Nickel Alloy 400, Monel® 400

The nickel-copper alloy Monel 400 has around 67% Ni and 23% Cu. Continental Steel offers different versions of Monel 400, which is valued for its excellent strength and corrosion resistance, for a wide range of applications.

Chemical Composition, %:

ASTM Specifications:

Mechanical Properties:

Typical room temperature Tensile Properties of Annealed Material

*The ranges shown are composites for various product sizes and therefore are not suitable for specification purposes. Hardness values are suitable for specification purposes provided tensile properties are not also specified.

Monel 400 Alloy Grade

Monel 400 Features:

Monel400 is a corrosion-resistant alloy with the largest amount, the most widely used and excellent comprehensive properties. This alloy has excellent corrosion resistance in hydrofluoric acid and fluorine gas medium, and also has excellent corrosion resistance in hot concentrated alkali solution. It is also resistant to corrosion by neutral solutions, water, seawater, atmosphere, organic compounds, etc. An important feature of this alloy is that it generally does not produce stress corrosion cracking and has good machinability.

Metallurgical structure of Monel 400:

The structure of Monel400 alloy is a single-phase solid solution with high strength.

Monel 400 Applications:

Monel 400 alloy is a versatile material with applications in many industrial fields:

1. Seamless water pipes and steam pipes in power plants;

2. Seawater exchangers and evaporators;

3. Sulfuric acid and hydrochloric acid environment;

4. Crude oil distillation;

5. Pump shafts and propellers of equipment used in seawater;

6. The nuclear industry uses equipment for the manufacture of uranium refining and isotope separation;

7. Manufacture of pumps and valves for hydrochloric acid production equipment.