UNS C10800 Oxygen-Free Low-Phosphorus Copper
C10800 copper is a lightly alloyed grade of copper, formulated for primary forming into wrought products. C10800 is the UNS number for this material. Additionally, the AFNOR (French) designation is Cu-b2. It can have a moderately low tensile strength among the wrought coppers in the database.
The properties of C10800 copper include ten common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare C10800 copper to: wrought 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
Elastic (Young's, Tensile) Modulus
120 GPa 17 x 106 psi
Elongation at Break
4.0 to 50 %
Poisson's Ratio
0.34
Rockwell B Hardness
10 to 60
Rockwell F Hardness
40 to 95
Rockwell Superficial 30T Hardness
27 to 63
Shear Modulus
43 GPa 6.3 x 106 psi
Shear Strength
150 to 200 MPa 22 to 29 x 103 psi
Tensile Strength: Ultimate (UTS)
220 to 380 MPa 32 to 55 x 103 psi
Tensile Strength: Yield (Proof)
75 to 370 MPa 11 to 54 x 103 psi
Thermal Properties
Latent Heat of Fusion
210 J/g
Maximum Temperature: Mechanical
200 °C 390 °F
Melting Completion (Liquidus)
1080 °C 1980 °F
Melting Onset (Solidus)
1080 °C 1980 °F
Specific Heat Capacity
390 J/kg-K 0.092 BTU/lb-°F
Thermal Conductivity
350 W/m-K 200 BTU/h-ft-°F
Thermal Expansion
17 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
92 % IACS
Electrical Conductivity: Equal Weight (Specific)
92 % IACS
Otherwise Unclassified Properties
Base Metal Price
31 % relative
Density
9.0 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)
15 to 88 MJ/m3
Resilience: Unit (Modulus of Resilience)
24 to 600 kJ/m3
Stiffness to Weight: Axial
7.2 points
Stiffness to Weight: Bending
18 points
Strength to Weight: Axial
6.8 to 12 points
Strength to Weight: Bending
9.1 to 13 points
Thermal Diffusivity
100 mm2/s
Thermal Shock Resistance
7.8 to 13 points
Alloy Composition
Among wrought copper alloys, the composition of C10800 copper is notable for including phosphorus (P). Phosphorus is used as an alloy deoxidizer, and to reduce vulnerability to dezincification.
| Cu | 99.95 to 99.995 | |
| P | 0.0050 to 0.012 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
ASTM B111: Standard Specification for Copper and Copper-Alloy Seamless Condenser Tubes and Ferrule Stock
ASTM B152: Standard Specification for Copper Sheet, Strip, Plate, and Rolled Bar