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ASTM B540 Palladium vs. EN AC-51500 Aluminum

ASTM B540 palladium belongs to the otherwise unclassified metals classification, while EN AC-51500 aluminum belongs to the aluminum alloys. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is ASTM B540 palladium and the bottom bar is EN AC-51500 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
68
Elongation at Break, % 1.1 to 14
5.6
Fatigue Strength, MPa 350
120
Poisson's Ratio 0.38
0.33
Shear Modulus, GPa 39
26
Tensile Strength: Ultimate (UTS), MPa 830 to 1240
280
Tensile Strength: Yield (Proof), MPa 620 to 1000
160

Thermal Properties

Latent Heat of Fusion, J/g 140
430
Melting Completion (Liquidus), °C 1220
630
Melting Onset (Solidus), °C 1020
590
Specific Heat Capacity, J/kg-K 240
910
Thermal Expansion, µm/m-K 14
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.9 to 5.5
26
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5 to 3.9
88

Otherwise Unclassified Properties

Density, g/cm3 13
2.6

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 100
13
Resilience: Unit (Modulus of Resilience), kJ/m3 1790 to 4660
190
Stiffness to Weight: Axial, points 4.7
14
Stiffness to Weight: Bending, points 12
52
Strength to Weight: Axial, points 18 to 27
29
Strength to Weight: Bending, points 15 to 20
36
Thermal Shock Resistance, points 41 to 61
13

Alloy Composition

Aluminum (Al), % 0
89.8 to 93.1
Copper (Cu), % 13.5 to 14.5
0 to 0.050
Gold (Au), % 9.5 to 10.5
0
Iron (Fe), % 0
0 to 0.25
Magnesium (Mg), % 0
4.7 to 6.0
Manganese (Mn), % 0
0.4 to 0.8
Palladium (Pd), % 34 to 36
0
Platinum (Pt), % 9.5 to 10.5
0
Silicon (Si), % 0
1.8 to 2.6
Silver (Ag), % 29 to 31
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0.8 to 1.2
0 to 0.070
Residuals, % 0
0 to 0.15