ASTM B817 Type II vs. EN-MC65220 Magnesium
ASTM B817 type II belongs to the titanium alloys classification, while EN-MC65220 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 ASTM B817 type II and the bottom bar is EN-MC65220 magnesium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 44 |
| Elongation at Break, % | 3.0 to 13 | |
| 2.2 |
| Fatigue Strength, MPa | 390 to 530 | |
| 110 |
| Poisson's Ratio | 0.32 | |
| 0.29 |
| Shear Modulus, GPa | 40 | |
| 17 |
| Tensile Strength: Ultimate (UTS), MPa | 900 to 960 | |
| 270 |
| Tensile Strength: Yield (Proof), MPa | 780 to 900 | |
| 200 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 340 |
| Maximum Temperature: Mechanical, °C | 350 | |
| 160 |
| Melting Completion (Liquidus), °C | 1580 | |
| 610 |
| Melting Onset (Solidus), °C | 1530 | |
| 550 |
| Specific Heat Capacity, J/kg-K | 550 | |
| 980 |
| Thermal Expansion, µm/m-K | 9.9 | |
| 26 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 37 | |
| 80 |
| Density, g/cm3 | 4.6 | |
| 1.9 |
| Embodied Carbon, kg CO2/kg material | 40 | |
| 27 |
| Embodied Energy, MJ/kg | 650 | |
| 210 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 26 to 120 | |
| 5.5 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 2890 to 3890 | |
| 450 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 34 | |
| 62 |
| Strength to Weight: Axial, points | 55 to 58 | |
| 40 |
| Strength to Weight: Bending, points | 45 to 47 | |
| 49 |
| Thermal Shock Resistance, points | 62 to 66 | |
| 17 |
Alloy Composition
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| Aluminum (Al), % | 5.0 to 6.0 | |
| 0 |
| Carbon (C), % | 0 to 0.1 | |
| 0 |
| Chlorine (Cl), % | 0 to 0.2 | |
| 0 |
| Copper (Cu), % | 0.35 to 1.0 | |
| 0.050 to 0.1 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0.35 to 1.0 | |
| 0 to 0.010 |
| Magnesium (Mg), % | 0 | |
| 93.8 to 96.8 |
| Manganese (Mn), % | 0 | |
| 0 to 0.15 |
| Nickel (Ni), % | 0 | |
| 0 to 0.0050 |
| Nitrogen (N), % | 0 to 0.040 | |
| 0 |
| Oxygen (O), % | 0 to 0.3 | |
| 0 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 0.010 |
| Silver (Ag), % | 0 | |
| 1.3 to 1.7 |
| Sodium (Na), % | 0 to 0.2 | |
| 0 |
| Tin (Sn), % | 1.5 to 2.5 | |
| 0 |
| Titanium (Ti), % | 82.1 to 87.8 | |
| 0 |
| Unspecified Rare Earths, % | 0 | |
| 1.5 to 3.0 |
| Vanadium (V), % | 5.0 to 6.0 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0 to 0.2 |
| Zirconium (Zr), % | 0 | |
| 0.4 to 1.0 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.010 |