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712.0 Aluminum vs. ZK61A Magnesium

712.0 aluminum belongs to the aluminum alloys classification, while ZK61A magnesium belongs to the magnesium alloys. There are 31 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 712.0 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, % 4.5 to 4.7
5.8 to 7.1
Fatigue Strength, MPa 140 to 180
120 to 140
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
18
Shear Strength, MPa 180
170 to 180
Tensile Strength: Ultimate (UTS), MPa 250 to 260
290 to 310
Tensile Strength: Yield (Proof), MPa 180 to 200
180 to 200

Thermal Properties

Latent Heat of Fusion, J/g 380
330
Maximum Temperature: Mechanical, °C 190
120
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 610
530
Solidification (Pattern Maker's) Shrinkage, % 1.6
1.3
Specific Heat Capacity, J/kg-K 870
960
Thermal Conductivity, W/m-K 160
120
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
29
Electrical Conductivity: Equal Weight (Specific), % IACS 120
130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 3.0
1.9
Embodied Carbon, kg CO2/kg material 8.0
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1140
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
15 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 270
370 to 420
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
62
Strength to Weight: Axial, points 24 to 25
42 to 45
Strength to Weight: Bending, points 30 to 31
50 to 53
Thermal Diffusivity, mm2/s 62
65
Thermal Shock Resistance, points 11
17 to 18

Alloy Composition

Aluminum (Al), % 90.7 to 94
0
Chromium (Cr), % 0.4 to 0.6
0
Copper (Cu), % 0 to 0.25
0 to 0.1
Iron (Fe), % 0 to 0.5
0
Magnesium (Mg), % 0.5 to 0.65
92.1 to 93.9
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.3
0
Titanium (Ti), % 0.15 to 0.25
0
Zinc (Zn), % 5.0 to 6.5
5.5 to 6.5
Zirconium (Zr), % 0
0.6 to 1.0
Residuals, % 0
0 to 0.3

Comparable Variants