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7076 Aluminum vs. ISO-WD32350 Magnesium

7076 aluminum belongs to the aluminum alloys classification, while ISO-WD32350 magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 7076 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, % 6.2
5.7 to 10
Fatigue Strength, MPa 170
120 to 130
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
18
Shear Strength, MPa 310
150 to 170
Tensile Strength: Ultimate (UTS), MPa 530
250 to 290
Tensile Strength: Yield (Proof), MPa 460
140 to 180

Thermal Properties

Latent Heat of Fusion, J/g 380
340
Maximum Temperature: Mechanical, °C 170
95
Melting Completion (Liquidus), °C 630
600
Melting Onset (Solidus), °C 460
560
Specific Heat Capacity, J/kg-K 860
990
Thermal Conductivity, W/m-K 140
130
Thermal Expansion, µm/m-K 24
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
25
Electrical Conductivity: Equal Weight (Specific), % IACS 100
130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 3.0
1.7
Embodied Carbon, kg CO2/kg material 8.0
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1110
960

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
14 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 1510
210 to 380
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 45
68
Strength to Weight: Axial, points 49
39 to 46
Strength to Weight: Bending, points 48
50 to 55
Thermal Diffusivity, mm2/s 54
73
Thermal Shock Resistance, points 23
16 to 18

Alloy Composition

Aluminum (Al), % 86.9 to 91.2
0 to 0.1
Copper (Cu), % 0.3 to 1.0
0 to 0.1
Iron (Fe), % 0 to 0.6
0 to 0.060
Magnesium (Mg), % 1.2 to 2.0
95.7 to 97.7
Manganese (Mn), % 0.3 to 0.8
0.6 to 1.3
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.4
0 to 0.1
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 7.0 to 8.0
1.8 to 2.3
Residuals, % 0
0 to 0.3