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ISO-WD43150 Magnesium vs. Grade Ti-Pd18 Titanium

ISO-WD43150 magnesium belongs to the magnesium alloys classification, while grade Ti-Pd18 titanium belongs to the titanium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 Ti-Pd18 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 2.8
17
Fatigue Strength, MPa 100
350
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 18
40
Tensile Strength: Ultimate (UTS), MPa 250
710
Tensile Strength: Yield (Proof), MPa 150
540

Thermal Properties

Latent Heat of Fusion, J/g 350
410
Maximum Temperature: Mechanical, °C 95
330
Melting Completion (Liquidus), °C 610
1640
Melting Onset (Solidus), °C 590
1590
Specific Heat Capacity, J/kg-K 990
550
Thermal Conductivity, W/m-K 140
8.2
Thermal Expansion, µm/m-K 27
9.1

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 170
2.7

Otherwise Unclassified Properties

Density, g/cm3 1.7
4.5
Embodied Carbon, kg CO2/kg material 24
41
Embodied Energy, MJ/kg 160
670
Embodied Water, L/kg 970
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.1
110
Resilience: Unit (Modulus of Resilience), kJ/m3 250
1380
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 71
35
Strength to Weight: Axial, points 41
44
Strength to Weight: Bending, points 52
39
Thermal Diffusivity, mm2/s 81
3.3
Thermal Shock Resistance, points 14
52

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.5
Carbon (C), % 0
0 to 0.1
Copper (Cu), % 0 to 0.050
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0
0 to 0.25
Magnesium (Mg), % 97.5 to 98.8
0
Manganese (Mn), % 1.2 to 2.0
0
Nickel (Ni), % 0 to 0.010
0 to 0.050
Oxygen (O), % 0
0 to 0.15
Palladium (Pd), % 0
0.040 to 0.080
Silicon (Si), % 0 to 0.1
0
Titanium (Ti), % 0
92.5 to 95.5
Vanadium (V), % 0
2.0 to 3.0
Residuals, % 0
0 to 0.4