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AS41A Magnesium vs. Grade 28 Titanium

AS41A magnesium belongs to the magnesium alloys classification, while grade 28 titanium belongs to the titanium 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 AS41A magnesium and the bottom bar is grade 28 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 11
11 to 17
Fatigue Strength, MPa 100
330 to 480
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 17
40
Shear Strength, MPa 130
420 to 590
Tensile Strength: Ultimate (UTS), MPa 230
690 to 980
Tensile Strength: Yield (Proof), MPa 140
540 to 810

Thermal Properties

Latent Heat of Fusion, J/g 370
410
Maximum Temperature: Mechanical, °C 110
330
Melting Completion (Liquidus), °C 620
1640
Melting Onset (Solidus), °C 570
1590
Specific Heat Capacity, J/kg-K 1000
550
Thermal Conductivity, W/m-K 68
8.3
Thermal Expansion, µm/m-K 26
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 92
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 12
36
Density, g/cm3 1.6
4.5
Embodied Carbon, kg CO2/kg material 23
37
Embodied Energy, MJ/kg 160
600
Embodied Water, L/kg 980
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
87 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 220
1370 to 3100
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 72
35
Strength to Weight: Axial, points 38
43 to 61
Strength to Weight: Bending, points 50
39 to 49
Thermal Diffusivity, mm2/s 41
3.4
Thermal Shock Resistance, points 14
47 to 66

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
2.5 to 3.5
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 0 to 0.060
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0
0 to 0.25
Magnesium (Mg), % 92.8 to 95.8
0
Manganese (Mn), % 0.2 to 0.5
0
Nickel (Ni), % 0 to 0.030
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.15
Ruthenium (Ru), % 0
0.080 to 0.14
Silicon (Si), % 0.5 to 1.5
0
Titanium (Ti), % 0
92.4 to 95.4
Vanadium (V), % 0
2.0 to 3.0
Zinc (Zn), % 0 to 0.12
0
Residuals, % 0
0 to 0.4