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ASTM B540 Palladium vs. EN 1.4451 Stainless Steel

ASTM B540 palladium belongs to the otherwise unclassified metals classification, while EN 1.4451 stainless steel belongs to the iron alloys. There are 22 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 EN 1.4451 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 1.1 to 14
25
Fatigue Strength, MPa 350
370
Poisson's Ratio 0.38
0.27
Shear Modulus, GPa 39
80
Tensile Strength: Ultimate (UTS), MPa 830 to 1240
750
Tensile Strength: Yield (Proof), MPa 620 to 1000
540

Thermal Properties

Latent Heat of Fusion, J/g 140
300
Melting Completion (Liquidus), °C 1220
1430
Melting Onset (Solidus), °C 1020
1380
Specific Heat Capacity, J/kg-K 240
480
Thermal Expansion, µm/m-K 14
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.9 to 5.5
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5 to 3.9
2.5

Otherwise Unclassified Properties

Density, g/cm3 13
7.8

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 100
170
Resilience: Unit (Modulus of Resilience), kJ/m3 1790 to 4660
710
Stiffness to Weight: Axial, points 4.7
14
Stiffness to Weight: Bending, points 12
25
Strength to Weight: Axial, points 18 to 27
27
Strength to Weight: Bending, points 15 to 20
23
Thermal Shock Resistance, points 41 to 61
16

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
25 to 27
Copper (Cu), % 13.5 to 14.5
2.8 to 3.5
Gold (Au), % 9.5 to 10.5
0
Iron (Fe), % 0
56.2 to 64.6
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0
5.0 to 7.0
Nitrogen (N), % 0
0.12 to 0.22
Palladium (Pd), % 34 to 36
0
Phosphorus (P), % 0
0 to 0.035
Platinum (Pt), % 9.5 to 10.5
0
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 29 to 31
0
Sulfur (S), % 0
0 to 0.025
Zinc (Zn), % 0.8 to 1.2
0
Residuals, % 0 to 0.3
0