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515.0 Aluminum vs. ZK61A Magnesium

515.0 aluminum belongs to the aluminum alloys classification, while ZK61A magnesium belongs to the magnesium alloys. There are 23 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 515.0 aluminum and the bottom bar is ZK61A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
46
Elongation at Break, % 10
5.8 to 7.1
Fatigue Strength, MPa 130
120 to 140
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 190
170 to 180
Tensile Strength: Ultimate (UTS), MPa 280
290 to 310

Thermal Properties

Latent Heat of Fusion, J/g 470
330
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 620
640
Melting Onset (Solidus), °C 620
530
Specific Heat Capacity, J/kg-K 900
960
Thermal Expansion, µm/m-K 23
27

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.6
1.9
Embodied Carbon, kg CO2/kg material 8.4
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1120
940

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 52
62
Strength to Weight: Axial, points 30
42 to 45
Strength to Weight: Bending, points 36
50 to 53
Thermal Shock Resistance, points 13
17 to 18

Alloy Composition

Aluminum (Al), % 93.6 to 96.6
0
Copper (Cu), % 0 to 0.2
0 to 0.1
Iron (Fe), % 0 to 1.3
0
Magnesium (Mg), % 2.5 to 4.0
92.1 to 93.9
Manganese (Mn), % 0.4 to 0.6
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0.5 to 10
0
Zinc (Zn), % 0 to 0.1
5.5 to 6.5
Zirconium (Zr), % 0
0.6 to 1.0
Residuals, % 0
0 to 0.3