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EV31A Magnesium vs. Titanium 15-3-3-3

EV31A magnesium belongs to the magnesium alloys classification, while titanium 15-3-3-3 belongs to the titanium alloys. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is EV31A magnesium and the bottom bar is titanium 15-3-3-3.

EV31A (EV31A-T6, M12310) MagnesiumTitanium 15-3-3-3 (Ti-15V, R58153)
Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
100
Elongation at Break, % 3.5
5.7 to 8.0
Fatigue Strength, MPa 120
610 to 710
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 17
39
Shear Strength, MPa 170
660 to 810
Tensile Strength: Ultimate (UTS), MPa 260
1120 to 1390
Tensile Strength: Yield (Proof), MPa 170
1100 to 1340

Thermal Properties

Maximum Temperature: Mechanical, °C 200
430
Melting Onset (Solidus), °C 590
1560
Specific Heat Capacity, J/kg-K 1000
520
Thermal Conductivity, W/m-K 86
8.1
Thermal Expansion, µm/m-K 27
9.8

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
1.2
Electrical Conductivity: Equal Weight (Specific), % IACS 90
2.3

Otherwise Unclassified Properties

Density, g/cm3 1.8
4.8

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.1
78 to 89
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 65
32
Strength to Weight: Axial, points 40
64 to 80
Strength to Weight: Bending, points 50
50 to 57
Thermal Diffusivity, mm2/s 47
3.2
Thermal Shock Resistance, points 16
79 to 98