C35000 Brass vs. C12000 Copper
Both C35000 brass and C12000 copper are copper alloys. They have 62% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is C35000 brass and the bottom bar is C12000 copper.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 120 |
| Poisson's Ratio | 0.31 | |
| 0.34 |
| Rockwell Superficial 30T Hardness | 52 to 78 | |
| 27 to 70 |
| Shear Modulus, GPa | 40 | |
| 43 |
| Tensile Strength: Ultimate (UTS), MPa | 340 to 650 | |
| 230 to 410 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 210 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 200 |
| Melting Completion (Liquidus), °C | 920 | |
| 1080 |
| Melting Onset (Solidus), °C | 890 | |
| 1080 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 390 |
| Thermal Conductivity, W/m-K | 120 | |
| 390 |
| Thermal Expansion, µm/m-K | 21 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 26 | |
| 98 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 29 | |
| 98 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 31 |
| Density, g/cm3 | 8.1 | |
| 9.0 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 2.6 |
| Embodied Energy, MJ/kg | 45 | |
| 41 |
| Embodied Water, L/kg | 320 | |
| 310 |
Common Calculations
| Stiffness to Weight: Axial, points | 7.1 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 19 | |
| 18 |
| Strength to Weight: Axial, points | 12 to 22 | |
| 7.2 to 13 |
| Strength to Weight: Bending, points | 13 to 21 | |
| 9.4 to 14 |
| Thermal Diffusivity, mm2/s | 37 | |
| 110 |
| Thermal Shock Resistance, points | 11 to 22 | |
| 8.2 to 15 |
Alloy Composition
| Copper (Cu), % | 60 to 63 | |
| 99.9 to 99.996 |
| Iron (Fe), % | 0 to 0.1 | |
| 0 |
| Lead (Pb), % | 0.8 to 2.0 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0.0040 to 0.012 |
| Zinc (Zn), % | 34.5 to 39.2 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |