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771.0 Aluminum vs. ZK61A Magnesium

771.0 aluminum belongs to the aluminum alloys classification, while ZK61A magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is 771.0 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, % 1.7 to 6.5
5.8 to 7.1
Fatigue Strength, MPa 92 to 180
120 to 140
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 26
18
Tensile Strength: Ultimate (UTS), MPa 250 to 370
290 to 310
Tensile Strength: Yield (Proof), MPa 210 to 350
180 to 200

Thermal Properties

Latent Heat of Fusion, J/g 380
330
Maximum Temperature: Mechanical, °C 180
120
Melting Completion (Liquidus), °C 630
640
Melting Onset (Solidus), °C 620
530
Solidification (Pattern Maker's) Shrinkage, % 1.6
1.3
Specific Heat Capacity, J/kg-K 870
960
Thermal Conductivity, W/m-K 140 to 150
120
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
29
Electrical Conductivity: Equal Weight (Specific), % IACS 82
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 1130
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4 to 20
15 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 900
370 to 420
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
62
Strength to Weight: Axial, points 23 to 35
42 to 45
Strength to Weight: Bending, points 29 to 39
50 to 53
Thermal Diffusivity, mm2/s 54 to 58
65
Thermal Shock Resistance, points 11 to 16
17 to 18

Alloy Composition

Aluminum (Al), % 90.5 to 92.5
0
Chromium (Cr), % 0.060 to 0.2
0
Copper (Cu), % 0 to 0.1
0 to 0.1
Iron (Fe), % 0 to 0.15
0
Magnesium (Mg), % 0.8 to 1.0
92.1 to 93.9
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.15
0
Titanium (Ti), % 0.1 to 0.2
0
Zinc (Zn), % 6.5 to 7.5
5.5 to 6.5
Zirconium (Zr), % 0
0.6 to 1.0
Residuals, % 0
0 to 0.3

Comparable Variants