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EN-MC21320 Magnesium vs. EN 1.5520 Steel

EN-MC21320 magnesium belongs to the magnesium alloys classification, while EN 1.5520 steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, 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-MC21320 magnesium and the bottom bar is EN 1.5520 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 68
120 to 170
Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 7.5
11 to 21
Fatigue Strength, MPa 95
210 to 300
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
73
Shear Strength, MPa 130
290 to 340
Tensile Strength: Ultimate (UTS), MPa 230
410 to 1410
Tensile Strength: Yield (Proof), MPa 140
300 to 480

Thermal Properties

Latent Heat of Fusion, J/g 370
250
Maximum Temperature: Mechanical, °C 110
400
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 530
1420
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 66
50
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 91
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.9
Density, g/cm3 1.6
7.8
Embodied Carbon, kg CO2/kg material 23
1.4
Embodied Energy, MJ/kg 160
19
Embodied Water, L/kg 980
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
42 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 200
240 to 600
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 72
24
Strength to Weight: Axial, points 38
15 to 50
Strength to Weight: Bending, points 50
16 to 36
Thermal Diffusivity, mm2/s 40
13
Thermal Shock Resistance, points 13
12 to 41

Alloy Composition


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Aluminum (Al), % 3.5 to 5.0
0
Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0
0.15 to 0.2
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0 to 0.010
0 to 0.25
Iron (Fe), % 0 to 0.0050
97.7 to 98.9
Magnesium (Mg), % 92.5 to 95.9
0
Manganese (Mn), % 0.1 to 0.7
0.9 to 1.2
Nickel (Ni), % 0 to 0.0020
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0.5 to 1.5
0 to 0.3
Sulfur (S), % 0
0 to 0.025
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0