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Commercially Pure Palladium vs. S44330 Stainless Steel

Commercially pure palladium belongs to the otherwise unclassified metals classification, while S44330 stainless steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is commercially pure palladium and the bottom bar is S44330 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 1.1 to 11
25
Poisson's Ratio 0.39
0.27
Shear Modulus, GPa 43
78
Shear Strength, MPa 120 to 200
280
Tensile Strength: Ultimate (UTS), MPa 200 to 380
440

Thermal Properties

Latent Heat of Fusion, J/g 160
290
Melting Completion (Liquidus), °C 1550
1440
Melting Onset (Solidus), °C 1550
1390
Specific Heat Capacity, J/kg-K 240
480
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 12
3.1

Otherwise Unclassified Properties

Density, g/cm3 12
7.7

Common Calculations

Stiffness to Weight: Axial, points 5.6
14
Stiffness to Weight: Bending, points 14
25
Strength to Weight: Axial, points 4.5 to 8.8
16
Strength to Weight: Bending, points 6.2 to 9.7
17
Thermal Shock Resistance, points 9.8 to 19
16

Alloy Composition

Carbon (C), % 0
0 to 0.025
Chromium (Cr), % 0
20 to 23
Copper (Cu), % 0
0.3 to 0.8
Iron (Fe), % 0
72.5 to 79.7
Manganese (Mn), % 0
0 to 1.0
Niobium (Nb), % 0
0 to 0.8
Nitrogen (N), % 0
0 to 0.025
Palladium (Pd), % 99.8 to 100
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0
0 to 0.8
Residuals, % 0 to 0.2
0