C34500 Brass vs. C21000 Brass
Both C34500 brass and C21000 brass are copper alloys. They have 68% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is C34500 brass and the bottom bar is C21000 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 110 |
| Elongation at Break, % | 12 to 28 | |
| 2.9 to 50 |
| Poisson's Ratio | 0.31 | |
| 0.34 |
| Shear Modulus, GPa | 40 | |
| 43 |
| Shear Strength, MPa | 220 to 260 | |
| 180 to 280 |
| Tensile Strength: Ultimate (UTS), MPa | 340 to 430 | |
| 240 to 450 |
| Tensile Strength: Yield (Proof), MPa | 120 to 180 | |
| 69 to 440 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 200 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 190 |
| Melting Completion (Liquidus), °C | 910 | |
| 1070 |
| Melting Onset (Solidus), °C | 890 | |
| 1050 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 390 |
| Thermal Conductivity, W/m-K | 120 | |
| 230 |
| Thermal Expansion, µm/m-K | 21 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 26 | |
| 56 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 29 | |
| 57 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 24 | |
| 30 |
| Density, g/cm3 | 8.2 | |
| 8.8 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 2.6 |
| Embodied Energy, MJ/kg | 45 | |
| 42 |
| Embodied Water, L/kg | 320 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 42 to 75 | |
| 13 to 100 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 69 to 160 | |
| 21 to 830 |
| Stiffness to Weight: Axial, points | 7.1 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 19 | |
| 18 |
| Strength to Weight: Axial, points | 12 to 15 | |
| 7.4 to 14 |
| Strength to Weight: Bending, points | 13 to 16 | |
| 9.6 to 15 |
| Thermal Diffusivity, mm2/s | 37 | |
| 69 |
| Thermal Shock Resistance, points | 11 to 14 | |
| 8.1 to 15 |
Alloy Composition
| Copper (Cu), % | 62 to 65 | |
| 94 to 96 |
| Iron (Fe), % | 0 to 0.15 | |
| 0 to 0.050 |
| Lead (Pb), % | 1.5 to 2.5 | |
| 0 to 0.030 |
| Zinc (Zn), % | 32 to 36.5 | |
| 3.7 to 6.0 |
| Residuals, % | 0 | |
| 0 to 0.2 |