ASTM B477 Au-Ni-Ag vs. Nickel 689

ASTM B477 Au-Ni-Ag belongs to the otherwise unclassified metals classification, while nickel 689 belongs to the nickel alloys. There are 17 material properties with values for both materials. Properties with values for just one material (14, 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 nickel 689.

ASTM B477 Gold-Nickel-Silver Electrical Contact Alloy Nickel Alloy 689 (N07252)

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		95
Elastic (Young's, Tensile) Modulus, GPa		210

Elongation at Break, %		5.5 to 11
Elongation at Break, %		23

Poisson's Ratio		0.41
Poisson's Ratio		0.29

Shear Modulus, GPa		34
Shear Modulus, GPa		80

Shear Strength, MPa		190 to 320
Shear Strength, MPa		790

Tensile Strength: Ultimate (UTS), MPa		310 to 550
Tensile Strength: Ultimate (UTS), MPa		1250

Thermal Properties

Latent Heat of Fusion, J/g		80
Latent Heat of Fusion, J/g		330

Melting Completion (Liquidus), °C		1010
Melting Completion (Liquidus), °C		1440

Melting Onset (Solidus), °C		930
Melting Onset (Solidus), °C		1390

Specific Heat Capacity, J/kg-K		160
Specific Heat Capacity, J/kg-K		450

Thermal Expansion, µm/m-K		15
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

Density, g/cm³		17
Density, g/cm³		8.5

Common Calculations

Stiffness to Weight: Axial, points		3.1
Stiffness to Weight: Axial, points		14

Stiffness to Weight: Bending, points		8.9
Stiffness to Weight: Bending, points		23

Strength to Weight: Axial, points		5.0 to 9.0
Strength to Weight: Axial, points		41

Strength to Weight: Bending, points		6.0 to 8.8
Strength to Weight: Bending, points		30

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

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		0.75 to 1.3

Boron (B), %		0
Boron (B), %		0.0030 to 0.010

Carbon (C), %		0
Carbon (C), %		0.1 to 0.2

Chromium (Cr), %		0
Chromium (Cr), %		18 to 20

Cobalt (Co), %		0
Cobalt (Co), %		9.0 to 11

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

Iron (Fe), %		0
Iron (Fe), %		0 to 5.0

Manganese (Mn), %		0
Manganese (Mn), %		0 to 0.5

Molybdenum (Mo), %		0
Molybdenum (Mo), %		9.0 to 10.5

Nickel (Ni), %		2.6 to 3.4
Nickel (Ni), %		48.3 to 60.9

Phosphorus (P), %		0
Phosphorus (P), %		0 to 0.015

Silicon (Si), %		0
Silicon (Si), %		0 to 0.5

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

Sulfur (S), %		0
Sulfur (S), %		0 to 0.015

Titanium (Ti), %		0
Titanium (Ti), %		2.3 to 2.8

Residuals, %		0 to 0.3
Residuals, %		0