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EN-MC21220 Magnesium vs. ASTM B617 Coin Silver

EN-MC21220 magnesium belongs to the magnesium alloys classification, while ASTM B617 coin silver belongs to the otherwise unclassified metals. There are 19 material properties with values for both materials. Properties with values for just one material (12, 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 B617 coin silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
75
Elongation at Break, % 11
1.1 to 22
Poisson's Ratio 0.29
0.37
Shear Modulus, GPa 17
28
Shear Strength, MPa 120
180 to 290
Tensile Strength: Ultimate (UTS), MPa 210
290 to 520

Thermal Properties

Latent Heat of Fusion, J/g 350
120
Melting Completion (Liquidus), °C 600
870
Melting Onset (Solidus), °C 540
780
Specific Heat Capacity, J/kg-K 1000
250
Thermal Expansion, µm/m-K 27
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
83
Electrical Conductivity: Equal Weight (Specific), % IACS 87
72

Otherwise Unclassified Properties

Density, g/cm3 1.7
10

Common Calculations

Stiffness to Weight: Axial, points 15
4.1
Stiffness to Weight: Bending, points 71
14
Strength to Weight: Axial, points 34
7.7 to 14
Strength to Weight: Bending, points 46
9.3 to 14
Thermal Shock Resistance, points 12
14 to 25

Alloy Composition


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Aluminum (Al), % 4.4 to 5.5
0 to 0.0050
Cadmium (Cd), % 0
0 to 0.050
Copper (Cu), % 0 to 0.010
9.0 to 10.4
Iron (Fe), % 0 to 0.0050
0 to 0.050
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 93.5 to 95.5
0
Manganese (Mn), % 0.1 to 0.6
0
Nickel (Ni), % 0 to 0.0020
0 to 0.010
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.1
0
Silver (Ag), % 0
89.6 to 91
Zinc (Zn), % 0 to 0.3
0 to 0.060
Residuals, % 0 to 0.010
0 to 0.060