Light Drawn (H55) C72200 Copper-Nickel
H55 C72200 copper-nickel is C72200 copper-nickel in the H55 (light drawn) temper. The graph bars on the material properties cards below compare H55 C72200 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
130 GPa 19 x 106 psi
Poisson's Ratio
0.33
Shear Modulus
48 GPa 7.0 x 106 psi
Tensile Strength: Ultimate (UTS)
390 MPa 56 x 103 psi
Tensile Strength: Yield (Proof)
350 MPa 51 x 103 psi
Thermal Properties
Latent Heat of Fusion
220 J/g
Maximum Temperature: Mechanical
230 °C 450 °F
Melting Completion (Liquidus)
1180 °C 2150 °F
Melting Onset (Solidus)
1120 °C 2050 °F
Specific Heat Capacity
400 J/kg-K 0.095 BTU/lb-°F
Thermal Conductivity
34 W/m-K 20 BTU/h-ft-°F
Thermal Expansion
16 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
6.5 % IACS
Electrical Conductivity: Equal Weight (Specific)
6.6 % IACS
Otherwise Unclassified Properties
Base Metal Price
36 % relative
Density
8.9 g/cm3 560 lb/ft3
Embodied Carbon
3.9 kg CO2/kg material
Embodied Energy
59 MJ/kg 25 x 103 BTU/lb
Embodied Water
300 L/kg 35 gal/lb
Common Calculations
Resilience: Unit (Modulus of Resilience)
490 kJ/m3
Stiffness to Weight: Axial
8.0 points
Stiffness to Weight: Bending
19 points
Strength to Weight: Axial
12 points
Strength to Weight: Bending
13 points
Thermal Diffusivity
9.6 mm2/s
Thermal Shock Resistance
13 points
Alloy Composition
| Cu | 78.1 to 84.2 | |
| Ni | 15 to 18 | |
| Fe | 0.5 to 1.0 | |
| Mn | 0 to 1.0 | |
| Cr | 0.3 to 0.7 | |
| Zn | 0 to 1.0 | |
| Pb | 0 to 0.050 | |
| res. | 0 to 0.2 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
ASTM B111: Standard Specification for Copper and Copper-Alloy Seamless Condenser Tubes and Ferrule Stock
ASM Specialty Handbook: Copper and Copper Alloys, J. R. Davis (editor), 2001
CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015