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.
| Cu | 98.8 to 99.6 | |
| 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