C31400 Bronze vs. C69700 Brass
Both C31400 bronze and C69700 brass are copper alloys. They have 87% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is C31400 bronze and the bottom bar is C69700 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Elongation at Break, % | 6.8 to 29 | |
| 25 |
| Poisson's Ratio | 0.33 | |
| 0.32 |
| Shear Modulus, GPa | 42 | |
| 41 |
| Shear Strength, MPa | 180 to 240 | |
| 300 |
| Tensile Strength: Ultimate (UTS), MPa | 270 to 420 | |
| 470 |
| Tensile Strength: Yield (Proof), MPa | 78 to 310 | |
| 230 |
Thermal Properties
| Latent Heat of Fusion, J/g | 200 | |
| 240 |
| Maximum Temperature: Mechanical, °C | 180 | |
| 160 |
| Melting Completion (Liquidus), °C | 1040 | |
| 930 |
| Melting Onset (Solidus), °C | 1010 | |
| 880 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 400 |
| Thermal Conductivity, W/m-K | 180 | |
| 43 |
| Thermal Expansion, µm/m-K | 18 | |
| 19 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 29 | |
| 26 |
| Density, g/cm3 | 8.8 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 2.7 |
| Embodied Energy, MJ/kg | 42 | |
| 44 |
| Embodied Water, L/kg | 310 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 26 to 59 | |
| 99 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 28 to 420 | |
| 250 |
| Stiffness to Weight: Axial, points | 7.1 | |
| 7.3 |
| Stiffness to Weight: Bending, points | 18 | |
| 19 |
| Strength to Weight: Axial, points | 8.7 to 13 | |
| 16 |
| Strength to Weight: Bending, points | 11 to 14 | |
| 16 |
| Thermal Diffusivity, mm2/s | 54 | |
| 13 |
| Thermal Shock Resistance, points | 9.6 to 15 | |
| 16 |
Alloy Composition
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| Copper (Cu), % | 87.5 to 90.5 | |
| 75 to 80 |
| Iron (Fe), % | 0 to 0.1 | |
| 0 to 0.2 |
| Lead (Pb), % | 1.3 to 2.5 | |
| 0.5 to 1.5 |
| Manganese (Mn), % | 0 | |
| 0 to 0.4 |
| Nickel (Ni), % | 0 to 0.7 | |
| 0 |
| Silicon (Si), % | 0 | |
| 2.5 to 3.5 |
| Zinc (Zn), % | 5.8 to 11.2 | |
| 13.9 to 22 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.5 |