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EN 1.4482 Stainless Steel vs. EV31A Magnesium

EN 1.4482 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 (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 1.4482 stainless steel and the bottom bar is EV31A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
44
Elongation at Break, % 34
3.5
Fatigue Strength, MPa 420 to 450
120
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 78
17
Shear Strength, MPa 510 to 530
170
Tensile Strength: Ultimate (UTS), MPa 770 to 800
260
Tensile Strength: Yield (Proof), MPa 530 to 570
170

Thermal Properties

Maximum Temperature: Mechanical, °C 980
200
Melting Onset (Solidus), °C 1370
590
Specific Heat Capacity, J/kg-K 480
1000
Thermal Conductivity, W/m-K 15
86
Thermal Expansion, µm/m-K 13
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
18
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
90

Otherwise Unclassified Properties

Density, g/cm3 7.7
1.8

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230 to 250
8.1
Resilience: Unit (Modulus of Resilience), kJ/m3 690 to 820
330
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
65
Strength to Weight: Axial, points 28 to 29
40
Strength to Weight: Bending, points 24 to 25
50
Thermal Diffusivity, mm2/s 4.0
47
Thermal Shock Resistance, points 21 to 22
16