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AWS E2593 vs. EV31A Magnesium

AWS E2593 belongs to the iron alloys classification, while EV31A magnesium belongs to the magnesium alloys. There are 16 material properties with values for both materials. Properties with values for just one material (18, 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 AWS E2593 and the bottom bar is EV31A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
44
Elongation at Break, % 17
3.5
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 80
17
Tensile Strength: Ultimate (UTS), MPa 850
260

Thermal Properties

Melting Onset (Solidus), °C 1390
590
Specific Heat Capacity, J/kg-K 470
1000
Thermal Conductivity, W/m-K 16
86
Thermal Expansion, µm/m-K 14
27

Otherwise Unclassified Properties

Density, g/cm3 7.8
1.8

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
65
Strength to Weight: Axial, points 30
40
Strength to Weight: Bending, points 25
50
Thermal Diffusivity, mm2/s 4.3
47
Thermal Shock Resistance, points 21
16