MakeItFrom.com
Menu (ESC)

EZ33A Magnesium vs. S32808 Stainless Steel

EZ33A magnesium belongs to the magnesium alloys classification, while S32808 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (5, 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 EZ33A magnesium and the bottom bar is S32808 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
270
Elastic (Young's, Tensile) Modulus, GPa 44
210
Elongation at Break, % 2.6
17
Fatigue Strength, MPa 70
350
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 17
81
Shear Strength, MPa 140
480
Tensile Strength: Ultimate (UTS), MPa 150
780
Tensile Strength: Yield (Proof), MPa 100
570

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Maximum Temperature: Mechanical, °C 250
1100
Melting Completion (Liquidus), °C 640
1470
Melting Onset (Solidus), °C 570
1420
Specific Heat Capacity, J/kg-K 970
480
Thermal Conductivity, W/m-K 100
14
Thermal Expansion, µm/m-K 27
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 25
24
Density, g/cm3 1.9
7.9
Embodied Carbon, kg CO2/kg material 25
4.0
Embodied Energy, MJ/kg 190
57
Embodied Water, L/kg 930
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.6
120
Resilience: Unit (Modulus of Resilience), kJ/m3 120
790
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 61
25
Strength to Weight: Axial, points 22
27
Strength to Weight: Bending, points 33
24
Thermal Diffusivity, mm2/s 54
3.8
Thermal Shock Resistance, points 9.2
21

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
27 to 27.9
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0
58.1 to 62.8
Magnesium (Mg), % 91.5 to 95
0
Manganese (Mn), % 0
0 to 1.1
Molybdenum (Mo), % 0
0.8 to 1.2
Nickel (Ni), % 0 to 0.010
7.0 to 8.2
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Tungsten (W), % 0
2.1 to 2.5
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.1
0
Zirconium (Zr), % 0.5 to 1.0
0
Residuals, % 0 to 0.3
0