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ASTM B617 Coin Silver vs. CC767S Brass

ASTM B617 coin silver belongs to the otherwise unclassified metals classification, while CC767S brass belongs to the copper alloys. There are 18 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is ASTM B617 coin silver and the bottom bar is CC767S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
110
Elongation at Break, % 1.1 to 22
34
Poisson's Ratio 0.37
0.31
Shear Modulus, GPa 28
40
Tensile Strength: Ultimate (UTS), MPa 290 to 520
430

Thermal Properties

Latent Heat of Fusion, J/g 120
180
Melting Completion (Liquidus), °C 870
840
Melting Onset (Solidus), °C 780
790
Specific Heat Capacity, J/kg-K 250
390
Thermal Expansion, µm/m-K 19
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 83
32
Electrical Conductivity: Equal Weight (Specific), % IACS 72
36

Otherwise Unclassified Properties

Density, g/cm3 10
8.0

Common Calculations

Stiffness to Weight: Axial, points 4.1
7.3
Stiffness to Weight: Bending, points 14
20
Strength to Weight: Axial, points 7.7 to 14
15
Strength to Weight: Bending, points 9.3 to 14
16
Thermal Shock Resistance, points 14 to 25
14

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0.1 to 0.8
Cadmium (Cd), % 0 to 0.050
0
Copper (Cu), % 9.0 to 10.4
58 to 64
Iron (Fe), % 0 to 0.050
0 to 0.5
Lead (Pb), % 0 to 0.030
0 to 0.1
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.010
0 to 1.0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0
0 to 0.2
Silver (Ag), % 89.6 to 91
0
Tin (Sn), % 0
0 to 0.1
Zinc (Zn), % 0 to 0.060
32.8 to 41.9
Residuals, % 0 to 0.060
0