ASTM B596 Au-Cu vs. CR003A Copper

ASTM B596 Au-Cu belongs to the otherwise unclassified metals classification, while CR003A 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 B596 Au-Cu and the bottom bar is CR003A copper.

ASTM B596 Gold-Copper Electrical Contact Alloy EN CR003A (Cu-ETP1) Electrolytic Tough Pitch Copper

Metric UnitsUS Customary Units

Mechanical Properties

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

Elongation at Break, %		4.3 to 17
Elongation at Break, %		15

Poisson's Ratio		0.41
Poisson's Ratio		0.34

Shear Modulus, GPa		36
Shear Modulus, GPa		43

Tensile Strength: Ultimate (UTS), MPa		450 to 620
Tensile Strength: Ultimate (UTS), MPa		230

Thermal Properties

Latent Heat of Fusion, J/g		77
Latent Heat of Fusion, J/g		210

Melting Completion (Liquidus), °C		1060
Melting Completion (Liquidus), °C		1090

Melting Onset (Solidus), °C		930
Melting Onset (Solidus), °C		1040

Specific Heat Capacity, J/kg-K		150
Specific Heat Capacity, J/kg-K		390

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		14
Electrical Conductivity: Equal Volume, % IACS		100

Electrical Conductivity: Equal Weight (Specific), % IACS		6.7
Electrical Conductivity: Equal Weight (Specific), % IACS		100

Otherwise Unclassified Properties

Density, g/cm³		18
Density, g/cm³		9.0

Common Calculations

Stiffness to Weight: Axial, points		3.1
Stiffness to Weight: Axial, points		7.2

Stiffness to Weight: Bending, points		8.5
Stiffness to Weight: Bending, points		18

Strength to Weight: Axial, points		6.8 to 9.4
Strength to Weight: Axial, points		7.1

Strength to Weight: Bending, points		7.1 to 8.8
Strength to Weight: Bending, points		9.3

Thermal Shock Resistance, points		22 to 30
Thermal Shock Resistance, points		8.1

Alloy Composition

Antimony (Sb), %		0
Antimony (Sb), %		0 to 0.00040

Arsenic (As), %		0
Arsenic (As), %		0 to 0.00050

Bismuth (Bi), %		0
Bismuth (Bi), %		0 to 0.00020

Copper (Cu), %		9.0 to 11
Copper (Cu), %		99.954 to 100

Gold (Au), %		89 to 91
Gold (Au), %		0

Iron (Fe), %		0
Iron (Fe), %		0 to 0.0010

Lead (Pb), %		0
Lead (Pb), %		0 to 0.00050

Oxygen (O), %		0
Oxygen (O), %		0 to 0.040

Selenium (Se), %		0
Selenium (Se), %		0 to 0.00020

Silver (Ag), %		0
Silver (Ag), %		0 to 0.0025

Sulfur (S), %		0
Sulfur (S), %		0 to 0.0015

Tellurium (Te), %		0
Tellurium (Te), %		0 to 0.00020

Residuals, %		0 to 0.4
Residuals, %		0