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EN-MC21210 Magnesium vs. EN 1.7711 Steel

EN-MC21210 magnesium belongs to the magnesium alloys classification, while EN 1.7711 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 1.7711 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 48
210 to 280
Elastic (Young's, Tensile) Modulus, GPa 44
190
Elongation at Break, % 14
16 to 22
Fatigue Strength, MPa 70
290 to 520
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
73
Shear Strength, MPa 110
440 to 570
Tensile Strength: Ultimate (UTS), MPa 190
690 to 930
Tensile Strength: Yield (Proof), MPa 90
400 to 800

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Maximum Temperature: Mechanical, °C 100
430
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
33
Thermal Expansion, µm/m-K 27
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 12
3.0
Density, g/cm3 1.6
7.8
Embodied Carbon, kg CO2/kg material 24
2.3
Embodied Energy, MJ/kg 160
32
Embodied Water, L/kg 980
54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
130 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 92
430 to 1690
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 72
24
Strength to Weight: Axial, points 32
24 to 33
Strength to Weight: Bending, points 44
22 to 27
Thermal Diffusivity, mm2/s 76
8.9
Thermal Shock Resistance, points 11
24 to 32

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
0 to 0.015
Carbon (C), % 0
0.36 to 0.44
Chromium (Cr), % 0
0.9 to 1.2
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0050
96 to 97.5
Magnesium (Mg), % 96.3 to 98.3
0
Manganese (Mn), % 0.1 to 0.7
0.45 to 0.85
Molybdenum (Mo), % 0
0.5 to 0.65
Nickel (Ni), % 0 to 0.0020
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.1
0 to 0.4
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0.25 to 0.35
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0