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EN CC140C (CuCr1-C) Chromium Copper

CC140C copper is a lightly alloyed grade of copper, formulated for casting. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. CC140C is the EN numeric designation for this material. CuCr1-C is the EN chemical designation.

It has a very low ductility among cast coppers. In addition, it has a moderately low electrical conductivity and a moderately low thermal conductivity.

The graph bars on the material properties cards below compare CC140C copper to: cast coppers (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

110

Elastic (Young's, Tensile) Modulus

120 GPa 17 x 106 psi

Elongation at Break

11 %

Poisson's Ratio

0.34

Shear Modulus

44 GPa 6.3 x 106 psi

Tensile Strength: Ultimate (UTS)

340 MPa 49 x 103 psi

Tensile Strength: Yield (Proof)

230 MPa 33 x 103 psi

Thermal Properties

Latent Heat of Fusion

210 J/g

Maximum Temperature: Mechanical

200 °C 390 °F

Melting Completion (Liquidus)

1100 °C 2000 °F

Melting Onset (Solidus)

1040 °C 1910 °F

Specific Heat Capacity

390 J/kg-K 0.092 BTU/lb-°F

Thermal Conductivity

310 W/m-K 180 BTU/h-ft-°F

Thermal Expansion

17 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

77 % IACS

Electrical Conductivity: Equal Weight (Specific)

78 % IACS

Otherwise Unclassified Properties

Base Metal Price

31 % relative

Density

8.9 g/cm3 560 lb/ft3

Embodied Carbon

2.6 kg CO2/kg material

Embodied Energy

41 MJ/kg 18 x 103 BTU/lb

Embodied Water

310 L/kg 37 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

34 MJ/m3

Resilience: Unit (Modulus of Resilience)

220 kJ/m3

Stiffness to Weight: Axial

7.3 points

Stiffness to Weight: Bending

18 points

Strength to Weight: Axial

10 points

Strength to Weight: Bending

12 points

Thermal Diffusivity

89 mm2/s

Thermal Shock Resistance

12 points

Alloy Composition

Among cast copper alloys, the composition of CC140C copper is notable for including chromium (Cr). Chromium additions permits certain types of heat treatment to improve mechanical strength.

Copper (Cu) 98.8 to 99.6
Chromium (Cr) 0.4 to 1.2

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