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ASTM B617 Coin Silver vs. 6101 Aluminum

ASTM B617 coin silver belongs to the otherwise unclassified metals classification, while 6101 aluminum belongs to the aluminum alloys. There are 14 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 ASTM B617 coin silver and the bottom bar is 6101 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
68
Elongation at Break, % 1.1 to 22
10 to 25
Poisson's Ratio 0.37
0.33
Shear Modulus, GPa 28
26

Thermal Properties

Latent Heat of Fusion, J/g 120
400
Melting Completion (Liquidus), °C 870
650
Melting Onset (Solidus), °C 780
620
Specific Heat Capacity, J/kg-K 250
900
Thermal Expansion, µm/m-K 19
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 83
57 to 60
Electrical Conductivity: Equal Weight (Specific), % IACS 72
190 to 200

Otherwise Unclassified Properties

Density, g/cm3 10
2.7

Common Calculations

Stiffness to Weight: Axial, points 4.1
14
Stiffness to Weight: Bending, points 14
50

Alloy Composition

Aluminum (Al), % 0 to 0.0050
97.6 to 99.4
Boron (B), % 0
0 to 0.060
Cadmium (Cd), % 0 to 0.050
0
Chromium (Cr), % 0
0 to 0.030
Copper (Cu), % 9.0 to 10.4
0 to 0.1
Iron (Fe), % 0 to 0.050
0 to 0.5
Lead (Pb), % 0 to 0.030
0
Magnesium (Mg), % 0
0.35 to 0.8
Manganese (Mn), % 0
0 to 0.030
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0
0.3 to 0.7
Silver (Ag), % 89.6 to 91
0
Zinc (Zn), % 0 to 0.060
0 to 0.1
Residuals, % 0
0 to 0.1