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EN-MC21210 Magnesium vs. EN 1.1191 Steel

EN-MC21210 magnesium belongs to the magnesium alloys classification, while EN 1.1191 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-MC21210 magnesium and the bottom bar is EN 1.1191 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 48
180 to 200
Elastic (Young's, Tensile) Modulus, GPa 44
190
Elongation at Break, % 14
16 to 17
Fatigue Strength, MPa 70
210 to 290
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
72
Shear Strength, MPa 110
380 to 430
Tensile Strength: Ultimate (UTS), MPa 190
630 to 700
Tensile Strength: Yield (Proof), MPa 90
310 to 440

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Maximum Temperature: Mechanical, °C 100
400
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 570
1420
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 120
48
Thermal Expansion, µm/m-K 27
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
2.1
Density, g/cm3 1.6
7.8
Embodied Carbon, kg CO2/kg material 24
1.4
Embodied Energy, MJ/kg 160
19
Embodied Water, L/kg 980
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
83 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 92
260 to 510
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 72
24
Strength to Weight: Axial, points 32
22 to 25
Strength to Weight: Bending, points 44
21 to 22
Thermal Diffusivity, mm2/s 76
13
Thermal Shock Resistance, points 11
20 to 22

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
0
Carbon (C), % 0
0.42 to 0.5
Chromium (Cr), % 0
0 to 0.4
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0050
97.3 to 99.08
Magnesium (Mg), % 96.3 to 98.3
0
Manganese (Mn), % 0.1 to 0.7
0.5 to 0.8
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 0 to 0.0020
0 to 0.4
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.1
0 to 0.4
Sulfur (S), % 0
0 to 0.035
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0