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2095 Aluminum vs. ZK61A Magnesium

2095 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 2095 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, % 8.5
5.8 to 7.1
Fatigue Strength, MPa 200
120 to 140
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 410
170 to 180
Tensile Strength: Ultimate (UTS), MPa 700
290 to 310
Tensile Strength: Yield (Proof), MPa 610
180 to 200

Thermal Properties

Latent Heat of Fusion, J/g 390
330
Maximum Temperature: Mechanical, °C 210
120
Melting Completion (Liquidus), °C 660
640
Melting Onset (Solidus), °C 540
530
Specific Heat Capacity, J/kg-K 910
960
Thermal Conductivity, W/m-K 130
120
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
29
Electrical Conductivity: Equal Weight (Specific), % IACS 110
130

Otherwise Unclassified Properties

Base Metal Price, % relative 31
13
Density, g/cm3 3.0
1.9
Embodied Carbon, kg CO2/kg material 8.6
23
Embodied Energy, MJ/kg 160
160
Embodied Water, L/kg 1470
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 57
15 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 2640
370 to 420
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
62
Strength to Weight: Axial, points 65
42 to 45
Strength to Weight: Bending, points 59
50 to 53
Thermal Diffusivity, mm2/s 49
65
Thermal Shock Resistance, points 31
17 to 18

Alloy Composition

Aluminum (Al), % 91.3 to 94.9
0
Copper (Cu), % 3.9 to 4.6
0 to 0.1
Iron (Fe), % 0 to 0.15
0
Lithium (Li), % 0.7 to 1.5
0
Magnesium (Mg), % 0.25 to 0.8
92.1 to 93.9
Manganese (Mn), % 0 to 0.25
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.12
0
Silver (Ag), % 0.25 to 0.6
0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
5.5 to 6.5
Zirconium (Zr), % 0.040 to 0.18
0.6 to 1.0
Residuals, % 0
0 to 0.3