C35300 Brass vs. ZK40A Magnesium
C35300 brass belongs to the copper alloys classification, while ZK40A magnesium belongs to the magnesium alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.
For each property being compared, the top bar is C35300 brass and the bottom bar is ZK40A magnesium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 45 |
| Poisson's Ratio | 0.31 | |
| 0.29 |
| Shear Modulus, GPa | 39 | |
| 17 |
| Tensile Strength: Ultimate (UTS), MPa | 340 to 650 | |
| 280 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 340 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 120 |
| Melting Completion (Liquidus), °C | 910 | |
| 600 |
| Melting Onset (Solidus), °C | 890 | |
| 540 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 970 |
| Thermal Conductivity, W/m-K | 120 | |
| 110 |
| Thermal Expansion, µm/m-K | 21 | |
| 26 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 26 | |
| 27 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 29 | |
| 130 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 13 |
| Density, g/cm3 | 8.1 | |
| 1.8 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 24 |
| Embodied Energy, MJ/kg | 45 | |
| 160 |
| Embodied Water, L/kg | 320 | |
| 950 |
Common Calculations
| Stiffness to Weight: Axial, points | 7.1 | |
| 14 |
| Stiffness to Weight: Bending, points | 19 | |
| 65 |
| Strength to Weight: Axial, points | 12 to 22 | |
| 43 |
| Strength to Weight: Bending, points | 13 to 21 | |
| 53 |
| Thermal Diffusivity, mm2/s | 38 | |
| 62 |
| Thermal Shock Resistance, points | 11 to 22 | |
| 17 |
Alloy Composition
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| Copper (Cu), % | 60 to 63 | |
| 0 |
| Iron (Fe), % | 0 to 0.1 | |
| 0 |
| Lead (Pb), % | 1.5 to 2.5 | |
| 0 |
| Magnesium (Mg), % | 0 | |
| 94.2 to 96.1 |
| Zinc (Zn), % | 33.9 to 38.5 | |
| 3.5 to 4.5 |
| Zirconium (Zr), % | 0 | |
| 0.45 to 1.0 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.3 |