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Grade 28 Titanium vs. ZE41A Magnesium

Grade 28 titanium belongs to the titanium alloys classification, while ZE41A magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, 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 ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
45
Elongation at Break, % 11 to 17
3.3
Fatigue Strength, MPa 330 to 480
98
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
18
Shear Strength, MPa 420 to 590
150
Tensile Strength: Ultimate (UTS), MPa 690 to 980
210
Tensile Strength: Yield (Proof), MPa 540 to 810
140

Thermal Properties

Latent Heat of Fusion, J/g 410
330
Maximum Temperature: Mechanical, °C 330
150
Melting Completion (Liquidus), °C 1640
640
Melting Onset (Solidus), °C 1590
540
Specific Heat Capacity, J/kg-K 550
970
Thermal Conductivity, W/m-K 8.3
110
Thermal Expansion, µm/m-K 9.9
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
27
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
130

Otherwise Unclassified Properties

Base Metal Price, % relative 36
18
Density, g/cm3 4.5
1.9
Embodied Carbon, kg CO2/kg material 37
24
Embodied Energy, MJ/kg 600
170
Embodied Water, L/kg 370
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 110
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 1370 to 3100
220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
63
Strength to Weight: Axial, points 43 to 61
31
Strength to Weight: Bending, points 39 to 49
41
Thermal Diffusivity, mm2/s 3.4
59
Thermal Shock Resistance, points 47 to 66
12

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
0 to 0.1
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
0
Magnesium (Mg), % 0
91.7 to 95.4
Manganese (Mn), % 0
0 to 0.15
Nickel (Ni), % 0
0 to 0.010
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
Unspecified Rare Earths, % 0
0.75 to 1.8
Vanadium (V), % 2.0 to 3.0
0
Zinc (Zn), % 0
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3