UNS N04400 is a highly versatile nickel-copper alloy that has a wide range of applications. It demonstrates excellent corrosion resistance and strong mechanical properties in temperatures up to 1000°F, making it ideal for many industrial environments. Consequently, Monel 400 is often employed in high-pressure and high-temperature applications, including boilers, condensers, heat exchangers, oil refinery equipment, and evaporators. Its resistance to seawater makes it commonly used in marine engineering applications such as propellers, shafts, pump parts, and fasteners. UNS N04400 is also regularly chosen for its strength at elevated temperatures when fabricating engine turbines or turbo fans for power generation systems. Furthermore, its unique ability to be hot-worked or cold-worked provides maximum flexibility when creating complex components for a variety of products that rely on its high-strength characteristics.
1.Monel 400 is a nickel-copper alloy that is resistant to corrosion in both fresh water and salt water.
2.Monel 400 can be used in a variety of applications, including marine engineering, chemical processing, and hydrocarbon processing.
3.Monel 400 is also used in the food industry, as it is non-toxic and does not cause allergies.
4.Monel 400 is resistant to both high temperatures and low temperatures, making it ideal for use in a variety of industries.
5.Monel 400 is also ductile, meaning that it can be easily formed into a variety of shapes.
6.Monel 400 is weldable, making it easy to join together using welding techniques.
7.Monel 400 is also resistant to a variety of chemicals, including acids, alkalis, and salts.

Monel 400 Specifications

Monel 400 Composition

Element	Content (%)
Nickel, Ni	Remainder
Copper, Cu	28-34
Iron, Fe	2.5 max
Manganese, Mn	2 max
Silicon, Si	0.5 max
Carbon, C	0.3 max
Sulphur, S	0.024

Monel 400 Mechanical Properties

Properties	Metric	Imperial
Tensile strength(annealed)	517-620 MPa	75-90 ksi
Yield strength	172-345 MPa	25-50 ksi
Modulus of elasticity	179 GPa	26000 ksi
Poisson’s ratio	0.32	0.32