AZ91A Magnesium vs. EV31A Magnesium
Both AZ91A magnesium and EV31A magnesium are magnesium alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is AZ91A magnesium and the bottom bar is EV31A magnesium.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 63 | |
| 70 |
| Compressive (Crushing) Strength, MPa | 160 | |
| 360 |
| Elastic (Young's, Tensile) Modulus, GPa | 46 | |
| 44 |
| Elongation at Break, % | 5.0 | |
| 3.5 |
| Fatigue Strength, MPa | 99 | |
| 120 |
| Poisson's Ratio | 0.29 | |
| 0.27 |
| Shear Modulus, GPa | 18 | |
| 17 |
| Shear Strength, MPa | 140 | |
| 170 |
| Tensile Strength: Ultimate (UTS), MPa | 240 | |
| 260 |
| Tensile Strength: Yield (Proof), MPa | 160 | |
| 170 |
Thermal Properties
| Maximum Temperature: Mechanical, °C | 130 | |
| 200 |
| Melting Onset (Solidus), °C | 470 | |
| 590 |
| Specific Heat Capacity, J/kg-K | 990 | |
| 1000 |
| Thermal Conductivity, W/m-K | 73 | |
| 86 |
| Thermal Expansion, µm/m-K | 26 | |
| 27 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 10 | |
| 18 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 52 | |
| 90 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.7 | |
| 1.8 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 11 | |
| 8.1 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 280 | |
| 330 |
| Stiffness to Weight: Axial, points | 15 | |
| 13 |
| Stiffness to Weight: Bending, points | 69 | |
| 65 |
| Strength to Weight: Axial, points | 38 | |
| 40 |
| Strength to Weight: Bending, points | 49 | |
| 50 |
| Thermal Diffusivity, mm2/s | 42 | |
| 47 |
| Thermal Shock Resistance, points | 14 | |
| 16 |