Jiangyin Chengxin Alloy Material Co., Ltd ，
Jiangsu Xiangcheng Supply Chain Management Co. LTD
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Monel Alloy The Trusted Solution Monel 400/UNS N04400/W.Nr.2.4360 For Forming And Machining In Any Application
Monel 400 is recognized for its high strength, toughness, and outstanding resistance to a wide range of corrosive environments. It is a nickel-copper alloy that can only be hardened by cold working and is widely used in marine, chemical processing, and other industries where resistance to corrosion is critical.
Monel 400 has excellent resistance to many corrosive media, including hydrofluoric acid, seawater, and various acidic and alkaline solutions. The alloy maintains high strength and toughness over a wide temperature range. It has good weldability, allowing it to be joined using various welding processes. Monel 400 can be easily formed and machined using standard methods.
Trade Code
| GB | ASTM | W.Nr. |
| NS 6400 | UNS 04400 | 2.4360 |
| Chemical Composition Wt.% | % | Ni | Cu | Fe | C | Mn | Si | S |
| Min | 63 | 28 | ||||||
| Max | 34 | 2.5 | 0.3 | 2 | 0.5 | 0.024 |
| Physical Constants | Density(g/cm³) | 8.83 | |||||
| Melting Range(℃) | 1300-1390 | ||||||
| Minimum mechanical properties of alloy at room temperature | Typical mechanical properties | Tensile strength Rm N/mm² | Yield strength RP 0.2 N/mm² | Elongation A5 % | ||||
| Annealing treatment | 480 | 170 | 35 | |||||
Some key features of Monel400 include:
Monel 400 is a nickel-copper alloy known for its high mechanical strength and resistance to corrosion, making it suitable for demanding applications.
Outstanding resistance to seawater, acids, alkalis, and other harsh environments, which makes it ideal for marine and chemical processing industries.
Easily welded, machined, and formed, Monel 400 is versatile in manufacturing processes and can be fabricated into complex parts.
Unlike many other alloys, Monel 400 resists stress corrosion cracking in seawater and high-temperature environments.
Maintains excellent strength and resistance to oxidation at elevated temperatures, making it suitable for high-temperature applications.
Monel 400 is non-magnetic, which makes it ideal for applications where magnetic properties would interfere with the function, such as in marine and electronic equipment.
Offers a high level of ductility, enabling it to be drawn into wire or shaped into various forms without cracking or breaking.
Monel 400 is resistant to fatigue, making it ideal for components subject to repeated stress, such as valves, pumps, and propeller shafts.
It is safe for use in medical devices, surgical implants, and other applications requiring biocompatible materials.
These attributes make Monel 400 an ideal choice for industries such as marine, aerospace, chemical processing, oil and gas, and power generation.
Applications:
Seawater Applications: Monel 400 is widely used in marine environments for components like propeller shafts, valves, pumps, and seawater piping systems due to its excellent resistance to corrosion in seawater.
Boat and Shipbuilding: Components exposed to harsh marine conditions, such as fittings, fasteners, and heat exchangers.
Corrosive Chemical Environments: Used in chemical plants for equipment like heat exchangers, reactors, and pressure vessels where resistance to acids, alkalis, and salts is required.
Acidic Solutions: Ideal for components exposed to sulfuric acid, hydrofluoric acid, and other corrosive chemicals.
Aircraft Engine Components: Due to its high strength and thermal stability, Monel 400 is used in the production of aerospace components such as engine parts, fuel systems, and valve trim.
Heat Exchangers: Used in aerospace applications requiring high resistance to both corrosion and heat.
Petrochemical Equipment: Monel 400 is used for valves, pumps, and piping systems in both offshore and onshore oil drilling due to its resistance to sour gas and other corrosive substances.
Drilling Equipment: Components exposed to extreme pressures and harsh chemical conditions.
Electrical Connectors: Used in marine electronics for its resistance to corrosion and electrical conductivity, particularly in harsh, salty environments.
Wiring and Terminals: Monel 400 is used for electrical components that must endure corrosion in harsh marine conditions.
Food Processing:
Food-grade Equipment: Used in food processing equipment, such as mixers, agitators, and heat exchangers, due to its non-toxic and biocompatible nature.
Boiler Tubing and Heat Exchangers: Monel 400 is used in high-temperature heat exchangers and other critical systems in power plants because of its resistance to scaling and oxidation.
Surgical Instruments: Due to its biocompatibility and corrosion resistance, it is sometimes used for surgical tools and implants.
Pharmaceutical Manufacturing: Used for piping, pumps, and reactors in pharmaceutical production due to its resistance to corrosion in highly corrosive environments.
Hydrogen Peroxide Equipment: Monel 400 is used in tanks and piping for handling hydrogen peroxide and other chemicals prone to causing corrosion.
Low-Temperature Applications: Due to its excellent low-temperature properties, Monel 400 is used in cryogenic storage tanks and piping.
Monel 400's versatility and resistance to a wide range of aggressive environments make it indispensable in industries that demand high-performance, corrosion-resistant materials.
