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Monel line

Monel refers to a group of nickel alloys that have copper as the main alloying element. In addition to these two primary metals, Monel alloys may also contain small amounts of iron, manganese, carbon, silicon, sulfur, aluminum, and titanium.

Monel introduction

The specific composition of a Monel alloy depends on its desired properties and applications. In general, Monel alloys are known for their high strength and resistance to corrosion in both fresh and saltwater while also having excellent high and low-temperature resistance.

The three main Monel alloys, each of which has several variations, are listed below:

  1. arrow iconMonel 400: Monel has excellent resistance to attack by a number of corrosive agents, including seawater and strong acids - even hydrofluoric acid. It is a tough, high-strength alloy that can only be cold worked, not heat treated, for additional increases in strength. Monel 400 is machinable but presents some challenges. The alloy work hardens under the action of the cutting tool and requires close attention to feed and speed settings and tool wear.
  2. arrow iconMonel R-405: This alloy has the same composition as Monel 400 except for a small increase in the sulfur content (from 0.024 to 0.06 %). The additional sulfur gives R-405 better machinability than the 400 grade by creating nickel-copper sulfide inclusions in the material that act as chip breakers.
  3. arrow iconMonel K-500: This alloy is a high-strength variant of Monel with small amounts of aluminum and titanium added to the basic formula. It has all the advantages of standard Monel 400, but with increased hardness and strength from precipitation hardening heat treatments. 

Composition of monel

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

Monel Mechanical Property

PropertyValue (Metric)Value (Imperial)
Density8.80*103 kg/m3549 lb/ft3
Modulus of Elasticity179 GPa26,000 ksi
Thermal Expansion (20ºC)13.9*10-6º C-17.7*10-6 in/(in*ºF)
Specific Heat Capacity427 J/(kg*K)0.102 BTU/(lb*ºF)
Thermal Conductivity21.8 W/(m*K)151 BTU*in/(hr*ft2*ºF)
Electric Resistivity54.7*10-8 Ohm*m54.7*10-6 Ohm*cm
Tensile Strength (Annealed)550 MPa79,800 psi
Yield Strength (Annealed)240 MPa34,800 psi
Liquidus Temperature1,350º C2,460º F
Solidus Temperature1,300º C2,370º F

Specifications of monel


Monel: Monel 400/K500


0.1-20 mm or as requirement


1000-6000 mm or as requirement




Auto, turbines, blades, powder and engines,etc


High corrosion resistance, low density, good thermal stability


Bright, Polished, Pickling, Acid cleaning, Sandblasting

Quality and test

Hardness test, Bending test, Hydrostatic etc.



Trade Term



L/C,T/T,Western Union,MoneyGram


7-25days or according to the product

Advantages of monel

The main advantages that Monel offers are

    high corrosion resistance to acids and alkalis.

    resistance to alkalis.

    good ductility (easy to shape and form)

    ease of welding, brazing, and soldering

    high mechanical strength

    availability in different forms like sheets, plates, rods, bars, pipes, and tubes

    attractive appearance and finishes. 

    ability to hold up in high-temperature situations as well as low temperatures

Application of monel

Due to fabrication by hot- and cold-working, machining, and welding, Monel is extensively used in marine and chemical processing fields. However, the material is costly so can only be used where cheaper alternatives are not available. Usually, Monel piping is more than 3 times as expensive as compared to carbon steel pipe

Typical applications of Monel are 

      valves and pumps;       pump and propeller shafts;       electrical and electronic components;       crude petroleum stills, boiler feedwater heaters, marine fixtures, and fasteners;

      gasoline and water tanks;       fuel tanks;     springs;     chemical processing equipment;     process vessels and piping;      heat exchangers;     metal instruments;     deaerating heaters;

      musical instruments;     refrigerators;     film processing;     kitchen sinks;     roofing;     and eyeglass frames. 

Monel is available in a pipe, fittings, plate, strip, round bar, strip, tube, sheet, and wire form.

hot sale product

400 Monel steel pipeUNS N04400 Monel steel pipe supplier
K500 Monel steel pipeMonel406 Monel steel pipe suppliers
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K500 Monel steel pipe suppliersUNS K500 Monel steel pipe manufacturer

our export country

We are a well known worldwide supply and export Monel in following countries:,Italy, Philippines, France,Ireland, Portugal, Gambia, Thailand, Ukraine, United Kingdom, Netherlands, South Africa, Spain, Turkey, Libya, Romania, Puerto Rico, Azerbaijan, United Arab Emirates, Pakistan, Ghana, Slovakia, Germany, Saudi Arabia, Afghanistan, Bolivia, Switzerland, Bangladesh, Taiwan, Oman, Egypt, Greece, Norway, Singapore, Bulgaria, Estonia, Belgium, Yemen, Hong Kong, Ecuador, Sri Lanka, Nepal, Belarus, Finland, Gabon, Iran, Canada, Argentina, Lebanon.

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