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AS41B Magnesium vs. Titanium 6-7

AS41B magnesium belongs to the magnesium alloys classification, while titanium 6-7 belongs to the titanium alloys. There are 26 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 AS41B magnesium and the bottom bar is titanium 6-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
120
Elongation at Break, % 6.0
11
Fatigue Strength, MPa 97
530
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
45
Shear Strength, MPa 120
610
Tensile Strength: Ultimate (UTS), MPa 210
1020
Tensile Strength: Yield (Proof), MPa 140
900

Thermal Properties

Latent Heat of Fusion, J/g 370
410
Maximum Temperature: Mechanical, °C 110
300
Melting Completion (Liquidus), °C 620
1700
Melting Onset (Solidus), °C 570
1650
Specific Heat Capacity, J/kg-K 1000
520
Thermal Expansion, µm/m-K 26
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
75
Density, g/cm3 1.7
5.1
Embodied Carbon, kg CO2/kg material 23
34
Embodied Energy, MJ/kg 160
540
Embodied Water, L/kg 980
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
110
Resilience: Unit (Modulus of Resilience), kJ/m3 220
3460
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 72
32
Strength to Weight: Axial, points 35
56
Strength to Weight: Bending, points 47
44
Thermal Shock Resistance, points 13
66

Alloy Composition

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 0.0090
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
Molybdenum (Mo), % 0
6.5 to 7.5
Nickel (Ni), % 0 to 0.0020
0
Niobium (Nb), % 0
6.5 to 7.5
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Silicon (Si), % 0.5 to 1.5
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
84.9 to 88
Zinc (Zn), % 0 to 0.12
0