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Grade 3 Titanium vs. WE54A Magnesium

Grade 3 titanium belongs to the titanium alloys classification, while WE54A magnesium belongs to the magnesium alloys. There are 31 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 grade 3 titanium and the bottom bar is WE54A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
85
Elastic (Young's, Tensile) Modulus, GPa 110
44
Elongation at Break, % 21
4.3 to 5.6
Fatigue Strength, MPa 300
98 to 130
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 39
17
Shear Strength, MPa 320
150 to 170
Tensile Strength: Ultimate (UTS), MPa 510
270 to 300
Tensile Strength: Yield (Proof), MPa 440
180

Thermal Properties

Latent Heat of Fusion, J/g 420
330
Maximum Temperature: Mechanical, °C 320
170
Melting Completion (Liquidus), °C 1660
640
Melting Onset (Solidus), °C 1610
570
Specific Heat Capacity, J/kg-K 540
960
Thermal Conductivity, W/m-K 21
52
Thermal Expansion, µm/m-K 9.2
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
10
Electrical Conductivity: Equal Weight (Specific), % IACS 6.6
47

Otherwise Unclassified Properties

Base Metal Price, % relative 37
34
Density, g/cm3 4.5
1.9
Embodied Carbon, kg CO2/kg material 31
29
Embodied Energy, MJ/kg 510
260
Embodied Water, L/kg 110
900

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
10 to 14
Resilience: Unit (Modulus of Resilience), kJ/m3 910
360 to 380
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
62
Strength to Weight: Axial, points 32
39 to 43
Strength to Weight: Bending, points 32
49 to 51
Thermal Diffusivity, mm2/s 8.6
28
Thermal Shock Resistance, points 37
18 to 19

Alloy Composition

Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
0 to 0.030
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
0 to 0.010
Lithium (Li), % 0
0 to 0.2
Magnesium (Mg), % 0
88.7 to 93.4
Manganese (Mn), % 0
0 to 0.030
Nickel (Ni), % 0
0 to 0.0050
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.35
0
Silicon (Si), % 0
0 to 0.010
Titanium (Ti), % 98.8 to 100
0
Unspecified Rare Earths, % 0
1.5 to 4.0
Yttrium (Y), % 0
4.8 to 5.5
Zinc (Zn), % 0
0 to 0.2
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3