C68800 Brass vs. C22600 Bronze
Both C68800 brass and C22600 bronze are copper alloys. They have 86% of their average alloy composition in common.
For each property being compared, the top bar is C68800 brass and the bottom bar is C22600 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Elongation at Break, % | 2.0 to 36 | |
| 2.5 to 33 |
| Poisson's Ratio | 0.32 | |
| 0.33 |
| Rockwell B Hardness | 81 to 99 | |
| 46 to 85 |
| Rockwell Superficial 30T Hardness | 71 to 83 | |
| 51 to 77 |
| Shear Modulus, GPa | 41 | |
| 42 |
| Shear Strength, MPa | 380 to 510 | |
| 220 to 320 |
| Tensile Strength: Ultimate (UTS), MPa | 570 to 890 | |
| 330 to 570 |
| Tensile Strength: Yield (Proof), MPa | 390 to 790 | |
| 270 to 490 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 200 |
| Maximum Temperature: Mechanical, °C | 160 | |
| 170 |
| Melting Completion (Liquidus), °C | 960 | |
| 1040 |
| Melting Onset (Solidus), °C | 950 | |
| 1000 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 390 |
| Thermal Conductivity, W/m-K | 40 | |
| 170 |
| Thermal Expansion, µm/m-K | 19 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 18 | |
| 40 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 20 | |
| 42 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 26 | |
| 28 |
| Density, g/cm3 | 8.2 | |
| 8.7 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 2.6 |
| Embodied Energy, MJ/kg | 48 | |
| 42 |
| Embodied Water, L/kg | 350 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 16 to 180 | |
| 14 to 100 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 710 to 2860 | |
| 330 to 1070 |
| Stiffness to Weight: Axial, points | 7.3 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 19 | |
| 19 |
| Strength to Weight: Axial, points | 19 to 30 | |
| 11 to 18 |
| Strength to Weight: Bending, points | 19 to 25 | |
| 12 to 18 |
| Thermal Diffusivity, mm2/s | 12 | |
| 52 |
| Thermal Shock Resistance, points | 19 to 30 | |
| 11 to 19 |
Alloy Composition
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| Aluminum (Al), % | 3.0 to 3.8 | |
| 0 |
| Cobalt (Co), % | 0.25 to 0.55 | |
| 0 |
| Copper (Cu), % | 70.8 to 75.5 | |
| 86 to 89 |
| Iron (Fe), % | 0 to 0.2 | |
| 0 to 0.050 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 to 0.050 |
| Zinc (Zn), % | 21.3 to 24.1 | |
| 10.7 to 14 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.2 |