Monel 400 (NiCu30Fe, 2.4360, N04400, NA13)

Monel 400 is an alloy of nickel, further classified as a wrought nickel. 2.4360 is the EN numeric designation for this material. NiCu30Fe is the EN chemical designation. N04400 is the UNS number. NA13 is the British Standard (BS) designation. And Monel 400 is the industry name.

It has three common variants, each represented as a separate material.

Material Properties

Base Metal Price89 % rel

Calomel Potential-80 mV

Curie Temperature43 °C (110 °F)

Density9.0 g/cm3 (560 lb/ft3)

Elastic (Young's, Tensile) Modulus180 GPa (26 x 106 psi)

Electrical Conductivity33 % IACS

Electrical Resistivity Order of Magnitude-7 10x Ω-m

Elongation at Break20 to 41 %

Melting Onset (Solidus)1300 °C (2370 °F)

Poisson's Ratio0.32

Shear Modulus65 GPa (9.4 x 106 psi)

Specific Heat Capacity430 J/kg-K

Strength to Weight Ratio60 to 88 kN-m/kg

Tensile Strength: Ultimate (UTS)540 to 790 MPa (78 to 110 x 103 psi)

Tensile Strength: Yield (Proof)220 to 600 MPa (32 to 87 x 103 psi)

Thermal Conductivity23 W/m-K

Thermal Diffusivity5.9

Thermal Expansion14 µm/m-K

Alloy Composition

Nickel (Ni)63 to 72 %

Copper (Cu)28 to 34 %

Iron (Fe)0 to 2.5 %

Manganese (Mn)0 to 2.0 %

Silicon (Si)0 to 0.5 %

Carbon (C)0 to 0.3 %

Sulfur (S)0 to 0.024 %

Further Reading

ASTM B127: Standard Specification for Nickel-Copper Alloy (UNS N04400) Plate, Sheet, and Strip

ASTM B164: Standard Specification for Nickel-Copper Alloy Rod, Bar, and Wire

ASTM B165: Standard Specification of Nickel-Copper Alloy (UNS N04400) Seamless Pipe and Tube

ASTM B564: Standard Specification for Nickel Alloy Forgings

ASTM B725: Standard Specification for Welded Nickel (UNS N02200/UNS N02201) and Nickel Copper Alloy (UNS N04400) Pipe