7005 Aluminum vs. EV31A Magnesium
7005 aluminum belongs to the aluminum alloys classification, while EV31A magnesium belongs to the magnesium alloys. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.
For each property being compared, the top bar is 7005 aluminum and the bottom bar is EV31A magnesium.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 70 | |
44 |
Elongation at Break, % | 10 to 20 | |
3.5 |
Fatigue Strength, MPa | 100 to 190 | |
120 |
Poisson's Ratio | 0.33 | |
0.27 |
Shear Modulus, GPa | 26 | |
17 |
Shear Strength, MPa | 120 to 230 | |
170 |
Tensile Strength: Ultimate (UTS), MPa | 200 to 400 | |
260 |
Tensile Strength: Yield (Proof), MPa | 95 to 350 | |
170 |
Thermal Properties
Maximum Temperature: Mechanical, °C | 200 | |
200 |
Melting Onset (Solidus), °C | 610 | |
590 |
Specific Heat Capacity, J/kg-K | 880 | |
1000 |
Thermal Conductivity, W/m-K | 140 to 170 | |
86 |
Thermal Expansion, µm/m-K | 23 | |
27 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 35 to 43 | |
18 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 110 to 130 | |
90 |
Otherwise Unclassified Properties
Density, g/cm3 | 2.9 | |
1.8 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 32 to 57 | |
8.1 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 65 to 850 | |
330 |
Stiffness to Weight: Axial, points | 13 | |
13 |
Stiffness to Weight: Bending, points | 47 | |
65 |
Strength to Weight: Axial, points | 19 to 38 | |
40 |
Strength to Weight: Bending, points | 26 to 41 | |
50 |
Thermal Diffusivity, mm2/s | 54 to 65 | |
47 |
Thermal Shock Resistance, points | 8.7 to 18 | |
16 |