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EV31A Magnesium vs. Chromium 33

EV31A magnesium belongs to the magnesium alloys classification, while chromium 33 belongs to the otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (16, 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 chromium 33.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 3.5
45
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 17
81
Tensile Strength: Ultimate (UTS), MPa 260
850
Tensile Strength: Yield (Proof), MPa 170
430

Thermal Properties

Specific Heat Capacity, J/kg-K 1000
480
Thermal Expansion, µm/m-K 27
14

Otherwise Unclassified Properties

Density, g/cm3 1.8
7.9

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.1
320
Resilience: Unit (Modulus of Resilience), kJ/m3 330
450
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 65
25
Strength to Weight: Axial, points 40
30
Strength to Weight: Bending, points 50
25
Thermal Shock Resistance, points 16
21