C18400 Copper vs. C66900 Brass
Both C18400 copper and C66900 brass are copper alloys. They have 64% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is C18400 copper and the bottom bar is C66900 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 120 |
| Elongation at Break, % | 13 to 50 | |
| 1.1 to 26 |
| Poisson's Ratio | 0.34 | |
| 0.32 |
| Rockwell B Hardness | 16 to 84 | |
| 65 to 100 |
| Shear Modulus, GPa | 44 | |
| 45 |
| Shear Strength, MPa | 190 to 310 | |
| 290 to 440 |
| Tensile Strength: Ultimate (UTS), MPa | 270 to 490 | |
| 460 to 770 |
| Tensile Strength: Yield (Proof), MPa | 110 to 480 | |
| 330 to 760 |
Thermal Properties
| Latent Heat of Fusion, J/g | 210 | |
| 190 |
| Maximum Temperature: Mechanical, °C | 200 | |
| 150 |
| Melting Completion (Liquidus), °C | 1080 | |
| 860 |
| Melting Onset (Solidus), °C | 1070 | |
| 850 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 400 |
| Thermal Expansion, µm/m-K | 17 | |
| 20 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 80 | |
| 3.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 81 | |
| 3.8 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 31 | |
| 23 |
| Density, g/cm3 | 8.9 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 2.8 |
| Embodied Energy, MJ/kg | 41 | |
| 46 |
| Embodied Water, L/kg | 310 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 63 to 120 | |
| 4.6 to 200 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 54 to 980 | |
| 460 to 2450 |
| Stiffness to Weight: Axial, points | 7.3 | |
| 8.1 |
| Stiffness to Weight: Bending, points | 18 | |
| 20 |
| Strength to Weight: Axial, points | 8.5 to 15 | |
| 15 to 26 |
| Strength to Weight: Bending, points | 10 to 16 | |
| 16 to 23 |
| Thermal Shock Resistance, points | 9.6 to 17 | |
| 14 to 23 |
Alloy Composition
| Arsenic (As), % | 0 to 0.0050 | |
| 0 |
| Calcium (Ca), % | 0 to 0.0050 | |
| 0 |
| Chromium (Cr), % | 0.4 to 1.2 | |
| 0 |
| Copper (Cu), % | 97.2 to 99.6 | |
| 62.5 to 64.5 |
| Iron (Fe), % | 0 to 0.15 | |
| 0 to 0.25 |
| Lead (Pb), % | 0 | |
| 0 to 0.050 |
| Lithium (Li), % | 0 to 0.050 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 11.5 to 12.5 |
| Phosphorus (P), % | 0 to 0.050 | |
| 0 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 |
| Zinc (Zn), % | 0 to 0.7 | |
| 22.5 to 26 |
| Residuals, % | 0 | |
| 0 to 0.2 |