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EN 1.0446 Cast Steel vs. EN-MC65220 Magnesium

EN 1.0446 cast steel belongs to the iron alloys classification, while EN-MC65220 magnesium belongs to the magnesium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 1.0446 cast steel and the bottom bar is EN-MC65220 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
44
Elongation at Break, % 25
2.2
Fatigue Strength, MPa 200
110
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
17
Tensile Strength: Ultimate (UTS), MPa 530
270
Tensile Strength: Yield (Proof), MPa 270
200

Thermal Properties

Latent Heat of Fusion, J/g 250
340
Maximum Temperature: Mechanical, °C 400
160
Melting Completion (Liquidus), °C 1470
610
Melting Onset (Solidus), °C 1430
550
Specific Heat Capacity, J/kg-K 470
980
Thermal Conductivity, W/m-K 53
110
Thermal Expansion, µm/m-K 12
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
25
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
120

Otherwise Unclassified Properties

Base Metal Price, % relative 1.7
80
Density, g/cm3 7.9
1.9
Embodied Carbon, kg CO2/kg material 1.4
27
Embodied Energy, MJ/kg 18
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
5.5
Resilience: Unit (Modulus of Resilience), kJ/m3 190
450
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
62
Strength to Weight: Axial, points 19
40
Strength to Weight: Bending, points 18
49
Thermal Diffusivity, mm2/s 14
61
Thermal Shock Resistance, points 17
17

Alloy Composition

Copper (Cu), % 0
0.050 to 0.1
Iron (Fe), % 99.935 to 100
0 to 0.010
Magnesium (Mg), % 0
93.8 to 96.8
Manganese (Mn), % 0
0 to 0.15
Nickel (Ni), % 0
0 to 0.0050
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0
0 to 0.010
Silver (Ag), % 0
1.3 to 1.7
Sulfur (S), % 0 to 0.030
0
Unspecified Rare Earths, % 0
1.5 to 3.0
Zinc (Zn), % 0
0 to 0.2
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.010