MakeItFrom.com
Menu (ESC)

AZ91A Magnesium vs. 3103 Aluminum

AZ91A magnesium belongs to the magnesium alloys classification, while 3103 aluminum belongs to the aluminum alloys. There are 31 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 AZ91A magnesium and the bottom bar is 3103 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 63
27 to 62
Elastic (Young's, Tensile) Modulus, GPa 46
70
Elongation at Break, % 5.0
1.1 to 28
Fatigue Strength, MPa 99
38 to 83
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
26
Shear Strength, MPa 140
68 to 130
Tensile Strength: Ultimate (UTS), MPa 240
100 to 220
Tensile Strength: Yield (Proof), MPa 160
39 to 200

Thermal Properties

Latent Heat of Fusion, J/g 360
400
Maximum Temperature: Mechanical, °C 130
190
Melting Completion (Liquidus), °C 600
660
Melting Onset (Solidus), °C 470
640
Specific Heat Capacity, J/kg-K 990
900
Thermal Conductivity, W/m-K 73
160
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
42
Electrical Conductivity: Equal Weight (Specific), % IACS 52
140

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 1.7
2.8
Embodied Carbon, kg CO2/kg material 22
8.2
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 990
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
2.4 to 24
Resilience: Unit (Modulus of Resilience), kJ/m3 280
11 to 280
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 69
50
Strength to Weight: Axial, points 38
10 to 22
Strength to Weight: Bending, points 49
18 to 30
Thermal Diffusivity, mm2/s 42
64
Thermal Shock Resistance, points 14
4.6 to 9.9

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
96.3 to 99.1
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0 to 0.1
0 to 0.1
Iron (Fe), % 0
0 to 0.7
Magnesium (Mg), % 88.2 to 91.2
0 to 0.3
Manganese (Mn), % 0.13 to 0.5
0.9 to 1.5
Nickel (Ni), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0 to 0.5
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0.35 to 1.0
0 to 0.2
Zirconium (Zr), % 0
0 to 0.1
Residuals, % 0
0 to 0.15