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C81500 Copper vs. ASTM B617 Coin Silver

C81500 copper belongs to the copper alloys classification, while ASTM B617 coin silver belongs to the otherwise unclassified metals. 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 C81500 copper and the bottom bar is ASTM B617 coin silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
75
Elongation at Break, % 17
1.1 to 22
Poisson's Ratio 0.34
0.37
Shear Modulus, GPa 44
28
Tensile Strength: Ultimate (UTS), MPa 350
290 to 520

Thermal Properties

Latent Heat of Fusion, J/g 210
120
Melting Completion (Liquidus), °C 1090
870
Melting Onset (Solidus), °C 1080
780
Specific Heat Capacity, J/kg-K 390
250
Thermal Expansion, µm/m-K 17
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 82
83
Electrical Conductivity: Equal Weight (Specific), % IACS 83
72

Otherwise Unclassified Properties

Density, g/cm3 8.9
10

Common Calculations

Stiffness to Weight: Axial, points 7.3
4.1
Stiffness to Weight: Bending, points 18
14
Strength to Weight: Axial, points 11
7.7 to 14
Strength to Weight: Bending, points 12
9.3 to 14
Thermal Shock Resistance, points 12
14 to 25

Alloy Composition

Aluminum (Al), % 0 to 0.1
0 to 0.0050
Cadmium (Cd), % 0
0 to 0.050
Chromium (Cr), % 0.4 to 1.5
0
Copper (Cu), % 97.4 to 99.6
9.0 to 10.4
Iron (Fe), % 0 to 0.1
0 to 0.050
Lead (Pb), % 0 to 0.020
0 to 0.030
Nickel (Ni), % 0
0 to 0.010
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.15
0
Silver (Ag), % 0
89.6 to 91
Tin (Sn), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
0 to 0.060
Residuals, % 0
0 to 0.060