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5019 Aluminum vs. EV31A Magnesium

5019 aluminum belongs to the aluminum alloys classification, while EV31A magnesium belongs to the magnesium alloys. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is 5019 aluminum and the bottom bar is EV31A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
44
Elongation at Break, % 2.2 to 18
3.5
Fatigue Strength, MPa 100 to 160
120
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
17
Shear Strength, MPa 170 to 210
170
Tensile Strength: Ultimate (UTS), MPa 280 to 360
260
Tensile Strength: Yield (Proof), MPa 120 to 300
170

Thermal Properties

Maximum Temperature: Mechanical, °C 180
200
Melting Onset (Solidus), °C 540
590
Specific Heat Capacity, J/kg-K 900
1000
Thermal Conductivity, W/m-K 130
86
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
18
Electrical Conductivity: Equal Weight (Specific), % IACS 98
90

Otherwise Unclassified Properties

Density, g/cm3 2.7
1.8

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.6 to 40
8.1
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 650
330
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
65
Strength to Weight: Axial, points 29 to 38
40
Strength to Weight: Bending, points 35 to 42
50
Thermal Diffusivity, mm2/s 52
47
Thermal Shock Resistance, points 13 to 16
16