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ASTM B540 Palladium vs. SAE-AISI 1140 Steel

ASTM B540 palladium belongs to the otherwise unclassified metals classification, while SAE-AISI 1140 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is ASTM B540 palladium and the bottom bar is SAE-AISI 1140 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 1.1 to 14
14 to 18
Fatigue Strength, MPa 350
230 to 370
Poisson's Ratio 0.38
0.29
Shear Modulus, GPa 39
72
Shear Strength, MPa 500 to 700
370 to 420
Tensile Strength: Ultimate (UTS), MPa 830 to 1240
600 to 700
Tensile Strength: Yield (Proof), MPa 620 to 1000
340 to 570

Thermal Properties

Latent Heat of Fusion, J/g 140
250
Melting Completion (Liquidus), °C 1220
1460
Melting Onset (Solidus), °C 1020
1420
Specific Heat Capacity, J/kg-K 240
470
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.9 to 5.5
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5 to 3.9
8.1

Otherwise Unclassified Properties

Density, g/cm3 13
7.8

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 100
89 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 1790 to 4660
310 to 870
Stiffness to Weight: Axial, points 4.7
13
Stiffness to Weight: Bending, points 12
24
Strength to Weight: Axial, points 18 to 27
21 to 25
Strength to Weight: Bending, points 15 to 20
20 to 22
Thermal Shock Resistance, points 41 to 61
18 to 21

Alloy Composition

Carbon (C), % 0
0.37 to 0.44
Copper (Cu), % 13.5 to 14.5
0
Gold (Au), % 9.5 to 10.5
0
Iron (Fe), % 0
98.4 to 98.9
Manganese (Mn), % 0
0.7 to 1.0
Palladium (Pd), % 34 to 36
0
Phosphorus (P), % 0
0 to 0.040
Platinum (Pt), % 9.5 to 10.5
0
Silver (Ag), % 29 to 31
0
Sulfur (S), % 0
0.080 to 0.13
Zinc (Zn), % 0.8 to 1.2
0
Residuals, % 0 to 0.3
0

Comparable Variants