C27200 Brass vs. C18200 Copper
Both C27200 brass and C18200 copper are copper alloys. They have 64% of their average alloy composition in common.
For each property being compared, the top bar is C27200 brass and the bottom bar is C18200 copper.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 120 |
| Elongation at Break, % | 10 to 50 | |
| 11 to 40 |
| Poisson's Ratio | 0.31 | |
| 0.34 |
| Rockwell B Hardness | 53 to 86 | |
| 65 to 82 |
| Shear Modulus, GPa | 40 | |
| 44 |
| Shear Strength, MPa | 230 to 320 | |
| 210 to 320 |
| Tensile Strength: Ultimate (UTS), MPa | 370 to 590 | |
| 310 to 530 |
| Tensile Strength: Yield (Proof), MPa | 150 to 410 | |
| 97 to 450 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 210 |
| Maximum Temperature: Mechanical, °C | 130 | |
| 200 |
| Melting Completion (Liquidus), °C | 920 | |
| 1080 |
| Melting Onset (Solidus), °C | 870 | |
| 1070 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 390 |
| Thermal Conductivity, W/m-K | 120 | |
| 320 |
| Thermal Expansion, µm/m-K | 20 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 28 | |
| 80 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 31 | |
| 81 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 24 | |
| 31 |
| Density, g/cm3 | 8.1 | |
| 8.9 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 2.6 |
| Embodied Energy, MJ/kg | 45 | |
| 41 |
| Embodied Water, L/kg | 320 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 30 to 270 | |
| 43 to 96 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 110 to 810 | |
| 40 to 860 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 7.3 |
| Stiffness to Weight: Bending, points | 19 | |
| 18 |
| Strength to Weight: Axial, points | 13 to 20 | |
| 9.6 to 16 |
| Strength to Weight: Bending, points | 14 to 19 | |
| 11 to 16 |
| Thermal Diffusivity, mm2/s | 37 | |
| 93 |
| Thermal Shock Resistance, points | 12 to 20 | |
| 11 to 18 |
Alloy Composition
| Chromium (Cr), % | 0 | |
| 0.6 to 1.2 |
| Copper (Cu), % | 62 to 65 | |
| 98.6 to 99.4 |
| Iron (Fe), % | 0 to 0.070 | |
| 0 to 0.1 |
| Lead (Pb), % | 0 to 0.070 | |
| 0 to 0.050 |
| Silicon (Si), % | 0 | |
| 0 to 0.1 |
| Zinc (Zn), % | 34.6 to 38 | |
| 0 |
| Residuals, % | 0 to 0.3 | |
| 0 |