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EV31A Magnesium vs. AWS E110C-K3

EV31A magnesium belongs to the magnesium alloys classification, while AWS E110C-K3 belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (12, 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 AWS E110C-K3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
190
Elongation at Break, % 3.5
17
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 17
73
Tensile Strength: Ultimate (UTS), MPa 260
870
Tensile Strength: Yield (Proof), MPa 170
760

Thermal Properties

Melting Onset (Solidus), °C 590
1410
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 86
48
Thermal Expansion, µm/m-K 27
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 90
9.0

Otherwise Unclassified Properties

Density, g/cm3 1.8
7.8

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.1
140
Resilience: Unit (Modulus of Resilience), kJ/m3 330
1550
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 65
24
Strength to Weight: Axial, points 40
31
Strength to Weight: Bending, points 50
26
Thermal Diffusivity, mm2/s 47
13
Thermal Shock Resistance, points 16
26