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ISO-WD32250 Magnesium vs. Grade Ti-Pd18 Titanium

ISO-WD32250 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-WD32250 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, % 4.5 to 8.6
17
Fatigue Strength, MPa 170 to 210
350
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 17
40
Tensile Strength: Ultimate (UTS), MPa 310 to 330
710
Tensile Strength: Yield (Proof), MPa 240 to 290
540

Thermal Properties

Latent Heat of Fusion, J/g 340
410
Maximum Temperature: Mechanical, °C 120
330
Melting Completion (Liquidus), °C 600
1640
Melting Onset (Solidus), °C 550
1590
Specific Heat Capacity, J/kg-K 980
550
Thermal Conductivity, W/m-K 130
8.2
Thermal Expansion, µm/m-K 26
9.1

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 130
2.7

Otherwise Unclassified Properties

Density, g/cm3 1.8
4.5
Embodied Carbon, kg CO2/kg material 24
41
Embodied Energy, MJ/kg 160
670
Embodied Water, L/kg 950
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14 to 26
110
Resilience: Unit (Modulus of Resilience), kJ/m3 630 to 930
1380
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 67
35
Strength to Weight: Axial, points 49 to 51
44
Strength to Weight: Bending, points 58 to 60
39
Thermal Diffusivity, mm2/s 72
3.3
Thermal Shock Resistance, points 19 to 20
52

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.5
Carbon (C), % 0
0 to 0.1
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0
0 to 0.25
Magnesium (Mg), % 94.9 to 97.1
0
Nickel (Ni), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.15
Palladium (Pd), % 0
0.040 to 0.080
Titanium (Ti), % 0
92.5 to 95.5
Vanadium (V), % 0
2.0 to 3.0
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