MakeItFrom.com
Menu (ESC)

ZK51A Magnesium vs. 4045 Aluminum

ZK51A magnesium belongs to the magnesium alloys classification, while 4045 aluminum belongs to the aluminum 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 ZK51A magnesium and the bottom bar is 4045 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
71
Elongation at Break, % 4.7
2.3
Fatigue Strength, MPa 62
45
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
27
Shear Strength, MPa 160
69
Tensile Strength: Ultimate (UTS), MPa 240
120
Tensile Strength: Yield (Proof), MPa 150
64

Thermal Properties

Latent Heat of Fusion, J/g 340
540
Maximum Temperature: Mechanical, °C 120
160
Melting Completion (Liquidus), °C 640
600
Melting Onset (Solidus), °C 550
580
Specific Heat Capacity, J/kg-K 970
900
Thermal Conductivity, W/m-K 110
170
Thermal Expansion, µm/m-K 26
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
45
Electrical Conductivity: Equal Weight (Specific), % IACS 140
160

Otherwise Unclassified Properties

Base Metal Price, % relative 13
9.5
Density, g/cm3 1.8
2.6
Embodied Carbon, kg CO2/kg material 24
7.8
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 940
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10
2.4
Resilience: Unit (Modulus of Resilience), kJ/m3 260
29
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 64
54
Strength to Weight: Axial, points 36
13
Strength to Weight: Bending, points 47
21
Thermal Diffusivity, mm2/s 61
74
Thermal Shock Resistance, points 15
5.7

Alloy Composition

Aluminum (Al), % 0
87.4 to 91
Copper (Cu), % 0 to 0.1
0 to 0.3
Iron (Fe), % 0
0 to 0.8
Magnesium (Mg), % 93.1 to 95.9
0 to 0.050
Manganese (Mn), % 0
0 to 0.050
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0
9.0 to 11
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 3.6 to 5.5
0 to 0.1
Zirconium (Zr), % 0.5 to 1.0
0
Residuals, % 0
0 to 0.15