C34000 Brass vs. C67400 Bronze
Both C34000 brass and C67400 bronze are copper alloys. They have a moderately high 94% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is C34000 brass and the bottom bar is C67400 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 110 |
| Poisson's Ratio | 0.31 | |
| 0.31 |
| Rockwell B Hardness | 53 to 91 | |
| 78 to 85 |
| Shear Modulus, GPa | 40 | |
| 41 |
| Tensile Strength: Ultimate (UTS), MPa | 340 to 650 | |
| 480 to 610 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 190 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 130 |
| Melting Completion (Liquidus), °C | 930 | |
| 890 |
| Melting Onset (Solidus), °C | 890 | |
| 870 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 400 |
| Thermal Conductivity, W/m-K | 120 | |
| 100 |
| Thermal Expansion, µm/m-K | 21 | |
| 21 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 26 | |
| 23 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 29 | |
| 26 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 24 | |
| 23 |
| Density, g/cm3 | 8.1 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 2.8 |
| Embodied Energy, MJ/kg | 45 | |
| 48 |
| Embodied Water, L/kg | 320 | |
| 330 |
Common Calculations
| Stiffness to Weight: Axial, points | 7.1 | |
| 7.5 |
| Stiffness to Weight: Bending, points | 19 | |
| 20 |
| Strength to Weight: Axial, points | 11 to 22 | |
| 17 to 22 |
| Strength to Weight: Bending, points | 13 to 21 | |
| 17 to 20 |
| Thermal Diffusivity, mm2/s | 37 | |
| 32 |
| Thermal Shock Resistance, points | 11 to 22 | |
| 16 to 20 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0.5 to 2.0 |
| Copper (Cu), % | 62 to 65 | |
| 57 to 60 |
| Iron (Fe), % | 0 to 0.1 | |
| 0 to 0.35 |
| Lead (Pb), % | 0.8 to 1.5 | |
| 0 to 0.5 |
| Manganese (Mn), % | 0 | |
| 2.0 to 3.5 |
| Nickel (Ni), % | 0 | |
| 0 to 0.25 |
| Silicon (Si), % | 0 | |
| 0.5 to 1.5 |
| Tin (Sn), % | 0 | |
| 0 to 0.3 |
| Zinc (Zn), % | 33 to 37.2 | |
| 31.1 to 40 |
| Residuals, % | 0 | |
| 0 to 0.5 |