Monel metal grades at a glance with ASTM standard specification and equivalent chart

Monel is a common name for a group of nickel alloys that contain nickel the most with copper and other elements. The alloy is called cupronickel when the copper content exceeds nickel content. Usually, Monel contains from 52 to 67% of nickel. Monel properties and the composition make it stronger than pure nickel material. The formation could be by hot rolling or cold drawing. The cold drawn products are precise in their dimensions and the hot rolled ones are much stronger. The alloy is very resistant especially to rapid flow of sea water. This property makes it best suited for sea water and marine applications. It is easy to be welded, machined and cold worked upon this material. The Monel price per kg differs from grade to grade and from product to product. You can contact us for a price list.

There are different Monel metal grades available in the market. Each has a different composition and therefore specific mechanical properties and purposes. The grades are designated with letters and numbers. There are Alloy 400, 401, 404, 405, 450, K-500, R-405 and 502 grades available in the market. The Monel alloy chemical composition differs from grade to grade. The Alloy 400 has high strength and excellent corrosion resistance. It is used in hydrocarbon processing, marine applications and in heat exchangers. The Alloy 401 is used especially in electric and electronic applications. It has compatible brazing properties. The Alloy 404 has low permeability and therefore it is used in electrical and electronic applications as well. The surface finish of alloy 405 is not very smooth because of the increased dose of sulphur in it, but it is very strong and is used in automatic screw machines. The Monel alloy applications differ with the grades of the alloy. Some special applications use the R-405 which is particularly resistant to hydrofluoric and hydrochloric acids

MONEL PRODUCTS

Monel Pipe 

MONEL GRADES

Monel 400
Monel K500

Monel 405

DIFFERENT TYPES OF MONEL

There are different types of Metal which includes Alloy 400, Alloy 401, Alloy R-405, Alloy 450, Alloy K-500, Alloy 404 Copper-Nickel Alloy

MONEL ALLOY ASTM STANDARD

Alloy gradeUNS designationASTM standard
Alloy 400N04400B 127, B 164 / SB 127, SB 164
Alloy 401N04401
Alloy 404N04404B 164/ SB 164
Alloy K-500N05500B 865/ SB 865

MONEL MATERIAL SPECIFICATION

STANDARDWERKSTOFF NR. equivalentsUNSGOSTJISBSAFNOREN
Alloy 4002.436N04400МНЖМц 28-2,5-1,5NW 4400NA 13NU-30MNiCu30Fe
Alloy K5002.4375N05500

MONEL TEMP RANGE

Temperature limit: up to 480 Deg C (896°F)

Melting Point: 1300-1350 Deg C (2372-2462°F)

MONEL ALLOY APPLICATIONS & USES

Power generation

Sea-water applications

Commercial Gas Turbines

Food Processing

Chemical Processing

Cryogenic Storage / Pressure vessels Tanks

Nuclear reactors

MONEL CHEMICAL COMPATIBILITY CHART

DesignationNi%C%Ti%Ai%Co%Cr%V%W%Mo%Cu%Nb/Cb Ta%Fe%Sonstige Autres-Other %
650.12-------32-1.5Mn 1.0
Alloy 401430.1-------53-0.75Si 0.25; Mn 2.25
Alloy 40452.0-57.00.15-0.05---rest/bal-0.5Mn 0.10; Si 0.10;S o.024
Alloy 50263.0-17.00.10.52.5-3.5-----rest/bal-2Mn 1.5;Si 0.5; S 0.010
Alloy K 500640.130.62.8-----30-1Mn 0.8
Alloy R 405660.15-------31-1.2Mn 1.0; S 0.04

PROPERTIES OF MONEL ALLOY

CHARACTERSTICS

Stronger than steel

Highly resistant to corrosion.

Malleable

Low coefficient of thermal expansion

Highly resistant to alkalis

Suitable for welded, brazed and soldered

Mechanical Analysis
Tensile strength, Ultimate550 Mpa
Tensile strength, Yield240 Mpa
Elongation at Break0.48
Electrical Properties
Electrical Resistance5.47e-005 ohm-cm
Curie Temperature (the temperature above which a ferromagnetic substance loses its ferromagnetism)35°C
THERMAL PROPERTIES
CTE, linear 20°C13.9 µm/m- Deg C
Heat Capacity0.427 J/g-Deg C
Thermal Conductivity21.8 W/m-K
Melting Point1300 - 1350 Deg C
Solidus1300 Deg C
Liquidus1350 Deg C