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EN-MC32110 Magnesium vs. ASTM B685 Alloy

EN-MC32110 magnesium belongs to the magnesium alloys classification, while ASTM B685 alloy belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (14, 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-MC32110 magnesium and the bottom bar is ASTM B685 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 49
120
Poisson's Ratio 0.29
0.37
Shear Modulus, GPa 19
43
Tensile Strength: Ultimate (UTS), MPa 220
660 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 330
180
Melting Completion (Liquidus), °C 600
1230
Melting Onset (Solidus), °C 500
1200
Specific Heat Capacity, J/kg-K 950
300
Thermal Expansion, µm/m-K 26
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
5.0
Electrical Conductivity: Equal Weight (Specific), % IACS 140
4.1

Otherwise Unclassified Properties

Density, g/cm3 2.1
11

Common Calculations

Stiffness to Weight: Axial, points 13
6.1
Stiffness to Weight: Bending, points 58
15
Strength to Weight: Axial, points 29
17 to 27
Strength to Weight: Bending, points 38
16 to 21
Thermal Shock Resistance, points 12
28 to 46

Alloy Composition


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Aluminum (Al), % 0 to 0.2
0 to 0.0050
Cadmium (Cd), % 0
0 to 0.050
Copper (Cu), % 2.4 to 3.0
39.5 to 40.5
Iron (Fe), % 0 to 0.050
0 to 0.050
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 89.3 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0
Nickel (Ni), % 0 to 0.010
0
Palladium (Pd), % 0
59 to 60.5
Silicon (Si), % 0 to 0.2
0
Silver (Ag), % 0
0 to 0.1
Zinc (Zn), % 5.5 to 6.5
0 to 0.060
Residuals, % 0 to 0.010
0 to 0.2