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ISO-WD32250 Magnesium vs. Grade C-5 Titanium

ISO-WD32250 magnesium belongs to the magnesium alloys classification, while grade C-5 titanium belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 ISO-WD32250 magnesium and the bottom bar is grade C-5 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 4.5 to 8.6
6.7
Fatigue Strength, MPa 170 to 210
510
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 17
40
Tensile Strength: Ultimate (UTS), MPa 310 to 330
1000
Tensile Strength: Yield (Proof), MPa 240 to 290
940

Thermal Properties

Latent Heat of Fusion, J/g 340
410
Maximum Temperature: Mechanical, °C 120
340
Melting Completion (Liquidus), °C 600
1610
Melting Onset (Solidus), °C 550
1560
Specific Heat Capacity, J/kg-K 980
560
Thermal Conductivity, W/m-K 130
7.1
Thermal Expansion, µm/m-K 26
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 130
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 13
36
Density, g/cm3 1.8
4.4
Embodied Carbon, kg CO2/kg material 24
38
Embodied Energy, MJ/kg 160
610
Embodied Water, L/kg 950
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14 to 26
66
Resilience: Unit (Modulus of Resilience), kJ/m3 630 to 930
4200
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 67
35
Strength to Weight: Axial, points 49 to 51
63
Strength to Weight: Bending, points 58 to 60
50
Thermal Diffusivity, mm2/s 72
2.9
Thermal Shock Resistance, points 19 to 20
71

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0
0 to 0.1
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0
0 to 0.4
Magnesium (Mg), % 94.9 to 97.1
0
Nickel (Ni), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.25
Titanium (Ti), % 0
87.5 to 91
Vanadium (V), % 0
3.5 to 4.5
Zinc (Zn), % 2.5 to 4.0
0
Zirconium (Zr), % 0.45 to 0.8
0
Residuals, % 0 to 0.3
0 to 0.4