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Commercially Pure Silver vs. EN AC-42200 Aluminum

Commercially pure silver belongs to the otherwise unclassified metals classification, while EN AC-42200 aluminum belongs to the aluminum alloys. There are 20 material properties with values for both materials. Properties with values for just one material (11, 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 AC-42200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
70
Elongation at Break, % 1.1 to 29
3.0 to 6.7
Poisson's Ratio 0.37
0.33
Shear Modulus, GPa 26
26
Tensile Strength: Ultimate (UTS), MPa 190 to 340
320

Thermal Properties

Latent Heat of Fusion, J/g 110
500
Melting Completion (Liquidus), °C 960
610
Melting Onset (Solidus), °C 960
600
Specific Heat Capacity, J/kg-K 240
910
Thermal Conductivity, W/m-K 420
150
Thermal Expansion, µm/m-K 20
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
40
Electrical Conductivity: Equal Weight (Specific), % IACS 87
140

Otherwise Unclassified Properties

Density, g/cm3 10
2.6

Common Calculations

Stiffness to Weight: Axial, points 3.8
15
Stiffness to Weight: Bending, points 13
53
Strength to Weight: Axial, points 4.9 to 8.9
34 to 35
Strength to Weight: Bending, points 6.9 to 10
40 to 41
Thermal Diffusivity, mm2/s 170
66
Thermal Shock Resistance, points 9.5 to 17
15

Alloy Composition

Aluminum (Al), % 0
91 to 93.1
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 0
0 to 0.19
Magnesium (Mg), % 0
0.45 to 0.7
Manganese (Mn), % 0
0 to 0.1
Silicon (Si), % 0
6.5 to 7.5
Silver (Ag), % 99.9 to 100
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.070
Residuals, % 0
0 to 0.1