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ASTM B628 Ag-Cu vs. ASTM B540 Palladium

Both ASTM B628 Ag-Cu and ASTM B540 palladium are otherwise unclassified metals. They have 44% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM B628 Ag-Cu and the bottom bar is ASTM B540 palladium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 83
110
Elongation at Break, % 1.1 to 17
1.1 to 14
Poisson's Ratio 0.36
0.38
Shear Modulus, GPa 31
39
Shear Strength, MPa 210 to 430
500 to 700
Tensile Strength: Ultimate (UTS), MPa 350 to 760
830 to 1240

Thermal Properties

Latent Heat of Fusion, J/g 140
140
Melting Completion (Liquidus), °C 780
1220
Melting Onset (Solidus), °C 780
1020
Specific Heat Capacity, J/kg-K 280
240
Thermal Expansion, µm/m-K 19
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 84
4.9 to 5.5
Electrical Conductivity: Equal Weight (Specific), % IACS 75
3.5 to 3.9

Otherwise Unclassified Properties

Density, g/cm3 10
13

Common Calculations

Stiffness to Weight: Axial, points 4.6
4.7
Stiffness to Weight: Bending, points 14
12
Strength to Weight: Axial, points 9.5 to 21
18 to 27
Strength to Weight: Bending, points 11 to 18
15 to 20
Thermal Shock Resistance, points 16 to 34
41 to 61

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Cadmium (Cd), % 0 to 0.050
0
Copper (Cu), % 26.6 to 29
13.5 to 14.5
Gold (Au), % 0
9.5 to 10.5
Iron (Fe), % 0 to 0.050
0
Lead (Pb), % 0 to 0.030
0
Nickel (Ni), % 0 to 0.010
0
Palladium (Pd), % 0
34 to 36
Phosphorus (P), % 0 to 0.030
0
Platinum (Pt), % 0
9.5 to 10.5
Silver (Ag), % 71 to 73
29 to 31
Zinc (Zn), % 0 to 0.060
0.8 to 1.2
Residuals, % 0
0 to 0.3