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EN 1.4581 Stainless Steel vs. Commercially Pure Palladium

EN 1.4581 stainless steel belongs to the iron alloys classification, while commercially pure palladium belongs to the otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.

For each property being compared, the top bar is EN 1.4581 stainless steel and the bottom bar is commercially pure palladium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 28
1.1 to 11
Poisson's Ratio 0.28
0.39
Shear Modulus, GPa 78
43
Tensile Strength: Ultimate (UTS), MPa 510
200 to 380

Thermal Properties

Latent Heat of Fusion, J/g 300
160
Melting Completion (Liquidus), °C 1440
1550
Melting Onset (Solidus), °C 1400
1550
Specific Heat Capacity, J/kg-K 470
240
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
16
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
12

Otherwise Unclassified Properties

Density, g/cm3 7.8
12

Common Calculations

Stiffness to Weight: Axial, points 14
5.6
Stiffness to Weight: Bending, points 25
14
Strength to Weight: Axial, points 18
4.5 to 8.8
Strength to Weight: Bending, points 18
6.2 to 9.7
Thermal Shock Resistance, points 12
9.8 to 19

Alloy Composition

Carbon (C), % 0 to 0.070
0
Chromium (Cr), % 18 to 20
0
Iron (Fe), % 61.4 to 71
0
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 2.0 to 2.5
0
Nickel (Ni), % 9.0 to 12
0
Niobium (Nb), % 0 to 1.0
0
Palladium (Pd), % 0
99.8 to 100
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
0
Sulfur (S), % 0 to 0.030
0
Residuals, % 0
0 to 0.2