M20 C23000 Brass vs. M20 C65500 Bronze
Both M20 C23000 brass and M20 C65500 bronze are copper alloys. Both are furnished in the M20 (as hot rolled) condition. They have 86% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is M20 C23000 brass and the bottom bar is M20 C65500 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 120 |
| Poisson's Ratio | 0.33 | |
| 0.34 |
| Shear Modulus, GPa | 42 | |
| 43 |
| Tensile Strength: Ultimate (UTS), MPa | 290 | |
| 440 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 260 |
| Maximum Temperature: Mechanical, °C | 170 | |
| 200 |
| Melting Completion (Liquidus), °C | 1030 | |
| 1030 |
| Melting Onset (Solidus), °C | 990 | |
| 970 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 400 |
| Thermal Conductivity, W/m-K | 160 | |
| 36 |
| Thermal Expansion, µm/m-K | 19 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 37 | |
| 7.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 39 | |
| 7.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 28 | |
| 29 |
| Calomel Potential, mV | -350 | |
| -270 |
| Density, g/cm3 | 8.6 | |
| 8.6 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 2.7 |
| Embodied Energy, MJ/kg | 43 | |
| 42 |
| Embodied Water, L/kg | 310 | |
| 300 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 6.2 to 260 | |
| 11 to 450 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 31 to 1040 | |
| 62 to 790 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 7.5 |
| Stiffness to Weight: Bending, points | 19 | |
| 19 |
| Strength to Weight: Axial, points | 9.4 | |
| 14 |
| Strength to Weight: Bending, points | 11 | |
| 15 |
| Thermal Diffusivity, mm2/s | 48 | |
| 10 |
| Thermal Shock Resistance, points | 9.9 | |
| 15 |
Alloy Composition
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| Copper (Cu), % | 84 to 86 | |
| 91.5 to 96.7 |
| Iron (Fe), % | 0 to 0.050 | |
| 0 to 0.8 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 to 0.050 |
| Manganese (Mn), % | 0 | |
| 0.5 to 1.3 |
| Nickel (Ni), % | 0 | |
| 0 to 0.6 |
| Silicon (Si), % | 0 | |
| 2.8 to 3.8 |
| Zinc (Zn), % | 13.7 to 16 | |
| 0 to 1.5 |
| Residuals, % | 0 to 0.2 | |
| 0 to 0.5 |