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EN 1.5663 Steel vs. EV31A Magnesium

EN 1.5663 steel belongs to the iron alloys classification, while EV31A magnesium belongs to the magnesium 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 EN 1.5663 steel and the bottom bar is EV31A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
70
Elastic (Young's, Tensile) Modulus, GPa 190
44
Elongation at Break, % 20
3.5
Fatigue Strength, MPa 450
120
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
17
Shear Strength, MPa 470
170
Tensile Strength: Ultimate (UTS), MPa 750
260
Tensile Strength: Yield (Proof), MPa 660
170

Thermal Properties

Maximum Temperature: Mechanical, °C 430
200
Melting Onset (Solidus), °C 1410
590
Specific Heat Capacity, J/kg-K 470
1000
Thermal Expansion, µm/m-K 13
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.7
18
Electrical Conductivity: Equal Weight (Specific), % IACS 9.8
90

Otherwise Unclassified Properties

Density, g/cm3 8.0
1.8

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
8.1
Resilience: Unit (Modulus of Resilience), kJ/m3 1150
330
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
65
Strength to Weight: Axial, points 26
40
Strength to Weight: Bending, points 23
50
Thermal Shock Resistance, points 22
16