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EN-MC65120 Magnesium vs. Titanium 4-4-2

EN-MC65120 magnesium belongs to the magnesium alloys classification, while titanium 4-4-2 belongs to the titanium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 EN-MC65120 magnesium and the bottom bar is titanium 4-4-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 3.1
10
Fatigue Strength, MPa 80
590 to 620
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 17
42
Shear Strength, MPa 92
690 to 750
Tensile Strength: Ultimate (UTS), MPa 160
1150 to 1250
Tensile Strength: Yield (Proof), MPa 110
1030 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 330
410
Maximum Temperature: Mechanical, °C 180
310
Melting Completion (Liquidus), °C 590
1610
Melting Onset (Solidus), °C 520
1560
Specific Heat Capacity, J/kg-K 970
540
Thermal Conductivity, W/m-K 100
6.7
Thermal Expansion, µm/m-K 26
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 25
39
Density, g/cm3 1.9
4.7
Embodied Carbon, kg CO2/kg material 25
30
Embodied Energy, MJ/kg 190
480
Embodied Water, L/kg 930
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 140
4700 to 5160
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 62
34
Strength to Weight: Axial, points 23
68 to 74
Strength to Weight: Bending, points 34
52 to 55
Thermal Diffusivity, mm2/s 56
2.6
Thermal Shock Resistance, points 9.8
86 to 93

Alloy Composition


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Aluminum (Al), % 0
3.0 to 5.0
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 0 to 0.030
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.010
0 to 0.2
Magnesium (Mg), % 91.8 to 95.1
0
Manganese (Mn), % 0 to 0.15
0
Molybdenum (Mo), % 0
3.0 to 5.0
Nickel (Ni), % 0 to 0.0050
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.25
Silicon (Si), % 0 to 0.010
0.3 to 0.7
Tin (Sn), % 0
1.5 to 2.5
Titanium (Ti), % 0
85.8 to 92.2
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.4