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EN-MC21320 Magnesium vs. EN 1.0456 Steel

EN-MC21320 magnesium belongs to the magnesium alloys classification, while EN 1.0456 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 1.0456 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 68
120 to 130
Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 7.5
24 to 26
Fatigue Strength, MPa 95
210 to 220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
73
Shear Strength, MPa 130
270 to 280
Tensile Strength: Ultimate (UTS), MPa 230
420 to 450
Tensile Strength: Yield (Proof), MPa 140
290 to 300

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
48
Thermal Expansion, µm/m-K 26
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 91
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 12
2.2
Density, g/cm3 1.6
7.8
Embodied Carbon, kg CO2/kg material 23
1.5
Embodied Energy, MJ/kg 160
20
Embodied Water, L/kg 980
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
93 to 99
Resilience: Unit (Modulus of Resilience), kJ/m3 200
220 to 230
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 72
24
Strength to Weight: Axial, points 38
15 to 16
Strength to Weight: Bending, points 50
16 to 17
Thermal Diffusivity, mm2/s 40
13
Thermal Shock Resistance, points 13
13 to 14

Alloy Composition


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Aluminum (Al), % 3.5 to 5.0
0.020 to 0.060
Carbon (C), % 0
0 to 0.2
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0 to 0.010
0 to 0.35
Iron (Fe), % 0 to 0.0050
96.7 to 99.48
Magnesium (Mg), % 92.5 to 95.9
0
Manganese (Mn), % 0.1 to 0.7
0.5 to 1.4
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 0 to 0.0020
0 to 0.3
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0.5 to 1.5
0 to 0.4
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0