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EV31A Magnesium vs. Type 4 Niobium

EV31A magnesium belongs to the magnesium alloys classification, while Type 4 niobium belongs to the otherwise unclassified metals. There are 19 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 EV31A magnesium and the bottom bar is Type 4 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 70
120
Elastic (Young's, Tensile) Modulus, GPa 44
110
Elongation at Break, % 3.5
23
Poisson's Ratio 0.27
0.4
Shear Modulus, GPa 17
38
Tensile Strength: Ultimate (UTS), MPa 260
220
Tensile Strength: Yield (Proof), MPa 170
140

Thermal Properties

Specific Heat Capacity, J/kg-K 1000
270
Thermal Conductivity, W/m-K 86
42
Thermal Expansion, µm/m-K 27
7.3

Otherwise Unclassified Properties

Density, g/cm3 1.8
8.6

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.1
44
Resilience: Unit (Modulus of Resilience), kJ/m3 330
93
Stiffness to Weight: Axial, points 13
6.8
Stiffness to Weight: Bending, points 65
18
Strength to Weight: Axial, points 40
7.2
Strength to Weight: Bending, points 50
9.5
Thermal Diffusivity, mm2/s 47
18
Thermal Shock Resistance, points 16
21