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7003 Aluminum vs. AZ61A Magnesium

7003 aluminum belongs to the aluminum alloys classification, while AZ61A 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 7003 aluminum and the bottom bar is AZ61A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
45
Elongation at Break, % 11
11
Fatigue Strength, MPa 130 to 150
130
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 210 to 230
150
Tensile Strength: Ultimate (UTS), MPa 350 to 390
280
Tensile Strength: Yield (Proof), MPa 300 to 310
170

Thermal Properties

Latent Heat of Fusion, J/g 380
350
Maximum Temperature: Mechanical, °C 200
120
Melting Completion (Liquidus), °C 630
600
Melting Onset (Solidus), °C 510
530
Specific Heat Capacity, J/kg-K 870
990
Thermal Conductivity, W/m-K 150
79
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
12
Electrical Conductivity: Equal Weight (Specific), % IACS 110
62

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.9
1.7
Embodied Carbon, kg CO2/kg material 8.1
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1140
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 41
27
Resilience: Unit (Modulus of Resilience), kJ/m3 630 to 710
310
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 47
69
Strength to Weight: Axial, points 33 to 37
46
Strength to Weight: Bending, points 37 to 40
56
Thermal Diffusivity, mm2/s 59
47
Thermal Shock Resistance, points 15 to 17
17

Alloy Composition

Aluminum (Al), % 90.6 to 94.5
5.5 to 7.2
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0 to 0.2
0 to 0.050
Iron (Fe), % 0 to 0.35
0 to 0.0050
Magnesium (Mg), % 0.5 to 1.0
90.3 to 93.9
Manganese (Mn), % 0 to 0.3
0.15 to 0.5
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.3
0 to 0.1
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 5.0 to 6.5
0.4 to 1.5
Zirconium (Zr), % 0.050 to 0.25
0
Residuals, % 0
0 to 0.3