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As Hot Rolled (M20) C12900 Copper

M20 C12900 copper is C12900 copper in the M20 (as hot rolled) condition. The graph bars on the material properties cards below compare M20 C12900 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

50 %

Poisson's Ratio

0.34

Rockwell F Hardness

42

Shear Modulus

43 GPa 6.3 x 106 psi

Shear Strength

150 MPa 22 x 103 psi

Tensile Strength: Ultimate (UTS)

230 MPa 33 x 103 psi

Tensile Strength: Yield (Proof)

75 MPa 11 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

380 W/m-K 220 BTU/h-ft-°F

Thermal Expansion

17 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

98 % IACS

Electrical Conductivity: Equal Weight (Specific)

98 % IACS

Otherwise Unclassified Properties

Base Metal Price

32 % 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

330 L/kg 39 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

88 MJ/m3

Resilience: Unit (Modulus of Resilience)

24 kJ/m3

Stiffness to Weight: Axial

7.2 points

Stiffness to Weight: Bending

18 points

Strength to Weight: Axial

7.0 points

Strength to Weight: Bending

9.2 points

Thermal Diffusivity

110 mm2/s

Thermal Shock Resistance

8.0 points

Alloy Composition

Copper (Cu)Cu 99.88 to 100
Silver (Ag)Ag 0 to 0.054
Nickel (Ni)Ni 0 to 0.050
Tellurium (Te)Te 0 to 0.025
Arsenic (As)As 0 to 0.012
Lead (Pb)Pb 0 to 0.0040
Bismuth (Bi)Bi 0 to 0.0030
Antimony (Sb)Sb 0 to 0.0030

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

Followup Questions

Further Reading

CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015