Spring-Tempered (H08) C12200 Copper
H08 C12200 copper is C12200 copper in the H08 (spring) temper. It has the second highest strength compared to the other variants of C12200 copper. The graph bars on the material properties cards below compare H08 C12200 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
4.0 %
Fatigue Strength
97 MPa 14 x 103 psi
Poisson's Ratio
0.34
Rockwell B Hardness
60
Rockwell F Hardness
94
Rockwell Superficial 30T Hardness
63
Shear Modulus
43 GPa 6.3 x 106 psi
Shear Strength
200 MPa 29 x 103 psi
Tensile Strength: Ultimate (UTS)
380 MPa 54 x 103 psi
Tensile Strength: Yield (Proof)
350 MPa 50 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
340 W/m-K 200 BTU/h-ft-°F
Thermal Expansion
17 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
85 % IACS
Electrical Conductivity: Equal Weight (Specific)
85 % IACS
Otherwise Unclassified Properties
Base Metal Price
31 % 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
310 L/kg 37 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
15 MJ/m3
Resilience: Unit (Modulus of Resilience)
510 kJ/m3
Stiffness to Weight: Axial
7.2 points
Stiffness to Weight: Bending
18 points
Strength to Weight: Axial
12 points
Strength to Weight: Bending
13 points
Thermal Diffusivity
98 mm2/s
Thermal Shock Resistance
13 points
Alloy Composition
| Cu | 99.9 to 99.985 | |
| P | 0.015 to 0.040 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
ASTM B152: Standard Specification for Copper Sheet, Strip, Plate, and Rolled Bar
Copper Alloys: Preparation, Properties and Applications, Michael Naboka and Jennifer Giordano (editors), 2013
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