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C19800 Copper vs. ASTM B685 Alloy

C19800 copper belongs to the copper alloys classification, while ASTM B685 alloy belongs to the otherwise unclassified metals. They have 40% of their average alloy composition in common. There are 17 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 C19800 copper and the bottom bar is ASTM B685 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Poisson's Ratio 0.34
0.37
Shear Modulus, GPa 43
43
Tensile Strength: Ultimate (UTS), MPa 430 to 550
660 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 210
180
Melting Completion (Liquidus), °C 1070
1230
Melting Onset (Solidus), °C 1050
1200
Specific Heat Capacity, J/kg-K 390
300
Thermal Expansion, µm/m-K 18
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 61
5.0
Electrical Conductivity: Equal Weight (Specific), % IACS 62
4.1

Otherwise Unclassified Properties

Density, g/cm3 8.9
11

Common Calculations

Stiffness to Weight: Axial, points 7.2
6.1
Stiffness to Weight: Bending, points 18
15
Strength to Weight: Axial, points 14 to 17
17 to 27
Strength to Weight: Bending, points 14 to 17
16 to 21
Thermal Shock Resistance, points 15 to 20
28 to 46

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Cadmium (Cd), % 0
0 to 0.050
Copper (Cu), % 95.7 to 99.47
39.5 to 40.5
Iron (Fe), % 0.020 to 0.5
0 to 0.050
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 0.1 to 1.0
0
Palladium (Pd), % 0
59 to 60.5
Phosphorus (P), % 0.010 to 0.1
0
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0.1 to 1.0
0
Zinc (Zn), % 0.3 to 1.5
0 to 0.060
Residuals, % 0
0 to 0.2