AS41B Magnesium vs. C61900 Bronze
AS41B magnesium belongs to the magnesium alloys classification, while C61900 bronze belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (1, 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 AS41B magnesium and the bottom bar is C61900 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 45 | |
| 110 |
| Elongation at Break, % | 6.0 | |
| 21 to 32 |
| Poisson's Ratio | 0.29 | |
| 0.34 |
| Shear Modulus, GPa | 18 | |
| 43 |
| Shear Strength, MPa | 120 | |
| 370 to 410 |
| Tensile Strength: Ultimate (UTS), MPa | 210 | |
| 570 to 650 |
| Tensile Strength: Yield (Proof), MPa | 140 | |
| 230 to 310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 370 | |
| 230 |
| Maximum Temperature: Mechanical, °C | 110 | |
| 220 |
| Melting Completion (Liquidus), °C | 620 | |
| 1050 |
| Melting Onset (Solidus), °C | 570 | |
| 1040 |
| Specific Heat Capacity, J/kg-K | 1000 | |
| 440 |
| Thermal Conductivity, W/m-K | 68 | |
| 79 |
| Thermal Expansion, µm/m-K | 26 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 17 | |
| 11 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 92 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 12 | |
| 28 |
| Density, g/cm3 | 1.7 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 23 | |
| 3.1 |
| Embodied Energy, MJ/kg | 160 | |
| 51 |
| Embodied Water, L/kg | 980 | |
| 380 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 11 | |
| 110 to 150 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 220 | |
| 230 to 430 |
| Stiffness to Weight: Axial, points | 15 | |
| 7.6 |
| Stiffness to Weight: Bending, points | 72 | |
| 19 |
| Strength to Weight: Axial, points | 35 | |
| 19 to 22 |
| Strength to Weight: Bending, points | 47 | |
| 18 to 20 |
| Thermal Diffusivity, mm2/s | 41 | |
| 22 |
| Thermal Shock Resistance, points | 13 | |
| 20 to 23 |
Alloy Composition
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| Aluminum (Al), % | 3.5 to 5.0 | |
| 8.5 to 10 |
| Copper (Cu), % | 0 to 0.020 | |
| 83.6 to 88.5 |
| Iron (Fe), % | 0 to 0.0035 | |
| 3.0 to 4.5 |
| Lead (Pb), % | 0 | |
| 0 to 0.020 |
| Magnesium (Mg), % | 92.7 to 95.7 | |
| 0 |
| Manganese (Mn), % | 0.35 to 0.7 | |
| 0 |
| Nickel (Ni), % | 0 to 0.0020 | |
| 0 |
| Silicon (Si), % | 0.5 to 1.5 | |
| 0 |
| Tin (Sn), % | 0 | |
| 0 to 0.6 |
| Zinc (Zn), % | 0 to 0.12 | |
| 0 to 0.8 |
| Residuals, % | 0 | |
| 0 to 0.5 |