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EN CC383H (CuNi30Fe1Mn1NbSi-C) Copper-Nickel

CC383H copper-nickel is a copper-nickel alloy formulated for casting. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. CC383H is the EN numeric designation for this material. CuNi30Fe1Mn1NbSi-C is the EN chemical designation.

It has a moderately high heat capacity among cast copper-nickels. In addition, it has a moderately high base cost and a moderately high melting temperature.

The graph bars on the material properties cards below compare CC383H copper-nickel to: cast copper-nickels (top), all copper alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Brinell Hardness


Elastic (Young's, Tensile) Modulus

140 GPa 20 x 106 psi

Elongation at Break

20 %

Poisson's Ratio


Shear Modulus

52 GPa 7.5 x 106 psi

Tensile Strength: Ultimate (UTS)

490 MPa 71 x 103 psi

Tensile Strength: Yield (Proof)

260 MPa 38 x 103 psi

Thermal Properties

Latent Heat of Fusion

240 J/g

Maximum Temperature: Mechanical

260 °C 500 °F

Melting Completion (Liquidus)

1180 °C 2160 °F

Melting Onset (Solidus)

1130 °C 2060 °F

Specific Heat Capacity

410 J/kg-K 0.1 BTU/lb-°F

Thermal Conductivity

29 W/m-K 17 BTU/h-ft-°F

Thermal Expansion

15 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

5.2 % IACS

Electrical Conductivity: Equal Weight (Specific)

5.3 % IACS

Otherwise Unclassified Properties

Base Metal Price

44 % relative


8.9 g/cm3 550 lb/ft3

Embodied Carbon

5.7 kg CO2/kg material

Embodied Energy

83 MJ/kg 36 x 103 BTU/lb

Embodied Water

280 L/kg 34 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

84 MJ/m3

Resilience: Unit (Modulus of Resilience)

250 kJ/m3

Stiffness to Weight: Axial

8.6 points

Stiffness to Weight: Bending

19 points

Strength to Weight: Axial

15 points

Strength to Weight: Bending

16 points

Thermal Diffusivity

8.1 mm2/s

Thermal Shock Resistance

17 points

Alloy Composition

Among cast copper alloys, the composition of CC383H copper-nickel is notable for including cadmium (Cd) and tellurium (Te). Cadmium is used to improve strength at elevated temperatures. Tellurium is used to improve machinability.

Copper (Cu)Cu 64 to 69.1
Nickel (Ni)Ni 29 to 31
Iron (Fe)Fe 0.5 to 1.5
Manganese (Mn)Mn 0.6 to 1.2
Niobium (Nb)Nb 0.5 to 1.0
Silicon (Si)Si 0.3 to 0.7
Zinc (Zn)Zn 0 to 0.5
Carbon (C)C 0 to 0.030
Cadmium (Cd)Cd 0 to 0.020
Selenium (Se)Se 0 to 0.010
Magnesium (Mg)Mg 0 to 0.010
Aluminum (Al)Al 0 to 0.010
Bismuth (Bi)Bi 0 to 0.010
Lead (Pb)Pb 0 to 0.010
Boron (B)B 0 to 0.010
Sulfur (S)S 0 to 0.010
Phosphorus (P)P 0 to 0.010
Tellurium (Te)Te 0 to 0.010

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Similar Alloys

Further Reading

EN 1982: Copper and copper alloys - Ingots and castings