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EZ33A Magnesium vs. EN 1.6554 Steel

EZ33A magnesium belongs to the magnesium alloys classification, while EN 1.6554 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 EN 1.6554 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
230 to 280
Elastic (Young's, Tensile) Modulus, GPa 44
190
Elongation at Break, % 2.6
17 to 21
Fatigue Strength, MPa 70
380 to 520
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
73
Tensile Strength: Ultimate (UTS), MPa 150
780 to 930
Tensile Strength: Yield (Proof), MPa 100
550 to 790

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Maximum Temperature: Mechanical, °C 250
420
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 570
1420
Specific Heat Capacity, J/kg-K 970
470
Thermal Conductivity, W/m-K 100
40
Thermal Expansion, µm/m-K 27
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 110
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 25
3.4
Density, g/cm3 1.9
7.9
Embodied Carbon, kg CO2/kg material 25
1.7
Embodied Energy, MJ/kg 190
22
Embodied Water, L/kg 930
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.6
140 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 120
810 to 1650
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 61
24
Strength to Weight: Axial, points 22
27 to 33
Strength to Weight: Bending, points 33
24 to 27
Thermal Diffusivity, mm2/s 54
11
Thermal Shock Resistance, points 9.2
23 to 27

Alloy Composition

Carbon (C), % 0
0.23 to 0.28
Chromium (Cr), % 0
0.7 to 0.9
Copper (Cu), % 0 to 0.1
0 to 0.3
Iron (Fe), % 0
94.6 to 97.3
Magnesium (Mg), % 91.5 to 95
0
Manganese (Mn), % 0
0.6 to 0.9
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 0 to 0.010
1.0 to 2.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.6
Sulfur (S), % 0
0 to 0.025
Unspecified Rare Earths, % 2.5 to 4.0
0
Vanadium (V), % 0
0 to 0.030
Zinc (Zn), % 2.0 to 3.1
0
Zirconium (Zr), % 0.5 to 1.0
0
Residuals, % 0 to 0.3
0