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Grade 28 Titanium vs. ISO-WD32250 Magnesium

Grade 28 titanium belongs to the titanium alloys classification, while ISO-WD32250 magnesium belongs to the magnesium 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 grade 28 titanium and the bottom bar is ISO-WD32250 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
45
Elongation at Break, % 11 to 17
4.5 to 8.6
Fatigue Strength, MPa 330 to 480
170 to 210
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
17
Shear Strength, MPa 420 to 590
180 to 190
Tensile Strength: Ultimate (UTS), MPa 690 to 980
310 to 330
Tensile Strength: Yield (Proof), MPa 540 to 810
240 to 290

Thermal Properties

Latent Heat of Fusion, J/g 410
340
Maximum Temperature: Mechanical, °C 330
120
Melting Completion (Liquidus), °C 1640
600
Melting Onset (Solidus), °C 1590
550
Specific Heat Capacity, J/kg-K 550
980
Thermal Conductivity, W/m-K 8.3
130
Thermal Expansion, µm/m-K 9.9
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
25
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
130

Otherwise Unclassified Properties

Base Metal Price, % relative 36
13
Density, g/cm3 4.5
1.8
Embodied Carbon, kg CO2/kg material 37
24
Embodied Energy, MJ/kg 600
160
Embodied Water, L/kg 370
950

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 110
14 to 26
Resilience: Unit (Modulus of Resilience), kJ/m3 1370 to 3100
630 to 930
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
67
Strength to Weight: Axial, points 43 to 61
49 to 51
Strength to Weight: Bending, points 39 to 49
58 to 60
Thermal Diffusivity, mm2/s 3.4
72
Thermal Shock Resistance, points 47 to 66
19 to 20

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Carbon (C), % 0 to 0.080
0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
0
Magnesium (Mg), % 0
94.9 to 97.1
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.15
0
Ruthenium (Ru), % 0.080 to 0.14
0
Titanium (Ti), % 92.4 to 95.4
0
Vanadium (V), % 2.0 to 3.0
0
Zinc (Zn), % 0
2.5 to 4.0
Zirconium (Zr), % 0
0.45 to 0.8
Residuals, % 0
0 to 0.3