C38000 Brass vs. C38500 Bronze
Both C38000 brass and C38500 bronze are copper alloys. Both are furnished in the M20 (as hot rolled) condition. Their average alloy composition is basically identical. 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 C38000 brass and the bottom bar is C38500 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 100 |
| Elongation at Break, % | 17 | |
| 17 |
| Poisson's Ratio | 0.31 | |
| 0.31 |
| Shear Modulus, GPa | 39 | |
| 37 |
| Shear Strength, MPa | 230 | |
| 230 |
| Tensile Strength: Ultimate (UTS), MPa | 380 | |
| 370 |
| Tensile Strength: Yield (Proof), MPa | 120 | |
| 130 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 160 |
| Maximum Temperature: Mechanical, °C | 110 | |
| 110 |
| Melting Completion (Liquidus), °C | 800 | |
| 890 |
| Melting Onset (Solidus), °C | 760 | |
| 880 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 380 |
| Thermal Conductivity, W/m-K | 110 | |
| 120 |
| Thermal Expansion, µm/m-K | 21 | |
| 21 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 22 | |
| 22 |
| Density, g/cm3 | 8.0 | |
| 8.1 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 2.6 |
| Embodied Energy, MJ/kg | 46 | |
| 45 |
| Embodied Water, L/kg | 330 | |
| 320 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 50 | |
| 48 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 74 | |
| 78 |
| Stiffness to Weight: Axial, points | 7.1 | |
| 7.0 |
| Stiffness to Weight: Bending, points | 19 | |
| 19 |
| Strength to Weight: Axial, points | 13 | |
| 13 |
| Strength to Weight: Bending, points | 14 | |
| 14 |
| Thermal Diffusivity, mm2/s | 37 | |
| 40 |
| Thermal Shock Resistance, points | 13 | |
| 12 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.5 | |
| 0 |
| Copper (Cu), % | 55 to 60 | |
| 55 to 59 |
| Iron (Fe), % | 0 to 0.35 | |
| 0 to 0.35 |
| Lead (Pb), % | 1.5 to 2.5 | |
| 2.5 to 3.5 |
| Tin (Sn), % | 0 to 0.3 | |
| 0 |
| Zinc (Zn), % | 35.9 to 43.5 | |
| 36.7 to 42.5 |
| Residuals, % | 0 | |
| 0 to 0.5 |