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EN-MC95310 Magnesium vs. ACI-ASTM CD6MN Steel

EN-MC95310 magnesium belongs to the magnesium alloys classification, while ACI-ASTM CD6MN steel belongs to the iron alloys. There are 29 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-MC95310 magnesium and the bottom bar is ACI-ASTM CD6MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 2.2
28
Fatigue Strength, MPa 110
370
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 17
80
Tensile Strength: Ultimate (UTS), MPa 280
730
Tensile Strength: Yield (Proof), MPa 190
510

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 650
1440
Melting Onset (Solidus), °C 540
1390
Specific Heat Capacity, J/kg-K 960
480
Thermal Conductivity, W/m-K 51
16
Thermal Expansion, µm/m-K 25
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 50
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 34
17
Density, g/cm3 1.9
7.7
Embodied Carbon, kg CO2/kg material 29
3.4
Embodied Energy, MJ/kg 260
48
Embodied Water, L/kg 900
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
180
Resilience: Unit (Modulus of Resilience), kJ/m3 420
650
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 61
25
Strength to Weight: Axial, points 40
26
Strength to Weight: Bending, points 49
23
Thermal Diffusivity, mm2/s 28
4.4
Thermal Shock Resistance, points 18
20

Alloy Composition


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Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
24 to 27
Copper (Cu), % 0 to 0.030
0
Iron (Fe), % 0 to 0.010
62.1 to 70.1
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 88.9 to 93.4
0
Manganese (Mn), % 0 to 0.15
0 to 1.0
Molybdenum (Mo), % 0
1.8 to 2.5
Nickel (Ni), % 0 to 0.0050
4.0 to 6.0
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.010
0 to 1.0
Sulfur (S), % 0
0 to 0.040
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