ASTM B477 Au-Ni-Ag vs. C63600 Bronze

ASTM B477 Au-Ni-Ag belongs to the otherwise unclassified metals classification, while C63600 bronze belongs to the copper alloys. There are 19 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 C63600 bronze.

ASTM B477 Gold-Nickel-Silver Electrical Contact Alloy UNS C63600 Aluminum-Silicon Bronze

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		95
Elastic (Young's, Tensile) Modulus, GPa		110

Elongation at Break, %		5.5 to 11
Elongation at Break, %		30 to 66

Poisson's Ratio		0.41
Poisson's Ratio		0.34

Shear Modulus, GPa		34
Shear Modulus, GPa		42

Shear Strength, MPa		190 to 320
Shear Strength, MPa		320 to 360

Tensile Strength: Ultimate (UTS), MPa		310 to 550
Tensile Strength: Ultimate (UTS), MPa		410 to 540

Thermal Properties

Latent Heat of Fusion, J/g		80
Latent Heat of Fusion, J/g		230

Melting Completion (Liquidus), °C		1010
Melting Completion (Liquidus), °C		1030

Melting Onset (Solidus), °C		930
Melting Onset (Solidus), °C		980

Specific Heat Capacity, J/kg-K		160
Specific Heat Capacity, J/kg-K		410

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		12

Electrical Conductivity: Equal Weight (Specific), % IACS		7.5
Electrical Conductivity: Equal Weight (Specific), % IACS		13

Otherwise Unclassified Properties

Density, g/cm³		17
Density, g/cm³		8.6

Common Calculations

Stiffness to Weight: Axial, points		3.1
Stiffness to Weight: Axial, points		7.3

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		13 to 18

Strength to Weight: Bending, points		6.0 to 8.8
Strength to Weight: Bending, points		14 to 17

Thermal Shock Resistance, points		16 to 28
Thermal Shock Resistance, points		15 to 20

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		3.0 to 4.0

Arsenic (As), %		0
Arsenic (As), %		0 to 0.15

Copper (Cu), %		0
Copper (Cu), %		93 to 96.3

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

Iron (Fe), %		0
Iron (Fe), %		0 to 0.15

Lead (Pb), %		0
Lead (Pb), %		0 to 0.050

Nickel (Ni), %		2.6 to 3.4
Nickel (Ni), %		0 to 0.15

Silicon (Si), %		0
Silicon (Si), %		0.7 to 1.3

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

Tin (Sn), %		0
Tin (Sn), %		0 to 0.2

Zinc (Zn), %		0
Zinc (Zn), %		0 to 0.5

Residuals, %		0
Residuals, %		0 to 0.5