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AZ91E-T6 Magnesium vs. EN AC-42100-T6

AZ91E-T6 magnesium belongs to the magnesium alloys classification, while EN AC-42100-T6 belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AZ91E-T6 magnesium and the bottom bar is EN AC-42100-T6.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 75
91
Elastic (Young's, Tensile) Modulus, GPa 46
70
Elongation at Break, % 3.9
3.4
Fatigue Strength, MPa 84
76
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
26
Tensile Strength: Ultimate (UTS), MPa 260
290
Tensile Strength: Yield (Proof), MPa 130
230

Thermal Properties

Latent Heat of Fusion, J/g 350
500
Maximum Temperature: Mechanical, °C 130
170
Melting Completion (Liquidus), °C 600
610
Melting Onset (Solidus), °C 500
600
Specific Heat Capacity, J/kg-K 990
910
Thermal Conductivity, W/m-K 84
150
Thermal Expansion, µm/m-K 27
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
41
Electrical Conductivity: Equal Weight (Specific), % IACS 58
140

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 1.7
2.6
Embodied Carbon, kg CO2/kg material 22
8.0
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 990
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.6
9.1
Resilience: Unit (Modulus of Resilience), kJ/m3 190
370
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 69
53
Strength to Weight: Axial, points 42
31
Strength to Weight: Bending, points 53
38
Thermal Diffusivity, mm2/s 49
66
Thermal Shock Resistance, points 15
13

Alloy Composition

Aluminum (Al), % 8.1 to 9.3
91.3 to 93.3
Copper (Cu), % 0 to 0.015
0 to 0.050
Iron (Fe), % 0 to 0.0050
0 to 0.19
Magnesium (Mg), % 88.8 to 91.3
0.25 to 0.45
Manganese (Mn), % 0.17 to 0.35
0 to 0.1
Nickel (Ni), % 0 to 0.0010
0
Silicon (Si), % 0 to 0.2
6.5 to 7.5
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0.4 to 1.0
0 to 0.070
Residuals, % 0
0 to 0.1