Monel® Alloy 400

Monel® Alloy 400 / 2.4360 – 2.4361 / UNS N04400

Monel® Alloy 400 is a nickel-copper alloy known for its excellent corrosion resistance in a wide range of environments, including seawater, hydrofluoric acid, sulfuric acid, and alkalis. This alloy combines good mechanical properties with chemical resistance, even at high temperatures and under pressure.

Thanks to its robustness and reliability, Monel® 400 is a popular choice for applications where durability and resistance to aggressive media are required.

Properties of Monel® Alloy 400

Monel® 400 is primarily composed of nickel (approximately 63%) and copper, offering a natural resistance to corrosion without the need for additional alloying elements or coatings. The alloy resists both acids and bases and demonstrates excellent resistance to stress corrosion, pitting, and cracking.

The mechanical strength is maintained over a wide temperature range, from cryogenic temperatures up to about 480°C. Additionally, Monel® 400 is easily weldable and machinable, making it suitable for complex constructions and components.

Monel® 400 is not precipitation hardened but gains its strength through cold working, providing flexibility in processing.

Applications of Monel® Alloy 400

Monel® Alloy 400 is extensively used in industries where a high degree of corrosion resistance and reliability is required. Examples of applications include:

Marine engineering and components in contact with seawater
Chemical processing equipment and installations for hydrogen fluoride and acids
Hydrocarbon processing systems
Valves, pumps, shafts, and fittings
Fasteners in corrosive environments
Heat exchangers and condensers

Thanks to its versatility, Monel® 400 is applicable in both heavy industrial applications and precision components within the chemical, marine engineering, and power generation sectors.

Monel® Alloy 400 is the ideal choice for applications where robustness and long-lasting corrosion resistance are essential.

Our Nickel products