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Commercially Pure Palladium vs. EN 1.4903 Stainless Steel

Commercially pure palladium belongs to the otherwise unclassified metals classification, while EN 1.4903 stainless steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is commercially pure palladium and the bottom bar is EN 1.4903 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 1.1 to 11
20 to 21
Poisson's Ratio 0.39
0.28
Shear Modulus, GPa 43
75
Shear Strength, MPa 120 to 200
420
Tensile Strength: Ultimate (UTS), MPa 200 to 380
670 to 680

Thermal Properties

Latent Heat of Fusion, J/g 160
270
Melting Completion (Liquidus), °C 1550
1460
Melting Onset (Solidus), °C 1550
1420
Specific Heat Capacity, J/kg-K 240
470
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 12
4.0

Otherwise Unclassified Properties

Density, g/cm3 12
7.8

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
24
Strength to Weight: Bending, points 6.2 to 9.7
22
Thermal Shock Resistance, points 9.8 to 19
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0
0.080 to 0.12
Chromium (Cr), % 0
8.0 to 9.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 0
87.1 to 90.5
Manganese (Mn), % 0
0.3 to 0.6
Molybdenum (Mo), % 0
0.85 to 1.1
Nickel (Ni), % 0
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Palladium (Pd), % 99.8 to 100
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Vanadium (V), % 0
0.18 to 0.25
Residuals, % 0 to 0.2
0