M11 C48500 Brass vs. M11 C64200 Bronze
Both M11 C48500 brass and M11 C64200 bronze are copper alloys. Both are furnished in the M11 (as forged and quenched) condition. They have 61% of their average alloy composition in common.
For each property being compared, the top bar is M11 C48500 brass and the bottom bar is M11 C64200 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 110 |
| Elongation at Break, % | 40 | |
| 35 |
| Poisson's Ratio | 0.31 | |
| 0.34 |
| Rockwell B Hardness | 55 | |
| 77 |
| Shear Modulus, GPa | 39 | |
| 42 |
| Shear Strength, MPa | 290 | |
| 380 |
| Tensile Strength: Ultimate (UTS), MPa | 430 | |
| 570 |
| Tensile Strength: Yield (Proof), MPa | 170 | |
| 290 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 210 |
| Melting Completion (Liquidus), °C | 900 | |
| 1000 |
| Melting Onset (Solidus), °C | 890 | |
| 980 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 430 |
| Thermal Conductivity, W/m-K | 120 | |
| 45 |
| Thermal Expansion, µm/m-K | 21 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 26 | |
| 8.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 29 | |
| 8.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 29 |
| Density, g/cm3 | 8.1 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 3.0 |
| Embodied Energy, MJ/kg | 46 | |
| 50 |
| Embodied Water, L/kg | 330 | |
| 370 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 | |
| 170 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 130 | |
| 360 |
| Stiffness to Weight: Axial, points | 7.1 | |
| 7.5 |
| Stiffness to Weight: Bending, points | 19 | |
| 19 |
| Strength to Weight: Axial, points | 15 | |
| 19 |
| Strength to Weight: Bending, points | 16 | |
| 18 |
| Thermal Diffusivity, mm2/s | 38 | |
| 13 |
| Thermal Shock Resistance, points | 14 | |
| 21 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 6.3 to 7.6 |
| Arsenic (As), % | 0 | |
| 0 to 0.15 |
| Copper (Cu), % | 59 to 62 | |
| 88.2 to 92.2 |
| Iron (Fe), % | 0 to 0.1 | |
| 0 to 0.3 |
| Lead (Pb), % | 1.3 to 2.2 | |
| 0 to 0.050 |
| Manganese (Mn), % | 0 | |
| 0 to 0.1 |
| Nickel (Ni), % | 0 | |
| 0 to 0.25 |
| Silicon (Si), % | 0 | |
| 1.5 to 2.2 |
| Tin (Sn), % | 0.5 to 1.0 | |
| 0 to 0.2 |
| Zinc (Zn), % | 34.3 to 39.2 | |
| 0 to 0.5 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.5 |