C34000 Brass vs. C27400 Brass
Both C34000 brass and C27400 brass are copper alloys. They have a very high 98% of their average alloy composition in common.
For each property being compared, the top bar is C34000 brass and the bottom bar is C27400 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 110 |
| Poisson's Ratio | 0.31 | |
| 0.31 |
| Rockwell B Hardness | 53 to 91 | |
| 53 to 91 |
| Rockwell Superficial 30T Hardness | 52 to 78 | |
| 52 to 78 |
| Shear Modulus, GPa | 40 | |
| 40 |
| Tensile Strength: Ultimate (UTS), MPa | 340 to 650 | |
| 370 to 650 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 170 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 120 |
| Melting Completion (Liquidus), °C | 930 | |
| 920 |
| Melting Onset (Solidus), °C | 890 | |
| 870 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 390 |
| Thermal Conductivity, W/m-K | 120 | |
| 120 |
| Thermal Expansion, µm/m-K | 21 | |
| 21 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 26 | |
| 28 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 29 | |
| 31 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 24 | |
| 23 |
| Density, g/cm3 | 8.1 | |
| 8.0 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 2.7 |
| Embodied Energy, MJ/kg | 45 | |
| 45 |
| Embodied Water, L/kg | 320 | |
| 320 |
Common Calculations
| Stiffness to Weight: Axial, points | 7.1 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 19 | |
| 20 |
| Strength to Weight: Axial, points | 11 to 22 | |
| 13 to 23 |
| Strength to Weight: Bending, points | 13 to 21 | |
| 14 to 21 |
| Thermal Diffusivity, mm2/s | 37 | |
| 37 |
| Thermal Shock Resistance, points | 11 to 22 | |
| 12 to 22 |
Alloy Composition
| Copper (Cu), % | 62 to 65 | |
| 61 to 64 |
| Iron (Fe), % | 0 to 0.1 | |
| 0 to 0.1 |
| Lead (Pb), % | 0.8 to 1.5 | |
| 0 to 0.050 |
| Zinc (Zn), % | 33 to 37.2 | |
| 35.6 to 39 |
| Residuals, % | 0 | |
| 0 to 0.3 |