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EN-MC95310 Magnesium vs. Grey Cast Iron

EN-MC95310 magnesium belongs to the magnesium alloys classification, while grey cast iron belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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-MC95310 magnesium and the bottom bar is grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
160 to 300
Elastic (Young's, Tensile) Modulus, GPa 45
180
Elongation at Break, % 2.2
9.6
Fatigue Strength, MPa 110
69 to 170
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
69
Shear Strength, MPa 160
180 to 610
Tensile Strength: Ultimate (UTS), MPa 280
160 to 450
Tensile Strength: Yield (Proof), MPa 190
98 to 290

Thermal Properties

Latent Heat of Fusion, J/g 330
280
Melting Completion (Liquidus), °C 650
1380
Melting Onset (Solidus), °C 540
1180
Specific Heat Capacity, J/kg-K 960
490
Thermal Conductivity, W/m-K 51
46
Thermal Expansion, µm/m-K 25
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 50
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 34
1.9
Density, g/cm3 1.9
7.5
Embodied Carbon, kg CO2/kg material 29
1.5
Embodied Energy, MJ/kg 260
21
Embodied Water, L/kg 900
44

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
13 to 37
Resilience: Unit (Modulus of Resilience), kJ/m3 420
27 to 240
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 61
25
Strength to Weight: Axial, points 40
5.8 to 17
Strength to Weight: Bending, points 49
8.7 to 17
Thermal Diffusivity, mm2/s 28
13
Thermal Shock Resistance, points 18
6.0 to 17

Alloy Composition


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Carbon (C), % 0
3.1 to 3.4
Copper (Cu), % 0 to 0.030
0
Iron (Fe), % 0 to 0.010
92.1 to 93.9
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 88.9 to 93.4
0
Manganese (Mn), % 0 to 0.15
0.5 to 0.7
Nickel (Ni), % 0 to 0.0050
0
Phosphorus (P), % 0
0 to 0.9
Silicon (Si), % 0 to 0.010
2.5 to 2.8
Sulfur (S), % 0
0 to 0.15
Unspecified Rare Earths, % 1.5 to 4.0
0
Yttrium (Y), % 4.8 to 5.5
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0