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ISO-WD32250 Magnesium vs. Titanium 6-7

ISO-WD32250 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 ISO-WD32250 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, % 4.5 to 8.6
11
Fatigue Strength, MPa 170 to 210
530
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
45
Shear Strength, MPa 180 to 190
610
Tensile Strength: Ultimate (UTS), MPa 310 to 330
1020
Tensile Strength: Yield (Proof), MPa 240 to 290
900

Thermal Properties

Latent Heat of Fusion, J/g 340
410
Maximum Temperature: Mechanical, °C 120
300
Melting Completion (Liquidus), °C 600
1700
Melting Onset (Solidus), °C 550
1650
Specific Heat Capacity, J/kg-K 980
520
Thermal Expansion, µm/m-K 26
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
75
Density, g/cm3 1.8
5.1
Embodied Carbon, kg CO2/kg material 24
34
Embodied Energy, MJ/kg 160
540
Embodied Water, L/kg 950
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14 to 26
110
Resilience: Unit (Modulus of Resilience), kJ/m3 630 to 930
3460
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 67
32
Strength to Weight: Axial, points 49 to 51
56
Strength to Weight: Bending, points 58 to 60
44
Thermal Shock Resistance, points 19 to 20
66

Alloy Composition


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Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0
0 to 0.080
Hydrogen (H), % 0
0 to 0.0090
Iron (Fe), % 0
0 to 0.25
Magnesium (Mg), % 94.9 to 97.1
0
Molybdenum (Mo), % 0
6.5 to 7.5
Niobium (Nb), % 0
6.5 to 7.5
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
84.9 to 88
Zinc (Zn), % 2.5 to 4.0
0
Zirconium (Zr), % 0.45 to 0.8
0
Residuals, % 0 to 0.3
0