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ASTM B540 Palladium vs. C71640 Copper-nickel

ASTM B540 palladium belongs to the otherwise unclassified metals classification, while C71640 copper-nickel 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 B540 palladium and the bottom bar is C71640 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
140
Poisson's Ratio 0.38
0.33
Shear Modulus, GPa 39
52
Tensile Strength: Ultimate (UTS), MPa 830 to 1240
490 to 630
Tensile Strength: Yield (Proof), MPa 620 to 1000
190 to 460

Thermal Properties

Latent Heat of Fusion, J/g 140
240
Melting Completion (Liquidus), °C 1220
1180
Melting Onset (Solidus), °C 1020
1120
Specific Heat Capacity, J/kg-K 240
410
Thermal Expansion, µm/m-K 14
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.9 to 5.5
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5 to 3.9
7.1

Otherwise Unclassified Properties

Density, g/cm3 13
8.9

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 1790 to 4660
130 to 750
Stiffness to Weight: Axial, points 4.7
8.7
Stiffness to Weight: Bending, points 12
20
Strength to Weight: Axial, points 18 to 27
15 to 20
Strength to Weight: Bending, points 15 to 20
16 to 18
Thermal Shock Resistance, points 41 to 61
16 to 21

Alloy Composition

Copper (Cu), % 13.5 to 14.5
61.7 to 67.8
Gold (Au), % 9.5 to 10.5
0
Iron (Fe), % 0
1.7 to 2.3
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0
1.5 to 2.5
Nickel (Ni), % 0
29 to 32
Palladium (Pd), % 34 to 36
0
Platinum (Pt), % 9.5 to 10.5
0
Silver (Ag), % 29 to 31
0
Zinc (Zn), % 0.8 to 1.2
0 to 1.0
Residuals, % 0
0 to 0.5