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AS41B Magnesium vs. Grade 29 Titanium

AS41B magnesium belongs to the magnesium alloys classification, while grade 29 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 AS41B magnesium and the bottom bar is grade 29 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 6.0
6.8 to 11
Fatigue Strength, MPa 97
460 to 510
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 18
40
Shear Strength, MPa 120
550 to 560
Tensile Strength: Ultimate (UTS), MPa 210
930 to 940
Tensile Strength: Yield (Proof), MPa 140
850 to 870

Thermal Properties

Latent Heat of Fusion, J/g 370
410
Maximum Temperature: Mechanical, °C 110
340
Melting Completion (Liquidus), °C 620
1610
Melting Onset (Solidus), °C 570
1560
Specific Heat Capacity, J/kg-K 1000
560
Thermal Conductivity, W/m-K 68
7.3
Thermal Expansion, µm/m-K 26
9.3

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 92
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 12
36
Density, g/cm3 1.7
4.5
Embodied Carbon, kg CO2/kg material 23
39
Embodied Energy, MJ/kg 160
640
Embodied Water, L/kg 980
410

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
62 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 220
3420 to 3540
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 72
35
Strength to Weight: Axial, points 35
58 to 59
Strength to Weight: Bending, points 47
47 to 48
Thermal Diffusivity, mm2/s 41
2.9
Thermal Shock Resistance, points 13
68 to 69

Alloy Composition


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Aluminum (Al), % 3.5 to 5.0
5.5 to 6.5
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 0 to 0.020
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.0035
0 to 0.25
Magnesium (Mg), % 92.7 to 95.7
0
Manganese (Mn), % 0.35 to 0.7
0
Nickel (Ni), % 0 to 0.0020
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.13
Ruthenium (Ru), % 0
0.080 to 0.14
Silicon (Si), % 0.5 to 1.5
0
Titanium (Ti), % 0
88 to 90.9
Vanadium (V), % 0
3.5 to 4.5
Zinc (Zn), % 0 to 0.12
0
Residuals, % 0
0 to 0.4