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AZ91C Magnesium vs. 1050 Aluminum

AZ91C magnesium belongs to the magnesium alloys classification, while 1050 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 AZ91C magnesium and the bottom bar is 1050 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
68
Elongation at Break, % 2.3 to 7.9
4.6 to 37
Fatigue Strength, MPa 56 to 85
31 to 57
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
26
Shear Strength, MPa 96 to 160
52 to 81
Tensile Strength: Ultimate (UTS), MPa 170 to 270
76 to 140
Tensile Strength: Yield (Proof), MPa 83 to 130
25 to 120

Thermal Properties

Latent Heat of Fusion, J/g 350
400
Maximum Temperature: Mechanical, °C 130
170
Melting Completion (Liquidus), °C 600
640
Melting Onset (Solidus), °C 470
650
Specific Heat Capacity, J/kg-K 990
900
Thermal Conductivity, W/m-K 73
230
Thermal Expansion, µm/m-K 26
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.9 to 12
61
Electrical Conductivity: Equal Weight (Specific), % IACS 52 to 60
200

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 1.7
2.7
Embodied Carbon, kg CO2/kg material 22
8.3
Embodied Energy, MJ/kg 160
160
Embodied Water, L/kg 990
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.2 to 16
5.4 to 22
Resilience: Unit (Modulus of Resilience), kJ/m3 75 to 180
4.6 to 110
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 69
50
Strength to Weight: Axial, points 27 to 43
7.8 to 14
Strength to Weight: Bending, points 39 to 53
15 to 22
Thermal Diffusivity, mm2/s 43
94
Thermal Shock Resistance, points 9.9 to 16
3.4 to 6.2

Alloy Composition


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Aluminum (Al), % 8.1 to 9.3
99.5 to 100
Copper (Cu), % 0 to 0.1
0 to 0.050
Iron (Fe), % 0
0 to 0.4
Magnesium (Mg), % 88.6 to 91.4
0 to 0.050
Manganese (Mn), % 0.13 to 0.35
0 to 0.050
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0 to 0.3
0 to 0.25
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0.4 to 1.0
0 to 0.050
Residuals, % 0 to 0.3
0