C22000 Bronze vs. C19700 Copper
Both C22000 bronze and C19700 copper are copper alloys. They have a moderately high 90% of their average alloy composition in common.
For each property being compared, the top bar is C22000 bronze and the bottom bar is C19700 copper.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 120 |
| Elongation at Break, % | 1.9 to 45 | |
| 2.4 to 13 |
| Poisson's Ratio | 0.33 | |
| 0.34 |
| Rockwell B Hardness | 42 to 81 | |
| 67 to 75 |
| Rockwell Superficial 30T Hardness | 47 to 73 | |
| 65 to 72 |
| Shear Modulus, GPa | 42 | |
| 43 |
| Shear Strength, MPa | 200 to 300 | |
| 240 to 300 |
| Tensile Strength: Ultimate (UTS), MPa | 260 to 520 | |
| 400 to 530 |
| Tensile Strength: Yield (Proof), MPa | 69 to 500 | |
| 330 to 520 |
Thermal Properties
| Latent Heat of Fusion, J/g | 200 | |
| 210 |
| Maximum Temperature: Mechanical, °C | 180 | |
| 200 |
| Melting Completion (Liquidus), °C | 1040 | |
| 1090 |
| Melting Onset (Solidus), °C | 1020 | |
| 1040 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 390 |
| Thermal Conductivity, W/m-K | 190 | |
| 250 |
| Thermal Expansion, µm/m-K | 18 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 44 | |
| 86 to 88 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 45 | |
| 87 to 89 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 29 | |
| 30 |
| Density, g/cm3 | 8.7 | |
| 8.9 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 2.6 |
| Embodied Energy, MJ/kg | 42 | |
| 41 |
| Embodied Water, L/kg | 310 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 3.7 to 230 | |
| 12 to 49 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 21 to 1110 | |
| 460 to 1160 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 18 | |
| 18 |
| Strength to Weight: Axial, points | 8.1 to 17 | |
| 12 to 16 |
| Strength to Weight: Bending, points | 10 to 17 | |
| 14 to 16 |
| Thermal Diffusivity, mm2/s | 56 | |
| 73 |
| Thermal Shock Resistance, points | 8.8 to 18 | |
| 14 to 19 |
Alloy Composition
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| Cobalt (Co), % | 0 | |
| 0 to 0.050 |
| Copper (Cu), % | 89 to 91 | |
| 97.4 to 99.59 |
| Iron (Fe), % | 0 to 0.050 | |
| 0.3 to 1.2 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 to 0.050 |
| Magnesium (Mg), % | 0 | |
| 0.010 to 0.2 |
| Manganese (Mn), % | 0 | |
| 0 to 0.050 |
| Nickel (Ni), % | 0 | |
| 0 to 0.050 |
| Phosphorus (P), % | 0 | |
| 0.1 to 0.4 |
| Tin (Sn), % | 0 | |
| 0 to 0.2 |
| Zinc (Zn), % | 8.7 to 11 | |
| 0 to 0.2 |
| Residuals, % | 0 to 0.2 | |
| 0 to 0.2 |