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EN-MC65220 Magnesium vs. ACI-ASTM CF16Fa Steel

EN-MC65220 magnesium belongs to the magnesium alloys classification, while ACI-ASTM CF16Fa 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-MC65220 magnesium and the bottom bar is ACI-ASTM CF16Fa steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
160
Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 2.2
28
Fatigue Strength, MPa 110
170
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
77
Tensile Strength: Ultimate (UTS), MPa 270
540
Tensile Strength: Yield (Proof), MPa 200
230

Thermal Properties

Latent Heat of Fusion, J/g 340
300
Maximum Temperature: Mechanical, °C 160
980
Melting Completion (Liquidus), °C 610
1420
Melting Onset (Solidus), °C 550
1370
Specific Heat Capacity, J/kg-K 980
480
Thermal Conductivity, W/m-K 110
16
Thermal Expansion, µm/m-K 26
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 80
17
Density, g/cm3 1.9
7.8
Embodied Carbon, kg CO2/kg material 27
3.3
Embodied Energy, MJ/kg 210
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
120
Resilience: Unit (Modulus of Resilience), kJ/m3 450
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 62
25
Strength to Weight: Axial, points 40
19
Strength to Weight: Bending, points 49
19
Thermal Diffusivity, mm2/s 61
4.2
Thermal Shock Resistance, points 17
12

Alloy Composition


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Carbon (C), % 0
0 to 0.16
Chromium (Cr), % 0
18 to 21
Copper (Cu), % 0.050 to 0.1
0
Iron (Fe), % 0 to 0.010
62.1 to 72.4
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
0 to 1.5
Molybdenum (Mo), % 0
0.4 to 0.8
Nickel (Ni), % 0 to 0.0050
9.0 to 12
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.010
0 to 2.0
Silver (Ag), % 1.3 to 1.7
0
Sulfur (S), % 0
0.2 to 0.4
Unspecified Rare Earths, % 1.5 to 3.0
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0