Extra-Hard (H06) C19700 Copper
H06 C19700 copper is C19700 copper in the H06 (extra hard) temper. The graph bars on the material properties cards below compare H06 C19700 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
4.1 %
Poisson's Ratio
0.34
Rockwell B Hardness
73
Rockwell Superficial 30T Hardness
70
Shear Modulus
43 GPa 6.3 x 106 psi
Shear Strength
280 MPa 40 x 103 psi
Tensile Strength: Ultimate (UTS)
480 MPa 70 x 103 psi
Tensile Strength: Yield (Proof)
460 MPa 67 x 103 psi
Thermal Properties
Latent Heat of Fusion
210 J/g
Maximum Temperature: Mechanical
200 °C 390 °F
Melting Completion (Liquidus)
1090 °C 2000 °F
Melting Onset (Solidus)
1040 °C 1900 °F
Specific Heat Capacity
390 J/kg-K 0.093 BTU/lb-°F
Thermal Conductivity
250 W/m-K 140 BTU/h-ft-°F
Thermal Expansion
17 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
86 % IACS
Electrical Conductivity: Equal Weight (Specific)
87 % 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)
19 MJ/m3
Resilience: Unit (Modulus of Resilience)
920 kJ/m3
Stiffness to Weight: Axial
7.2 points
Stiffness to Weight: Bending
18 points
Strength to Weight: Axial
15 points
Strength to Weight: Bending
15 points
Thermal Diffusivity
73 mm2/s
Thermal Shock Resistance
17 points
Alloy Composition
| Cu | 97.4 to 99.59 | |
| Fe | 0.3 to 1.2 | |
| P | 0.1 to 0.4 | |
| Mg | 0.010 to 0.2 | |
| Sn | 0 to 0.2 | |
| Zn | 0 to 0.2 | |
| Mn | 0 to 0.050 | |
| Ni | 0 to 0.050 | |
| Co | 0 to 0.050 | |
| 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 B465: Standard Specification for Copper-Iron Alloy Plate, Sheet, Strip, and Rolled Bar
Copper Alloys: Preparation, Properties and Applications, Michael Naboka and Jennifer Giordano (editors), 2013