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ASTM Grade LC9 Steel vs. EN-MC65220 Magnesium

ASTM grade LC9 steel belongs to the iron alloys classification, while EN-MC65220 magnesium belongs to the magnesium alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, 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 ASTM grade LC9 steel and the bottom bar is EN-MC65220 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
80
Elastic (Young's, Tensile) Modulus, GPa 190
44
Elongation at Break, % 22
2.2
Fatigue Strength, MPa 420
110
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
17
Tensile Strength: Ultimate (UTS), MPa 660
270
Tensile Strength: Yield (Proof), MPa 590
200

Thermal Properties

Latent Heat of Fusion, J/g 260
340
Maximum Temperature: Mechanical, °C 430
160
Melting Completion (Liquidus), °C 1450
610
Melting Onset (Solidus), °C 1410
550
Specific Heat Capacity, J/kg-K 470
980
Thermal Expansion, µm/m-K 13
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
25
Electrical Conductivity: Equal Weight (Specific), % IACS 10
120

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
80
Density, g/cm3 7.9
1.9
Embodied Carbon, kg CO2/kg material 2.3
27
Embodied Energy, MJ/kg 31
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
5.5
Resilience: Unit (Modulus of Resilience), kJ/m3 920
450
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
62
Strength to Weight: Axial, points 23
40
Strength to Weight: Bending, points 21
49
Thermal Shock Resistance, points 20
17

Alloy Composition

Carbon (C), % 0 to 0.13
0
Chromium (Cr), % 0 to 0.5
0
Copper (Cu), % 0 to 0.3
0.050 to 0.1
Iron (Fe), % 87.4 to 91.5
0 to 0.010
Magnesium (Mg), % 0
93.8 to 96.8
Manganese (Mn), % 0 to 0.9
0 to 0.15
Molybdenum (Mo), % 0 to 0.2
0
Nickel (Ni), % 8.5 to 10
0 to 0.0050
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.45
0 to 0.010
Silver (Ag), % 0
1.3 to 1.7
Sulfur (S), % 0 to 0.045
0
Unspecified Rare Earths, % 0
1.5 to 3.0
Vanadium (V), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 0.2
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.010