C18600 Copper vs. ASTM B563 Pd-Ag-Cu

C18600 copper belongs to the copper alloys classification, while ASTM B563 Pd-Ag-Cu belongs to the otherwise unclassified metals. There are 19 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 C18600 copper and the bottom bar is ASTM B563 Pd-Ag-Cu.

UNS C18600 Chromium Copper ASTM B563 Palladium-Silver-Copper Electrical Contact Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		120
Elastic (Young's, Tensile) Modulus, GPa		100

Elongation at Break, %		8.0 to 11
Elongation at Break, %		7.0 to 17

Poisson's Ratio		0.34
Poisson's Ratio		0.37

Shear Modulus, GPa		44
Shear Modulus, GPa		37

Shear Strength, MPa		310 to 340
Shear Strength, MPa		470 to 690

Tensile Strength: Ultimate (UTS), MPa		520 to 580
Tensile Strength: Ultimate (UTS), MPa		760 to 1170

Thermal Properties

Latent Heat of Fusion, J/g		210
Latent Heat of Fusion, J/g		150

Melting Completion (Liquidus), °C		1090
Melting Completion (Liquidus), °C		1180

Melting Onset (Solidus), °C		1070
Melting Onset (Solidus), °C		1030

Specific Heat Capacity, J/kg-K		390
Specific Heat Capacity, J/kg-K		260

Thermal Expansion, µm/m-K		17
Thermal Expansion, µm/m-K		14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		70
Electrical Conductivity: Equal Volume, % IACS		5.6 to 6.7

Electrical Conductivity: Equal Weight (Specific), % IACS		71
Electrical Conductivity: Equal Weight (Specific), % IACS		4.6 to 5.5

Otherwise Unclassified Properties

Density, g/cm³		8.9
Density, g/cm³		11

Common Calculations

Stiffness to Weight: Axial, points		7.3
Stiffness to Weight: Axial, points		5.2

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

Strength to Weight: Axial, points		16 to 18
Strength to Weight: Axial, points		19 to 30

Strength to Weight: Bending, points		16 to 17
Strength to Weight: Bending, points		17 to 22

Thermal Shock Resistance, points		19 to 20
Thermal Shock Resistance, points		39 to 61

Alloy Composition

Chromium (Cr), %		0.1 to 1.0
Chromium (Cr), %		0

Cobalt (Co), %		0 to 0.1
Cobalt (Co), %		0

Copper (Cu), %		96.5 to 99.55
Copper (Cu), %		15.5 to 16.5

Iron (Fe), %		0.25 to 0.8
Iron (Fe), %		0

Nickel (Ni), %		0 to 0.25
Nickel (Ni), %		0.8 to 1.2

Palladium (Pd), %		0
Palladium (Pd), %		43 to 45

Platinum (Pt), %		0
Platinum (Pt), %		0.8 to 1.2

Silver (Ag), %		0
Silver (Ag), %		37 to 39

Titanium (Ti), %		0.050 to 0.5
Titanium (Ti), %		0

Zirconium (Zr), %		0.050 to 0.4
Zirconium (Zr), %		0

Residuals, %		0
Residuals, %		0 to 0.4