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ASTM B477 Au-Ni-Ag vs. 60Pd-40Ag Alloy

Both ASTM B477 Au-Ni-Ag and 60Pd-40Ag alloy are otherwise unclassified metals. They have a modest 22% of their average alloy composition in common, which, by itself, doesn't mean much. There are 20 material properties with values for both materials. Properties with values for just one material (2, 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 60Pd-40Ag alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 95
100
Elongation at Break, % 5.5 to 11
1.1 to 28
Knoop Hardness 100 to 190
110 to 220
Poisson's Ratio 0.41
0.38
Shear Modulus, GPa 34
37
Shear Strength, MPa 190 to 320
220 to 350
Tensile Strength: Ultimate (UTS), MPa 310 to 550
340 to 720

Thermal Properties

Latent Heat of Fusion, J/g 80
140
Melting Completion (Liquidus), °C 1010
1360
Melting Onset (Solidus), °C 930
1310
Specific Heat Capacity, J/kg-K 160
240
Thermal Expansion, µm/m-K 15
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
4.1
Electrical Conductivity: Equal Weight (Specific), % IACS 7.5
3.2

Otherwise Unclassified Properties

Density, g/cm3 17
11

Common Calculations

Stiffness to Weight: Axial, points 3.1
4.9
Stiffness to Weight: Bending, points 8.9
14
Strength to Weight: Axial, points 5.0 to 9.0
8.4 to 18
Strength to Weight: Bending, points 6.0 to 8.8
9.6 to 16
Thermal Shock Resistance, points 16 to 28
16 to 34

Alloy Composition

Copper (Cu), % 0
0 to 0.1
Gold (Au), % 74.2 to 75.8
0
Nickel (Ni), % 2.6 to 3.4
0
Palladium (Pd), % 0
59.5 to 60.9
Silver (Ag), % 21.4 to 22.6
39.1 to 40.5
Residuals, % 0
0 to 0.3