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ISO-WD43150 Magnesium vs. Grade 6 Titanium

ISO-WD43150 magnesium belongs to the magnesium alloys classification, while grade 6 titanium belongs to the titanium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, 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-WD43150 magnesium and the bottom bar is grade 6 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
100
Elongation at Break, % 2.8
11
Fatigue Strength, MPa 100
290
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 18
39
Shear Strength, MPa 140
530
Tensile Strength: Ultimate (UTS), MPa 250
890
Tensile Strength: Yield (Proof), MPa 150
840

Thermal Properties

Latent Heat of Fusion, J/g 350
410
Maximum Temperature: Mechanical, °C 95
310
Melting Completion (Liquidus), °C 610
1580
Melting Onset (Solidus), °C 590
1530
Specific Heat Capacity, J/kg-K 990
550
Thermal Conductivity, W/m-K 140
7.8
Thermal Expansion, µm/m-K 27
9.4

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
1.2
Electrical Conductivity: Equal Weight (Specific), % IACS 170
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 12
36
Density, g/cm3 1.7
4.5
Embodied Carbon, kg CO2/kg material 24
30
Embodied Energy, MJ/kg 160
480
Embodied Water, L/kg 970
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.1
92
Resilience: Unit (Modulus of Resilience), kJ/m3 250
3390
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 71
35
Strength to Weight: Axial, points 41
55
Strength to Weight: Bending, points 52
46
Thermal Diffusivity, mm2/s 81
3.2
Thermal Shock Resistance, points 14
65

Alloy Composition

Aluminum (Al), % 0
4.0 to 6.0
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 0 to 0.050
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0
0 to 0.5
Magnesium (Mg), % 97.5 to 98.8
0
Manganese (Mn), % 1.2 to 2.0
0
Nickel (Ni), % 0 to 0.010
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.2
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 0
2.0 to 3.0
Titanium (Ti), % 0
89.8 to 94
Residuals, % 0 to 0.3
0 to 0.4