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As Hot Rolled (M20) C70600 Copper-Nickel

M20 C70600 copper-nickel is C70600 copper-nickel in the M20 (as hot rolled) condition. The graph bars on the material properties cards below compare M20 C70600 copper-nickel to: wrought copper-nickels (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 18 x 106 psi

Poisson's Ratio

0.34

Shear Modulus

46 GPa 6.7 x 106 psi

Tensile Strength: Ultimate (UTS)

350 MPa 51 x 103 psi

Thermal Properties

Latent Heat of Fusion

220 J/g

Maximum Temperature: Mechanical

220 °C 430 °F

Melting Completion (Liquidus)

1150 °C 2100 °F

Melting Onset (Solidus)

1100 °C 2010 °F

Specific Heat Capacity

390 J/kg-K 0.094 BTU/lb-°F

Thermal Conductivity

44 W/m-K 26 BTU/h-ft-°F

Thermal Expansion

17 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

9.8 % IACS

Electrical Conductivity: Equal Weight (Specific)

9.9 % IACS

Otherwise Unclassified Properties

Base Metal Price

33 % relative

Calomel Potential

-280 mV

Density

8.9 g/cm3 560 lb/ft3

Embodied Carbon

3.4 kg CO2/kg material

Embodied Energy

51 MJ/kg 22 x 103 BTU/lb

Embodied Water

300 L/kg 36 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

6.5 to 160 MJ/m3

Resilience: Unit (Modulus of Resilience)

16 to 290 kJ/m3

Stiffness to Weight: Axial

7.7 points

Stiffness to Weight: Bending

19 points

Strength to Weight: Axial

11 points

Strength to Weight: Bending

12 points

Thermal Diffusivity

13 mm2/s

Thermal Shock Resistance

12 points

Alloy Composition

Copper (Cu)Cu 84.7 to 90
Nickel (Ni)Ni 9.0 to 11
Iron (Fe)Fe 1.0 to 1.8
Manganese (Mn)Mn 0 to 1.0
Zinc (Zn)Zn 0 to 1.0
Lead (Pb)Pb 0 to 0.050
Residualsres. 0 to 0.5

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

Followup Questions

Further Reading

ASTM B122: Standard Specification for Copper-Nickel-Tin Alloy, Copper-Nickel-Zinc Alloy (Nickel Silver), and Copper-Nickel Alloy Plate, Sheet, Strip, and Rolled Bar

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

Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993