ASTM B628 Ag-Cu vs. CC140C Copper

ASTM B628 Ag-Cu belongs to the otherwise unclassified metals classification, while CC140C copper belongs to the copper alloys. They have a modest 28% of their average alloy composition in common, which, by itself, doesn't mean much. 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 B628 Ag-Cu and the bottom bar is CC140C copper.

ASTM B628 Silver-Copper Eutectic Electrical Contact Alloy EN CC140C (CuCr1-C) Chromium Copper

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		83
Elastic (Young's, Tensile) Modulus, GPa		120

Elongation at Break, %		1.1 to 17
Elongation at Break, %		11

Poisson's Ratio		0.36
Poisson's Ratio		0.34

Shear Modulus, GPa		31
Shear Modulus, GPa		44

Tensile Strength: Ultimate (UTS), MPa		350 to 760
Tensile Strength: Ultimate (UTS), MPa		340

Thermal Properties

Latent Heat of Fusion, J/g		140
Latent Heat of Fusion, J/g		210

Melting Completion (Liquidus), °C		780
Melting Completion (Liquidus), °C		1100

Melting Onset (Solidus), °C		780
Melting Onset (Solidus), °C		1040

Specific Heat Capacity, J/kg-K		280
Specific Heat Capacity, J/kg-K		390

Thermal Expansion, µm/m-K		19
Thermal Expansion, µm/m-K		17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		84
Electrical Conductivity: Equal Volume, % IACS		77

Electrical Conductivity: Equal Weight (Specific), % IACS		75
Electrical Conductivity: Equal Weight (Specific), % IACS		78

Otherwise Unclassified Properties

Density, g/cm³		10
Density, g/cm³		8.9

Common Calculations

Stiffness to Weight: Axial, points		4.6
Stiffness to Weight: Axial, points		7.3

Stiffness to Weight: Bending, points		14
Stiffness to Weight: Bending, points		18

Strength to Weight: Axial, points		9.5 to 21
Strength to Weight: Axial, points		10

Strength to Weight: Bending, points		11 to 18
Strength to Weight: Bending, points		12

Thermal Shock Resistance, points		16 to 34
Thermal Shock Resistance, points		12

Alloy Composition

Aluminum (Al), %		0 to 0.0050
Aluminum (Al), %		0

Cadmium (Cd), %		0 to 0.050
Cadmium (Cd), %		0

Chromium (Cr), %		0
Chromium (Cr), %		0.4 to 1.2

Copper (Cu), %		26.6 to 29
Copper (Cu), %		98.8 to 99.6

Iron (Fe), %		0 to 0.050
Iron (Fe), %		0

Lead (Pb), %		0 to 0.030
Lead (Pb), %		0

Nickel (Ni), %		0 to 0.010
Nickel (Ni), %		0

Phosphorus (P), %		0 to 0.030
Phosphorus (P), %		0

Silver (Ag), %		71 to 73
Silver (Ag), %		0

Zinc (Zn), %		0 to 0.060
Zinc (Zn), %		0

Residuals, %		0 to 0.21
Residuals, %		0