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Monel 400 Bars – Composition, Properties and Uses

Monel 400 Bars

Monel 400 is an exceptional nickel-copper alloy with superior corrosion resistance, high strength, and good machining and welding characteristics. The alloy is used in various applications that require strength and resistance to corrosive environments, including seawater, acids, alkalis, and more. In this blog post, we will delve into the composition and properties of Monel 400 bars and explore their heat treatment properties, corrosion resistance, and most common uses.


What is Monel 400 Bars?

Monel 400 Round Bars are an alloy composed of nickel and copper, with small amounts of iron, manganese and other elements. It is widely used in highly corrosive environments due to its superior corrosion resistance. Monel 400 Bars provide tensile strength from 12 ksi (83 MPa) up to 25 ksi (172 MPa). This makes it a great choice for marine applications such as propellers, pump shafts and rudder stock components.

Monel 400 Bars Composition:

Alloy 400 Bars are a mixture of nickel and copper with excellent corrosion resistance and high strength. The composition of Monel 400 varies, with nickel in concentrations ranging from 63% to 70%. Copper content falls between 28% and 34%. Monel 400 alloy also contains small amounts of iron, manganese, silicon, carbon, and sulfur.

Element Min Max
Nickel + Cobalt 63 70
Manganese 2.0 2.0
Silicon .50 .50
Cobalt 1.00 1.00
Iron 2.5 2.5
Sulfur .024 .024
Carbon .30 .30
Copper Balance Balance

Monel 400 Bars Physical Properties:

Monel 400 Square Bar has an excellent combination of physical properties, making it ideal for use across various industries. The bars are tough, strong, and ductile, making them ideal for use as a structural material in high-stress applications. The alloy offers good thermal and electrical conductivity, which makes it useful in electrical and electronic applications. Moreover, Alloy 400 Bars are highly resistant to wear and tear and, therefore, durable in harsh or demanding environments.

Monel 400 Bars Mechanical Properties:

UNS N04400 Round Bars are known for their superior mechanical properties. The bars have a tensile strength that ranges between 480 MPa and 550 MPa, making them highly suitable for high-stress applications. Additionally, the bars have a yield strength ranging from 170 MPa to 240 Mpa and a modulus of elasticity of 179 GPa.

Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Monel 400 8.8 g/cm3 1350 °C (2460 °F) Psi – 80,000 , MPa – 550 Psi – 35,000 , MPa – 240 40 %

Monel 400 Bars Equivalent

Monel 400 2.4360 N04400 NW 4400 NA 13 МНЖМц 28-2,5-1,5 NU-30M NiCu30Fe

Monel 400 Bars Uses:

2.4068 Alloy 400 Bars have a range of industrial applications, including chemical, petrochemical, marine engineering, oil and gas industries, and more. The alloy’s excellent resistance to corrosion makes it ideal for marine applications, seawater handling, and heat exchangers in oil and gas refineries. Additionally, Monel 400 Bars manufacture valves, pumps, and fittings that require high strength and excellent corrosion resistance.

Monel 400 Bars Heat Treatment:

Monel 400 Hex Bar can be treated with various heat treatment methods to enhance their properties. Annealing, for example, is done to achieve maximum ductility and soften the alloy’s properties. Quenching and tempering, on the other hand, improve the strength and hardness of the bars. Precipitation hardening is another method used to increase the bars’ strength.

Monel 400 Bars Corrosion Resistance:

UNS N04400 Bars demonstrate excellent resistance to a wide range of corrosive environments. The alloy resists pitting, crevice corrosion, and stress corrosion cracking in chloride environments. Monel 400 Bars can also withstand sulfuric and hydrochloric acids, making them ideal for chemical processing applications.



UNS N04400 Bright Bar are an excellent choice for high-stress applications that demand superior corrosion resistance. The nickel-copper alloy is durable, strong, and ductile and can be used in various industries, including chemical, petrochemical, marine engineering, oil and gas. The bars’ unique composition and properties make them suitable for harsh environments that would corrode other materials. Monel 400 bars can also be treated with heat to enhance their properties further. So the next time you search for a high-performance alloy, consider Monel 400 bars.

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