | – | 65.0 | – | – | – | 32.0 | – | – | 1.5 | Mn 1.0 |
| Monel 401 | 0.10 | – | – | – | 43.0 | – | – | – | 53.0 | – | – | 0.75 | Si 0.25; Mn 2.25 |
| Monel 404 | 0.15 | – | 52.0-57.0 | – | – | 0.05 | rest/bal | – | – | 0.50 | Mn 0.10; Si 0.10;S o.024 | ||
| Monel 502 | 0.10 | – | – | – | 63.0-17.0 | – | – | 2.5-3.5 | rest/bal | – | 0.50 | 2.0 | Mn 1.5;Si 0.5; S 0.010 |
| Monel K 500 | 0.13 | – | – | – | 64.0 | – | – | 2.8 | 30.0 | – | 0.6 | 1.0 | Mn 0.8 |
| Monel R 405 | 0.15 | – | – | – | 66.0 | – | – | – | 31.0 | – | – | 1.2 | Mn 1.0; S 0.04 |
Monel Alloy Application
- Pump shafts, oil-well tools, instruments, doctor blades and scrapers, springs, valve trim, fasteners, marine propeller shafts
- Marine components
- Chemical and hydrocarbon processing equipment
- Valves, pumps, shafts, fittings, heat exchanger
Monel Trivia
Monel was discovered by Robert Crooks Stanley who worked for the International Nickel Company in 1901. The new alloy was named in honor of the president of the company, Ambrose Monell.
*Monel® is a registered trademark of Special Metals Corporation group of Companies.
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