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ISO-WD43150 Magnesium vs. Titanium 4-4-2

ISO-WD43150 magnesium belongs to the magnesium alloys classification, while titanium 4-4-2 belongs to the titanium alloys. There are 28 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-WD43150 magnesium and the bottom bar is titanium 4-4-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 2.8
10
Fatigue Strength, MPa 100
590 to 620
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 18
42
Shear Strength, MPa 140
690 to 750
Tensile Strength: Ultimate (UTS), MPa 250
1150 to 1250
Tensile Strength: Yield (Proof), MPa 150
1030 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 350
410
Maximum Temperature: Mechanical, °C 95
310
Melting Completion (Liquidus), °C 610
1610
Melting Onset (Solidus), °C 590
1560
Specific Heat Capacity, J/kg-K 990
540
Thermal Conductivity, W/m-K 140
6.7
Thermal Expansion, µm/m-K 27
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
39
Density, g/cm3 1.7
4.7
Embodied Carbon, kg CO2/kg material 24
30
Embodied Energy, MJ/kg 160
480
Embodied Water, L/kg 970
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.1
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 250
4700 to 5160
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 71
34
Strength to Weight: Axial, points 41
68 to 74
Strength to Weight: Bending, points 52
52 to 55
Thermal Diffusivity, mm2/s 81
2.6
Thermal Shock Resistance, points 14
86 to 93

Alloy Composition

Aluminum (Al), % 0
3.0 to 5.0
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 0.2
Magnesium (Mg), % 97.5 to 98.8
0
Manganese (Mn), % 1.2 to 2.0
0
Molybdenum (Mo), % 0
3.0 to 5.0
Nickel (Ni), % 0 to 0.010
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.25
Silicon (Si), % 0 to 0.1
0.3 to 0.7
Tin (Sn), % 0
1.5 to 2.5
Titanium (Ti), % 0
85.8 to 92.2
Residuals, % 0 to 0.3
0 to 0.4