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EN-MC65220 Magnesium vs. Grade TDSiCrV Steel

EN-MC65220 magnesium belongs to the magnesium alloys classification, while grade TDSiCrV steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, 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 grade TDSiCrV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
630
Elastic (Young's, Tensile) Modulus, GPa 44
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
80
Tensile Strength: Ultimate (UTS), MPa 270
2100

Thermal Properties

Latent Heat of Fusion, J/g 340
270
Maximum Temperature: Mechanical, °C 160
420
Melting Completion (Liquidus), °C 610
1440
Melting Onset (Solidus), °C 550
1400
Specific Heat Capacity, J/kg-K 980
480
Thermal Conductivity, W/m-K 110
47
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 120
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 80
2.3
Density, g/cm3 1.9
7.7
Embodied Carbon, kg CO2/kg material 27
1.9
Embodied Energy, MJ/kg 210
26

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 62
25
Strength to Weight: Axial, points 40
75
Strength to Weight: Bending, points 49
47
Thermal Diffusivity, mm2/s 61
13
Thermal Shock Resistance, points 17
63

Alloy Composition


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Carbon (C), % 0
0.5 to 0.7
Chromium (Cr), % 0
0.5 to 1.0
Copper (Cu), % 0.050 to 0.1
0 to 0.1
Iron (Fe), % 0 to 0.010
96.1 to 97.8
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
0.4 to 0.9
Nickel (Ni), % 0 to 0.0050
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.010
1.2 to 1.7
Silver (Ag), % 1.3 to 1.7
0
Sulfur (S), % 0
0 to 0.020
Unspecified Rare Earths, % 1.5 to 3.0
0
Vanadium (V), % 0
0.1 to 0.25
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0