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Commercially Pure Silver vs. EN-MC21220 Magnesium

Commercially pure silver belongs to the otherwise unclassified metals classification, while EN-MC21220 magnesium belongs to the magnesium alloys. There are 21 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 commercially pure silver and the bottom bar is EN-MC21220 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
45
Elongation at Break, % 1.1 to 29
11
Poisson's Ratio 0.37
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 120 to 190
120
Tensile Strength: Ultimate (UTS), MPa 190 to 340
210

Thermal Properties

Latent Heat of Fusion, J/g 110
350
Melting Completion (Liquidus), °C 960
600
Melting Onset (Solidus), °C 960
540
Specific Heat Capacity, J/kg-K 240
1000
Thermal Conductivity, W/m-K 420
65
Thermal Expansion, µm/m-K 20
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
16
Electrical Conductivity: Equal Weight (Specific), % IACS 87
87

Otherwise Unclassified Properties

Density, g/cm3 10
1.7

Common Calculations

Stiffness to Weight: Axial, points 3.8
15
Stiffness to Weight: Bending, points 13
71
Strength to Weight: Axial, points 4.9 to 8.9
34
Strength to Weight: Bending, points 6.9 to 10
46
Thermal Diffusivity, mm2/s 170
39
Thermal Shock Resistance, points 9.5 to 17
12

Alloy Composition

Aluminum (Al), % 0
4.4 to 5.5
Copper (Cu), % 0
0 to 0.010
Iron (Fe), % 0
0 to 0.0050
Magnesium (Mg), % 0
93.5 to 95.5
Manganese (Mn), % 0
0.1 to 0.6
Nickel (Ni), % 0
0 to 0.0020
Silicon (Si), % 0
0 to 0.1
Silver (Ag), % 99.9 to 100
0
Zinc (Zn), % 0
0 to 0.3
Residuals, % 0
0 to 0.010