MakeItFrom.com
Menu (ESC)

AZ91A Magnesium vs. EN AC-51100 Aluminum

AZ91A magnesium belongs to the magnesium alloys classification, while EN AC-51100 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AZ91A magnesium and the bottom bar is EN AC-51100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 63
57
Elastic (Young's, Tensile) Modulus, GPa 46
68
Elongation at Break, % 5.0
4.5
Fatigue Strength, MPa 99
58
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
26
Tensile Strength: Ultimate (UTS), MPa 240
160
Tensile Strength: Yield (Proof), MPa 160
80

Thermal Properties

Latent Heat of Fusion, J/g 360
400
Maximum Temperature: Mechanical, °C 130
170
Melting Completion (Liquidus), °C 600
640
Melting Onset (Solidus), °C 470
620
Specific Heat Capacity, J/kg-K 990
900
Thermal Conductivity, W/m-K 73
130
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
34
Electrical Conductivity: Equal Weight (Specific), % IACS 52
110

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 1.7
2.7
Embodied Carbon, kg CO2/kg material 22
8.7
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 990
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
6.0
Resilience: Unit (Modulus of Resilience), kJ/m3 280
47
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 69
51
Strength to Weight: Axial, points 38
17
Strength to Weight: Bending, points 49
25
Thermal Diffusivity, mm2/s 42
53
Thermal Shock Resistance, points 14
7.3

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
94.5 to 97.5
Copper (Cu), % 0 to 0.1
0 to 0.050
Iron (Fe), % 0
0 to 0.55
Magnesium (Mg), % 88.2 to 91.2
2.5 to 3.5
Manganese (Mn), % 0.13 to 0.5
0 to 0.45
Nickel (Ni), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0 to 0.55
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0.35 to 1.0
0 to 0.1
Residuals, % 0
0 to 0.15