C61000 Bronze vs. C69300 Brass
Both C61000 bronze and C69300 brass are copper alloys. They have 75% of their average alloy composition in common.
For each property being compared, the top bar is C61000 bronze and the bottom bar is C69300 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Elongation at Break, % | 29 to 50 | |
| 8.5 to 15 |
| Poisson's Ratio | 0.34 | |
| 0.32 |
| Rockwell B Hardness | 60 to 85 | |
| 84 to 88 |
| Shear Modulus, GPa | 42 | |
| 41 |
| Shear Strength, MPa | 280 to 300 | |
| 330 to 370 |
| Tensile Strength: Ultimate (UTS), MPa | 390 to 460 | |
| 550 to 630 |
| Tensile Strength: Yield (Proof), MPa | 150 to 190 | |
| 300 to 390 |
Thermal Properties
| Latent Heat of Fusion, J/g | 220 | |
| 240 |
| Maximum Temperature: Mechanical, °C | 210 | |
| 160 |
| Melting Completion (Liquidus), °C | 1040 | |
| 880 |
| Melting Onset (Solidus), °C | 990 | |
| 860 |
| Specific Heat Capacity, J/kg-K | 420 | |
| 400 |
| Thermal Conductivity, W/m-K | 69 | |
| 38 |
| Thermal Expansion, µm/m-K | 18 | |
| 19 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 15 | |
| 8.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 16 | |
| 8.8 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 29 | |
| 26 |
| Density, g/cm3 | 8.5 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 3.0 | |
| 2.7 |
| Embodied Energy, MJ/kg | 49 | |
| 45 |
| Embodied Water, L/kg | 370 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 160 | |
| 47 to 70 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 100 to 160 | |
| 400 to 700 |
| Stiffness to Weight: Axial, points | 7.4 | |
| 7.4 |
| Stiffness to Weight: Bending, points | 19 | |
| 19 |
| Strength to Weight: Axial, points | 13 to 15 | |
| 19 to 21 |
| Strength to Weight: Bending, points | 14 to 16 | |
| 18 to 20 |
| Thermal Diffusivity, mm2/s | 19 | |
| 12 |
| Thermal Shock Resistance, points | 14 to 16 | |
| 19 to 22 |
Alloy Composition
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| Aluminum (Al), % | 6.0 to 8.5 | |
| 0 |
| Copper (Cu), % | 90.2 to 94 | |
| 73 to 77 |
| Iron (Fe), % | 0 to 0.5 | |
| 0 to 0.1 |
| Lead (Pb), % | 0 to 0.020 | |
| 0 to 0.090 |
| Manganese (Mn), % | 0 | |
| 0 to 0.1 |
| Nickel (Ni), % | 0 | |
| 0 to 0.1 |
| Phosphorus (P), % | 0 | |
| 0.040 to 0.15 |
| Silicon (Si), % | 0 to 0.1 | |
| 2.7 to 3.4 |
| Tin (Sn), % | 0 | |
| 0 to 0.2 |
| Zinc (Zn), % | 0 to 0.2 | |
| 18.4 to 24.3 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.5 |