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ASTM B540 Palladium vs. EN 2.4964 Cobalt

ASTM B540 palladium belongs to the otherwise unclassified metals classification, while EN 2.4964 cobalt belongs to the cobalt alloys. There are 22 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ASTM B540 palladium and the bottom bar is EN 2.4964 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220
Elongation at Break, % 1.1 to 14
40
Fatigue Strength, MPa 350
220
Poisson's Ratio 0.38
0.29
Shear Modulus, GPa 39
86
Tensile Strength: Ultimate (UTS), MPa 830 to 1240
960
Tensile Strength: Yield (Proof), MPa 620 to 1000
390

Thermal Properties

Latent Heat of Fusion, J/g 140
290
Melting Completion (Liquidus), °C 1220
1630
Melting Onset (Solidus), °C 1020
1550
Specific Heat Capacity, J/kg-K 240
400
Thermal Expansion, µm/m-K 14
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.9 to 5.5
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5 to 3.9
1.8

Otherwise Unclassified Properties

Density, g/cm3 13
9.6

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 100
310
Resilience: Unit (Modulus of Resilience), kJ/m3 1790 to 4660
340
Stiffness to Weight: Axial, points 4.7
13
Stiffness to Weight: Bending, points 12
21
Strength to Weight: Axial, points 18 to 27
28
Strength to Weight: Bending, points 15 to 20
23
Thermal Shock Resistance, points 41 to 61
25

Alloy Composition

Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
46.4 to 58
Copper (Cu), % 13.5 to 14.5
0
Gold (Au), % 9.5 to 10.5
0
Iron (Fe), % 0
0 to 3.0
Manganese (Mn), % 0
0 to 2.0
Nickel (Ni), % 0
9.0 to 11
Palladium (Pd), % 34 to 36
0
Phosphorus (P), % 0
0 to 0.020
Platinum (Pt), % 9.5 to 10.5
0
Silicon (Si), % 0
0 to 0.4
Silver (Ag), % 29 to 31
0
Sulfur (S), % 0
0 to 0.015
Tungsten (W), % 0
14 to 16
Zinc (Zn), % 0.8 to 1.2
0
Residuals, % 0 to 0.3
0