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EN-MC21220 Magnesium vs. Type 3 Niobium

EN-MC21220 magnesium belongs to the magnesium alloys classification, while Type 3 niobium belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (10, 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-MC21220 magnesium and the bottom bar is Type 3 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 58
110
Elastic (Young's, Tensile) Modulus, GPa 45
100
Elongation at Break, % 11
23
Poisson's Ratio 0.29
0.4
Shear Modulus, GPa 17
38
Tensile Strength: Ultimate (UTS), MPa 210
220
Tensile Strength: Yield (Proof), MPa 120
140

Thermal Properties

Latent Heat of Fusion, J/g 350
310
Specific Heat Capacity, J/kg-K 1000
270
Thermal Conductivity, W/m-K 65
42
Thermal Expansion, µm/m-K 27
7.3

Otherwise Unclassified Properties

Density, g/cm3 1.7
8.6
Embodied Water, L/kg 990
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
44
Resilience: Unit (Modulus of Resilience), kJ/m3 160
93
Stiffness to Weight: Axial, points 15
6.8
Stiffness to Weight: Bending, points 71
18
Strength to Weight: Axial, points 34
7.2
Strength to Weight: Bending, points 46
9.5
Thermal Diffusivity, mm2/s 39
18
Thermal Shock Resistance, points 12
21

Alloy Composition


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Aluminum (Al), % 4.4 to 5.5
0
Carbon (C), % 0
0 to 0.010
Copper (Cu), % 0 to 0.010
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0 to 0.0050
0 to 0.0050
Magnesium (Mg), % 93.5 to 95.5
0
Manganese (Mn), % 0.1 to 0.6
0
Molybdenum (Mo), % 0
0 to 0.010
Nickel (Ni), % 0 to 0.0020
0 to 0.0050
Niobium (Nb), % 0
98.6 to 99.2
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.015
Silicon (Si), % 0 to 0.1
0 to 0.0050
Tantalum (Ta), % 0
0 to 0.1
Titanium (Ti), % 0
0 to 0.020
Tungsten (W), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.3
0
Zirconium (Zr), % 0
0.8 to 1.2
Residuals, % 0 to 0.010
0