ASTM B477 Au-Ni-Ag vs. C96800 Copper

ASTM B477 Au-Ni-Ag belongs to the otherwise unclassified metals classification, while C96800 copper belongs to the copper alloys. 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 B477 Au-Ni-Ag and the bottom bar is C96800 copper.

ASTM B477 Gold-Nickel-Silver Electrical Contact Alloy UNS C96800 Nickel-Tin Copper

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		95
Elastic (Young's, Tensile) Modulus, GPa		120

Elongation at Break, %		5.5 to 11
Elongation at Break, %		3.4

Poisson's Ratio		0.41
Poisson's Ratio		0.34

Shear Modulus, GPa		34
Shear Modulus, GPa		46

Tensile Strength: Ultimate (UTS), MPa		310 to 550
Tensile Strength: Ultimate (UTS), MPa		1010

Thermal Properties

Latent Heat of Fusion, J/g		80
Latent Heat of Fusion, J/g		220

Melting Completion (Liquidus), °C		1010
Melting Completion (Liquidus), °C		1120

Melting Onset (Solidus), °C		930
Melting Onset (Solidus), °C		1060

Specific Heat Capacity, J/kg-K		160
Specific Heat Capacity, J/kg-K		390

Thermal Expansion, µm/m-K		15
Thermal Expansion, µm/m-K		17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		14
Electrical Conductivity: Equal Volume, % IACS		10

Electrical Conductivity: Equal Weight (Specific), % IACS		7.5
Electrical Conductivity: Equal Weight (Specific), % IACS		10

Otherwise Unclassified Properties

Density, g/cm³		17
Density, g/cm³		8.9

Common Calculations

Stiffness to Weight: Axial, points		3.1
Stiffness to Weight: Axial, points		7.6

Stiffness to Weight: Bending, points		8.9
Stiffness to Weight: Bending, points		19

Strength to Weight: Axial, points		5.0 to 9.0
Strength to Weight: Axial, points		32

Strength to Weight: Bending, points		6.0 to 8.8
Strength to Weight: Bending, points		25

Thermal Shock Resistance, points		16 to 28
Thermal Shock Resistance, points		35

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		0 to 0.1

Antimony (Sb), %		0
Antimony (Sb), %		0 to 0.020

Copper (Cu), %		0
Copper (Cu), %		87.1 to 90.5

Gold (Au), %		74.2 to 75.8
Gold (Au), %		0

Iron (Fe), %		0
Iron (Fe), %		0 to 0.5

Lead (Pb), %		0
Lead (Pb), %		0 to 0.0050

Manganese (Mn), %		0
Manganese (Mn), %		0.050 to 0.3

Nickel (Ni), %		2.6 to 3.4
Nickel (Ni), %		9.5 to 10.5

Phosphorus (P), %		0
Phosphorus (P), %		0 to 0.0050

Silver (Ag), %		21.4 to 22.6
Silver (Ag), %		0

Sulfur (S), %		0
Sulfur (S), %		0 to 0.0025

Zinc (Zn), %		0
Zinc (Zn), %		0 to 1.0

Residuals, %		0
Residuals, %		0 to 0.5