ASTM B628 Ag-Cu vs. EN-MC65220 Magnesium
ASTM B628 Ag-Cu belongs to the otherwise unclassified metals classification, while EN-MC65220 magnesium belongs to the magnesium alloys. There are 19 material properties with values for both materials. Properties with values for just one material (11, 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 ASTM B628 Ag-Cu and the bottom bar is EN-MC65220 magnesium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 83 | |
| 44 |
| Elongation at Break, % | 1.1 to 17 | |
| 2.2 |
| Poisson's Ratio | 0.36 | |
| 0.29 |
| Shear Modulus, GPa | 31 | |
| 17 |
| Shear Strength, MPa | 210 to 430 | |
| 150 |
| Tensile Strength: Ultimate (UTS), MPa | 350 to 760 | |
| 270 |
Thermal Properties
| Latent Heat of Fusion, J/g | 140 | |
| 340 |
| Melting Completion (Liquidus), °C | 780 | |
| 610 |
| Melting Onset (Solidus), °C | 780 | |
| 550 |
| Specific Heat Capacity, J/kg-K | 280 | |
| 980 |
| Thermal Expansion, µm/m-K | 19 | |
| 26 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 84 | |
| 25 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 75 | |
| 120 |
Otherwise Unclassified Properties
| Density, g/cm3 | 10 | |
| 1.9 |
Common Calculations
| Stiffness to Weight: Axial, points | 4.6 | |
| 13 |
| Stiffness to Weight: Bending, points | 14 | |
| 62 |
| Strength to Weight: Axial, points | 9.5 to 21 | |
| 40 |
| Strength to Weight: Bending, points | 11 to 18 | |
| 49 |
| Thermal Shock Resistance, points | 16 to 34 | |
| 17 |
Alloy Composition
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| Aluminum (Al), % | 0 to 0.0050 | |
| 0 |
| Cadmium (Cd), % | 0 to 0.050 | |
| 0 |
| Copper (Cu), % | 26.6 to 29 | |
| 0.050 to 0.1 |
| Iron (Fe), % | 0 to 0.050 | |
| 0 to 0.010 |
| Lead (Pb), % | 0 to 0.030 | |
| 0 |
| Magnesium (Mg), % | 0 | |
| 93.8 to 96.8 |
| Manganese (Mn), % | 0 | |
| 0 to 0.15 |
| Nickel (Ni), % | 0 to 0.010 | |
| 0 to 0.0050 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 |
| Silicon (Si), % | 0 | |
| 0 to 0.010 |
| Silver (Ag), % | 71 to 73 | |
| 1.3 to 1.7 |
| Unspecified Rare Earths, % | 0 | |
| 1.5 to 3.0 |
| Zinc (Zn), % | 0 to 0.060 | |
| 0 to 0.2 |
| Zirconium (Zr), % | 0 | |
| 0.4 to 1.0 |
| Residuals, % | 0 to 0.21 | |
| 0 to 0.010 |