C38500 Bronze vs. ZK61A Magnesium
C38500 bronze belongs to the copper alloys classification, while ZK61A magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, 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 C38500 bronze and the bottom bar is ZK61A magnesium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 46 |
| Elongation at Break, % | 17 | |
| 5.8 to 7.1 |
| Poisson's Ratio | 0.31 | |
| 0.29 |
| Shear Modulus, GPa | 37 | |
| 18 |
| Shear Strength, MPa | 230 | |
| 170 to 180 |
| Tensile Strength: Ultimate (UTS), MPa | 370 | |
| 290 to 310 |
| Tensile Strength: Yield (Proof), MPa | 130 | |
| 180 to 200 |
Thermal Properties
| Latent Heat of Fusion, J/g | 160 | |
| 330 |
| Maximum Temperature: Mechanical, °C | 110 | |
| 120 |
| Melting Completion (Liquidus), °C | 890 | |
| 640 |
| Melting Onset (Solidus), °C | 880 | |
| 530 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 960 |
| Thermal Conductivity, W/m-K | 120 | |
| 120 |
| Thermal Expansion, µm/m-K | 21 | |
| 27 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 28 | |
| 29 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 31 | |
| 130 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 22 | |
| 13 |
| Density, g/cm3 | 8.1 | |
| 1.9 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 23 |
| Embodied Energy, MJ/kg | 45 | |
| 160 |
| Embodied Water, L/kg | 320 | |
| 940 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 48 | |
| 15 to 19 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 78 | |
| 370 to 420 |
| Stiffness to Weight: Axial, points | 7.0 | |
| 13 |
| Stiffness to Weight: Bending, points | 19 | |
| 62 |
| Strength to Weight: Axial, points | 13 | |
| 42 to 45 |
| Strength to Weight: Bending, points | 14 | |
| 50 to 53 |
| Thermal Diffusivity, mm2/s | 40 | |
| 65 |
| Thermal Shock Resistance, points | 12 | |
| 17 to 18 |
Alloy Composition
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| Copper (Cu), % | 55 to 59 | |
| 0 to 0.1 |
| Iron (Fe), % | 0 to 0.35 | |
| 0 |
| Lead (Pb), % | 2.5 to 3.5 | |
| 0 |
| Magnesium (Mg), % | 0 | |
| 92.1 to 93.9 |
| Nickel (Ni), % | 0 | |
| 0 to 0.010 |
| Zinc (Zn), % | 36.7 to 42.5 | |
| 5.5 to 6.5 |
| Zirconium (Zr), % | 0 | |
| 0.6 to 1.0 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.3 |