H10 C10500 Copper vs. H10 C12900 Copper
Both H10 C10500 copper and H10 C12900 copper are copper alloys. Both are furnished in the H10 (extra spring) temper. Their average alloy composition is basically identical.
For each property being compared, the top bar is H10 C10500 copper and the bottom bar is H10 C12900 copper.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 120 |
| Elongation at Break, % | 4.0 | |
| 4.0 |
| Poisson's Ratio | 0.34 | |
| 0.34 |
| Rockwell B Hardness | 62 | |
| 62 |
| Rockwell F Hardness | 99 | |
| 95 |
| Rockwell Superficial 30T Hardness | 67 | |
| 64 |
| Shear Modulus, GPa | 43 | |
| 43 |
| Shear Strength, MPa | 200 | |
| 200 |
| Tensile Strength: Ultimate (UTS), MPa | 400 | |
| 390 |
| Tensile Strength: Yield (Proof), MPa | 400 | |
| 380 |
Thermal Properties
| Latent Heat of Fusion, J/g | 210 | |
| 210 |
| Maximum Temperature: Mechanical, °C | 200 | |
| 200 |
| Melting Completion (Liquidus), °C | 1080 | |
| 1080 |
| Melting Onset (Solidus), °C | 1080 | |
| 1030 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 390 |
| Thermal Conductivity, W/m-K | 390 | |
| 380 |
| Thermal Expansion, µm/m-K | 17 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 100 | |
| 98 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 100 | |
| 98 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 32 | |
| 32 |
| Density, g/cm3 | 9.0 | |
| 9.0 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 2.6 |
| Embodied Energy, MJ/kg | 42 | |
| 41 |
| Embodied Water, L/kg | 350 | |
| 330 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 16 | |
| 16 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 680 | |
| 640 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 18 | |
| 18 |
| Strength to Weight: Axial, points | 12 | |
| 12 |
| Strength to Weight: Bending, points | 14 | |
| 13 |
| Thermal Diffusivity, mm2/s | 110 | |
| 110 |
| Thermal Shock Resistance, points | 14 | |
| 14 |
Alloy Composition
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| Antimony (Sb), % | 0 | |
| 0 to 0.0030 |
| Arsenic (As), % | 0 | |
| 0 to 0.012 |
| Bismuth (Bi), % | 0 | |
| 0 to 0.0030 |
| Copper (Cu), % | 99.89 to 99.966 | |
| 99.88 to 100 |
| Lead (Pb), % | 0 | |
| 0 to 0.0040 |
| Nickel (Ni), % | 0 | |
| 0 to 0.050 |
| Oxygen (O), % | 0 to 0.0010 | |
| 0 |
| Silver (Ag), % | 0.034 to 0.060 | |
| 0 to 0.054 |
| Tellurium (Te), % | 0 | |
| 0 to 0.025 |
| Residuals, % | 0 to 0.050 | |
| 0 |