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EN-MC21210 Magnesium vs. EN 1.1127 Steel

EN-MC21210 magnesium belongs to the magnesium alloys classification, while EN 1.1127 steel belongs to the iron alloys. 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 1.1127 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 48
190 to 230
Elastic (Young's, Tensile) Modulus, GPa 44
190
Elongation at Break, % 14
14 to 25
Fatigue Strength, MPa 70
280 to 370
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
73
Shear Strength, MPa 110
420 to 480
Tensile Strength: Ultimate (UTS), MPa 190
660 to 790
Tensile Strength: Yield (Proof), MPa 90
410 to 580

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
1410
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 120
49
Thermal Expansion, µm/m-K 27
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 12
2.1
Density, g/cm3 1.6
7.8
Embodied Carbon, kg CO2/kg material 24
1.5
Embodied Energy, MJ/kg 160
19
Embodied Water, L/kg 980
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
90 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 92
440 to 880
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 72
24
Strength to Weight: Axial, points 32
23 to 28
Strength to Weight: Bending, points 44
22 to 24
Thermal Diffusivity, mm2/s 76
13
Thermal Shock Resistance, points 11
21 to 25

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
0
Carbon (C), % 0
0.34 to 0.42
Chromium (Cr), % 0
0 to 0.4
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0050
96.6 to 98.1
Magnesium (Mg), % 96.3 to 98.3
0
Manganese (Mn), % 0.1 to 0.7
1.4 to 1.7
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
0.15 to 0.35
Sulfur (S), % 0
0 to 0.035
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0