UNS C14200 Phosphorus-Deoxidized Arsenical Copper
C14200 copper is a lightly alloyed grade of copper, formulated for primary forming into wrought products. C14200 is the UNS number for this material. Additionally, the British Standard (BS) designation is C107. Older literature may refer to this material as DPA, but this is now discouraged.
It can have a moderately low tensile strength among wrought coppers. In addition, it has a moderately low thermal conductivity and a moderately low electrical conductivity.
The properties of C14200 copper include five 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 C14200 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
8.0 to 45 %
Fatigue Strength
76 to 130 MPa 11 to 19 x 103 psi
Poisson's Ratio
0.34
Rockwell B Hardness
35 to 60
Rockwell F Hardness
40 to 95
Rockwell Superficial 30T Hardness
45 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 370 MPa 32 to 53 x 103 psi
Tensile Strength: Yield (Proof)
75 to 340 MPa 11 to 49 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)
1030 °C 1880 °F
Specific Heat Capacity
390 J/kg-K 0.092 BTU/lb-°F
Thermal Conductivity
190 W/m-K 110 BTU/h-ft-°F
Thermal Expansion
17 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
45 % IACS
Electrical Conductivity: Equal Weight (Specific)
45 % 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)
29 to 83 MJ/m3
Resilience: Unit (Modulus of Resilience)
24 to 500 kJ/m3
Stiffness to Weight: Axial
7.2 points
Stiffness to Weight: Bending
18 points
Strength to Weight: Axial
6.8 to 11 points
Strength to Weight: Bending
9.1 to 13 points
Thermal Diffusivity
56 mm2/s
Thermal Shock Resistance
7.9 to 13 points
Alloy Composition
Among wrought copper alloys, the composition of C14200 copper is notable for including arsenic (As) and phosphorus (P). Arsenic is used to protect the alloy against dezincification. Phosphorus is used as an alloy deoxidizer, and to reduce vulnerability to dezincification.
| Cu | 99.4 to 99.835 | |
| As | 0.15 to 0.5 | |
| P | 0.015 to 0.040 |
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
Copper Alloys: Preparation, Properties and Applications, Michael Naboka and Jennifer Giordano (editors), 2013