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ASTM B617 Coin Silver vs. CR011A Copper

ASTM B617 coin silver belongs to the otherwise unclassified metals classification, while CR011A copper belongs to the copper alloys. There are 18 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is ASTM B617 coin silver and the bottom bar is CR011A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
120
Elongation at Break, % 1.1 to 22
15
Poisson's Ratio 0.37
0.34
Shear Modulus, GPa 28
43
Tensile Strength: Ultimate (UTS), MPa 290 to 520
220

Thermal Properties

Latent Heat of Fusion, J/g 120
210
Melting Completion (Liquidus), °C 870
1090
Melting Onset (Solidus), °C 780
1040
Specific Heat Capacity, J/kg-K 250
390
Thermal Expansion, µm/m-K 19
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 83
100
Electrical Conductivity: Equal Weight (Specific), % IACS 72
100

Otherwise Unclassified Properties

Density, g/cm3 10
9.0

Common Calculations

Stiffness to Weight: Axial, points 4.1
7.2
Stiffness to Weight: Bending, points 14
18
Strength to Weight: Axial, points 7.7 to 14
6.8
Strength to Weight: Bending, points 9.3 to 14
9.0
Thermal Shock Resistance, points 14 to 25
7.8

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Bismuth (Bi), % 0
0 to 0.00050
Cadmium (Cd), % 0 to 0.050
0
Copper (Cu), % 9.0 to 10.4
99.88 to 99.97
Iron (Fe), % 0 to 0.050
0
Lead (Pb), % 0 to 0.030
0
Nickel (Ni), % 0 to 0.010
0
Oxygen (O), % 0
0 to 0.040
Phosphorus (P), % 0 to 0.020
0
Silver (Ag), % 89.6 to 91
0.030 to 0.050
Zinc (Zn), % 0 to 0.060
0
Residuals, % 0 to 0.060
0