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AS41B Magnesium vs. Grade 33 Titanium

AS41B magnesium belongs to the magnesium alloys classification, while grade 33 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 33 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 6.0
23
Fatigue Strength, MPa 97
250
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 18
41
Shear Strength, MPa 120
240
Tensile Strength: Ultimate (UTS), MPa 210
390
Tensile Strength: Yield (Proof), MPa 140
350

Thermal Properties

Latent Heat of Fusion, J/g 370
420
Maximum Temperature: Mechanical, °C 110
320
Melting Completion (Liquidus), °C 620
1660
Melting Onset (Solidus), °C 570
1610
Specific Heat Capacity, J/kg-K 1000
540
Thermal Conductivity, W/m-K 68
21
Thermal Expansion, µm/m-K 26
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 92
6.9

Otherwise Unclassified Properties

Base Metal Price, % relative 12
55
Density, g/cm3 1.7
4.5
Embodied Carbon, kg CO2/kg material 23
33
Embodied Energy, MJ/kg 160
530
Embodied Water, L/kg 980
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
86
Resilience: Unit (Modulus of Resilience), kJ/m3 220
590
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 72
35
Strength to Weight: Axial, points 35
24
Strength to Weight: Bending, points 47
26
Thermal Diffusivity, mm2/s 41
8.7
Thermal Shock Resistance, points 13
30

Alloy Composition


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Aluminum (Al), % 3.5 to 5.0
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
0.1 to 0.2
Copper (Cu), % 0 to 0.020
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.0035
0 to 0.3
Magnesium (Mg), % 92.7 to 95.7
0
Manganese (Mn), % 0.35 to 0.7
0
Nickel (Ni), % 0 to 0.0020
0.35 to 0.55
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Palladium (Pd), % 0
0.010 to 0.020
Ruthenium (Ru), % 0
0.020 to 0.040
Silicon (Si), % 0.5 to 1.5
0
Titanium (Ti), % 0
98.1 to 99.52
Zinc (Zn), % 0 to 0.12
0
Residuals, % 0
0 to 0.4