MakeItFrom.com
Menu (ESC)

UNS C14700 Sulfurized Copper

C14700 copper is a lightly alloyed grade of copper, formulated for primary forming into wrought products. It can have a moderately low tensile strength and a moderately high ductility among wrought coppers.

The properties of C14700 copper include four 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 C14700 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

9.1 to 35 %

Poisson's Ratio

0.34

Shear Modulus

43 GPa 6.3 x 106 psi

Shear Strength

160 to 190 MPa 23 to 28 x 103 psi

Tensile Strength: Ultimate (UTS)

240 to 320 MPa 34 to 47 x 103 psi

Tensile Strength: Yield (Proof)

85 to 250 MPa 12 to 37 x 103 psi

Thermal Properties

Latent Heat of Fusion

210 J/g

Maximum Temperature: Mechanical

200 °C 390 °F

Melting Completion (Liquidus)

1080 °C 1970 °F

Melting Onset (Solidus)

1070 °C 1950 °F

Specific Heat Capacity

390 J/kg-K 0.092 BTU/lb-°F

Thermal Conductivity

370 W/m-K 220 BTU/h-ft-°F

Thermal Expansion

17 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

95 % IACS

Electrical Conductivity: Equal Weight (Specific)

96 % IACS

Otherwise Unclassified Properties

Base Metal Price

30 % 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)

25 to 65 MJ/m3

Resilience: Unit (Modulus of Resilience)

31 to 280 kJ/m3

Stiffness to Weight: Axial

7.2 points

Stiffness to Weight: Bending

18 points

Strength to Weight: Axial

7.3 to 10 points

Strength to Weight: Bending

9.5 to 12 points

Thermal Diffusivity

110 mm2/s

Thermal Shock Resistance

8.4 to 12 points

Alloy Composition

Among wrought copper alloys, the composition of C14700 copper is notable for including sulfur (S). Sulfur is used to improve machinability at the cost of a decrease in electrical conductivity.

Copper (Cu) 99.395 to 99.798
Sulfur (S) 0.2 to 0.5
Phosphorus (P) 0.0020 to 0.0050
Residuals 0 to 0.1

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

Followup Questions

Similar Alloys

Further Reading

ASTM B301: Standard Specification for Free-Cutting Copper Rod, Bar, Wire, and Shapes

ASTM B124: Standard Specification for Copper and Copper Alloy Forging Rod, Bar, and Shapes

ASTM B283: Standard Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed)

Copper Alloys: Preparation, Properties and Applications, Michael Naboka and Jennifer Giordano (editors), 2013

Copper: Its Trade, Manufacture, Use, and Environmental Status, Gunter Joseph, 2001

ASM Specialty Handbook: Copper and Copper Alloys, J. R. Davis (editor), 2001