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EV31A Magnesium vs. EN 1.1165 Cast Steel

EV31A magnesium belongs to the magnesium alloys classification, while EN 1.1165 cast steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (11, 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 EN 1.1165 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
190
Elongation at Break, % 3.5
11 to 20
Fatigue Strength, MPa 120
200 to 380
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 17
73
Tensile Strength: Ultimate (UTS), MPa 260
600 to 780
Tensile Strength: Yield (Proof), MPa 170
290 to 620

Thermal Properties

Maximum Temperature: Mechanical, °C 200
400
Melting Onset (Solidus), °C 590
1420
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 86
51
Thermal Expansion, µm/m-K 27
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 90
8.9

Otherwise Unclassified Properties

Density, g/cm3 1.8
7.8

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.1
81 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 330
230 to 1010
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 65
24
Strength to Weight: Axial, points 40
21 to 28
Strength to Weight: Bending, points 50
20 to 24
Thermal Diffusivity, mm2/s 47
14
Thermal Shock Resistance, points 16
19 to 25