7175 Aluminum vs. ISO-WD32350 Magnesium
7175 aluminum belongs to the aluminum alloys classification, while ISO-WD32350 magnesium belongs to the magnesium alloys.
For each property being compared, the top bar is 7175 aluminum and the bottom bar is ISO-WD32350 magnesium.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 70 | |
45 |
Elongation at Break, % | 3.8 to 5.9 | |
5.7 to 10 |
Fatigue Strength, MPa | 150 to 180 | |
120 to 130 |
Poisson's Ratio | 0.32 | |
0.29 |
Shear Modulus, GPa | 26 | |
18 |
Shear Strength, MPa | 290 to 330 | |
150 to 170 |
Tensile Strength: Ultimate (UTS), MPa | 520 to 570 | |
250 to 290 |
Tensile Strength: Yield (Proof), MPa | 430 to 490 | |
140 to 180 |
Thermal Properties
Latent Heat of Fusion, J/g | 380 | |
340 |
Maximum Temperature: Mechanical, °C | 180 | |
95 |
Melting Completion (Liquidus), °C | 640 | |
600 |
Melting Onset (Solidus), °C | 480 | |
560 |
Specific Heat Capacity, J/kg-K | 870 | |
990 |
Thermal Conductivity, W/m-K | 140 | |
130 |
Thermal Expansion, µm/m-K | 23 | |
25 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 33 | |
25 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 99 | |
130 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 10 | |
12 |
Density, g/cm3 | 3.0 | |
1.7 |
Embodied Carbon, kg CO2/kg material | 8.2 | |
23 |
Embodied Energy, MJ/kg | 150 | |
160 |
Embodied Water, L/kg | 1130 | |
960 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 18 to 29 | |
14 to 23 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 1310 to 1730 | |
210 to 380 |
Stiffness to Weight: Axial, points | 13 | |
15 |
Stiffness to Weight: Bending, points | 46 | |
68 |
Strength to Weight: Axial, points | 48 to 52 | |
39 to 46 |
Strength to Weight: Bending, points | 48 to 51 | |
50 to 55 |
Thermal Diffusivity, mm2/s | 53 | |
73 |
Thermal Shock Resistance, points | 23 to 25 | |
16 to 18 |
Alloy Composition
Aluminum (Al), % | 88 to 91.4 | |
0 to 0.1 |
Chromium (Cr), % | 0.18 to 0.28 | |
0 |
Copper (Cu), % | 1.2 to 2.0 | |
0 to 0.1 |
Iron (Fe), % | 0 to 0.2 | |
0 to 0.060 |
Magnesium (Mg), % | 2.1 to 2.9 | |
95.7 to 97.7 |
Manganese (Mn), % | 0 to 0.1 | |
0.6 to 1.3 |
Nickel (Ni), % | 0 | |
0 to 0.0050 |
Silicon (Si), % | 0 to 0.15 | |
0 to 0.1 |
Titanium (Ti), % | 0 to 0.1 | |
0 |
Zinc (Zn), % | 5.1 to 6.1 | |
1.8 to 2.3 |
Residuals, % | 0 | |
0 to 0.3 |