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EN 1.4416 Stainless Steel vs. EV31A Magnesium

EN 1.4416 stainless steel belongs to the iron alloys classification, while EV31A magnesium belongs to the magnesium alloys. There are 24 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 EN 1.4416 stainless steel and the bottom bar is EV31A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
70
Elastic (Young's, Tensile) Modulus, GPa 200
44
Elongation at Break, % 34
3.5
Fatigue Strength, MPa 170
120
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 79
17
Tensile Strength: Ultimate (UTS), MPa 500
260
Tensile Strength: Yield (Proof), MPa 210
170

Thermal Properties

Maximum Temperature: Mechanical, °C 1100
200
Melting Onset (Solidus), °C 1400
590
Specific Heat Capacity, J/kg-K 470
1000
Thermal Conductivity, W/m-K 12
86
Thermal Expansion, µm/m-K 15
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
18
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
90

Otherwise Unclassified Properties

Density, g/cm3 8.1
1.8

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
8.1
Resilience: Unit (Modulus of Resilience), kJ/m3 110
330
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
65
Strength to Weight: Axial, points 17
40
Strength to Weight: Bending, points 17
50
Thermal Diffusivity, mm2/s 3.2
47
Thermal Shock Resistance, points 12
16