C27400 Brass vs. C66700 Brass
Both C27400 brass and C66700 brass are copper alloys. They have a moderately high 91% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is C27400 brass and the bottom bar is C66700 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Poisson's Ratio | 0.31 | |
| 0.31 |
| Rockwell B Hardness | 53 to 91 | |
| 57 to 93 |
| Rockwell Superficial 30T Hardness | 52 to 78 | |
| 30 to 90 |
| Shear Modulus, GPa | 40 | |
| 41 |
| Tensile Strength: Ultimate (UTS), MPa | 370 to 650 | |
| 340 to 690 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 180 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 140 |
| Melting Completion (Liquidus), °C | 920 | |
| 1090 |
| Melting Onset (Solidus), °C | 870 | |
| 1050 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 390 |
| Thermal Conductivity, W/m-K | 120 | |
| 97 |
| Thermal Expansion, µm/m-K | 21 | |
| 20 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 28 | |
| 17 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 31 | |
| 19 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 25 |
| Density, g/cm3 | 8.0 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 2.7 |
| Embodied Energy, MJ/kg | 45 | |
| 45 |
| Embodied Water, L/kg | 320 | |
| 320 |
Common Calculations
| Stiffness to Weight: Axial, points | 7.2 | |
| 7.3 |
| Stiffness to Weight: Bending, points | 20 | |
| 19 |
| Strength to Weight: Axial, points | 13 to 23 | |
| 11 to 23 |
| Strength to Weight: Bending, points | 14 to 21 | |
| 13 to 21 |
| Thermal Diffusivity, mm2/s | 37 | |
| 30 |
| Thermal Shock Resistance, points | 12 to 22 | |
| 11 to 23 |
Alloy Composition
| Copper (Cu), % | 61 to 64 | |
| 68.5 to 71.5 |
| Iron (Fe), % | 0 to 0.1 | |
| 0 to 0.1 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 to 0.070 |
| Manganese (Mn), % | 0 | |
| 0.8 to 1.5 |
| Zinc (Zn), % | 35.6 to 39 | |
| 26.3 to 30.7 |
| Residuals, % | 0 | |
| 0 to 0.5 |