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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.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 95
210
Elongation at Break, % 5.5 to 11
23
Poisson's Ratio 0.41
0.29
Shear Modulus, GPa 34
80
Shear Strength, MPa 190 to 320
790
Tensile Strength: Ultimate (UTS), MPa 310 to 550
1250

Thermal Properties

Latent Heat of Fusion, J/g 80
330
Melting Completion (Liquidus), °C 1010
1440
Melting Onset (Solidus), °C 930
1390
Specific Heat Capacity, J/kg-K 160
450
Thermal Expansion, µm/m-K 15
12

Otherwise Unclassified Properties

Density, g/cm3 17
8.5

Common Calculations

Stiffness to Weight: Axial, points 3.1
14
Stiffness to Weight: Bending, points 8.9
23
Strength to Weight: Axial, points 5.0 to 9.0
41
Strength to Weight: Bending, points 6.0 to 8.8
30
Thermal Shock Resistance, points 16 to 28
35

Alloy Composition


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Aluminum (Al), % 0
0.75 to 1.3
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0
0.1 to 0.2
Chromium (Cr), % 0
18 to 20
Cobalt (Co), % 0
9.0 to 11
Gold (Au), % 74.2 to 75.8
0
Iron (Fe), % 0
0 to 5.0
Manganese (Mn), % 0
0 to 0.5
Molybdenum (Mo), % 0
9.0 to 10.5
Nickel (Ni), % 2.6 to 3.4
48.3 to 60.9
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.5
Silver (Ag), % 21.4 to 22.6
0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
2.3 to 2.8
Residuals, % 0 to 0.3
0