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A357.0 Aluminum vs. EV31A Magnesium

A357.0 aluminum belongs to the aluminum alloys classification, while EV31A magnesium belongs to the magnesium alloys. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is A357.0 aluminum and the bottom bar is EV31A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100
70
Elastic (Young's, Tensile) Modulus, GPa 70
44
Elongation at Break, % 3.7
3.5
Fatigue Strength, MPa 100
120
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
17
Shear Strength, MPa 240
170
Tensile Strength: Ultimate (UTS), MPa 350
260
Tensile Strength: Yield (Proof), MPa 270
170

Thermal Properties

Maximum Temperature: Mechanical, °C 170
200
Melting Onset (Solidus), °C 560
590
Specific Heat Capacity, J/kg-K 900
1000
Thermal Conductivity, W/m-K 160
86
Thermal Expansion, µm/m-K 21
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
18
Electrical Conductivity: Equal Weight (Specific), % IACS 140
90

Otherwise Unclassified Properties

Density, g/cm3 2.6
1.8

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
8.1
Resilience: Unit (Modulus of Resilience), kJ/m3 520
330
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 53
65
Strength to Weight: Axial, points 38
40
Strength to Weight: Bending, points 43
50
Thermal Diffusivity, mm2/s 68
47
Thermal Shock Resistance, points 17
16