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EN-MC21220 Magnesium vs. ASTM B522 Class II

EN-MC21220 magnesium belongs to the magnesium alloys classification, while ASTM B522 class II belongs to the otherwise unclassified metals. There are 22 material properties with values for both materials. Properties with values for just one material (10, 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-MC21220 magnesium and the bottom bar is ASTM B522 class II.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
96
Elongation at Break, % 11
1.1 to 28
Poisson's Ratio 0.29
0.41
Shear Modulus, GPa 17
34
Shear Strength, MPa 120
180 to 280
Tensile Strength: Ultimate (UTS), MPa 210
280 to 490
Tensile Strength: Yield (Proof), MPa 120
120 to 210

Thermal Properties

Latent Heat of Fusion, J/g 350
77
Melting Completion (Liquidus), °C 600
1030
Melting Onset (Solidus), °C 540
1030
Specific Heat Capacity, J/kg-K 1000
160
Thermal Expansion, µm/m-K 27
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
11
Electrical Conductivity: Equal Weight (Specific), % IACS 87
5.7

Otherwise Unclassified Properties

Density, g/cm3 1.7
17

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
4.4 to 63
Resilience: Unit (Modulus of Resilience), kJ/m3 160
75 to 230
Stiffness to Weight: Axial, points 15
3.1
Stiffness to Weight: Bending, points 71
8.9
Strength to Weight: Axial, points 34
4.4 to 7.8
Strength to Weight: Bending, points 46
5.5 to 8.0
Thermal Shock Resistance, points 12
13 to 24

Alloy Composition


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Aluminum (Al), % 4.4 to 5.5
0
Copper (Cu), % 0 to 0.010
0
Gold (Au), % 0
68.5 to 69.5
Iron (Fe), % 0 to 0.0050
0
Magnesium (Mg), % 93.5 to 95.5
0
Manganese (Mn), % 0.1 to 0.6
0
Nickel (Ni), % 0 to 0.0020
0
Platinum (Pt), % 0
5.5 to 6.5
Silicon (Si), % 0 to 0.1
0
Silver (Ag), % 0
24.5 to 25.5
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.010
0 to 0.26