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3105 Aluminum vs. ASTM B617 Coin Silver

3105 aluminum belongs to the aluminum 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 (13, 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 3105 aluminum and the bottom bar is ASTM B617 coin silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
75
Elongation at Break, % 1.1 to 20
1.1 to 22
Poisson's Ratio 0.33
0.37
Shear Modulus, GPa 26
28
Shear Strength, MPa 77 to 140
180 to 290
Tensile Strength: Ultimate (UTS), MPa 120 to 240
290 to 520

Thermal Properties

Latent Heat of Fusion, J/g 400
120
Melting Completion (Liquidus), °C 660
870
Melting Onset (Solidus), °C 640
780
Specific Heat Capacity, J/kg-K 900
250
Thermal Expansion, µm/m-K 24
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
83
Electrical Conductivity: Equal Weight (Specific), % IACS 140
72

Otherwise Unclassified Properties

Density, g/cm3 2.8
10

Common Calculations

Stiffness to Weight: Axial, points 14
4.1
Stiffness to Weight: Bending, points 50
14
Strength to Weight: Axial, points 12 to 24
7.7 to 14
Strength to Weight: Bending, points 20 to 31
9.3 to 14
Thermal Shock Resistance, points 5.2 to 11
14 to 25

Alloy Composition

Aluminum (Al), % 96 to 99.5
0 to 0.0050
Cadmium (Cd), % 0
0 to 0.050
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0 to 0.3
9.0 to 10.4
Iron (Fe), % 0 to 0.7
0 to 0.050
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 0.2 to 0.8
0
Manganese (Mn), % 0.3 to 0.8
0
Nickel (Ni), % 0
0 to 0.010
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.6
0
Silver (Ag), % 0
89.6 to 91
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.4
0 to 0.060
Residuals, % 0
0 to 0.060

Comparable Variants