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5051A Aluminum vs. ASTM B540 Palladium

5051A aluminum belongs to the aluminum alloys classification, while ASTM B540 palladium belongs to the otherwise unclassified metals. There are 23 material properties with values for both materials. Properties with values for just one material (8, 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 5051A aluminum and the bottom bar is ASTM B540 palladium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
110
Elongation at Break, % 18 to 21
1.1 to 14
Fatigue Strength, MPa 51 to 61
350
Poisson's Ratio 0.33
0.38
Shear Modulus, GPa 26
39
Shear Strength, MPa 110
500 to 700
Tensile Strength: Ultimate (UTS), MPa 170
830 to 1240
Tensile Strength: Yield (Proof), MPa 56
620 to 1000

Thermal Properties

Latent Heat of Fusion, J/g 400
140
Melting Completion (Liquidus), °C 640
1220
Melting Onset (Solidus), °C 610
1020
Specific Heat Capacity, J/kg-K 900
240
Thermal Expansion, µm/m-K 23
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
4.9 to 5.5
Electrical Conductivity: Equal Weight (Specific), % IACS 130
3.5 to 3.9

Otherwise Unclassified Properties

Density, g/cm3 2.7
13

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 27
13 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 23
1790 to 4660
Stiffness to Weight: Axial, points 14
4.7
Stiffness to Weight: Bending, points 50
12
Strength to Weight: Axial, points 17 to 18
18 to 27
Strength to Weight: Bending, points 25
15 to 20
Thermal Shock Resistance, points 7.6
41 to 61

Alloy Composition

Aluminum (Al), % 96.1 to 98.6
0
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.050
13.5 to 14.5
Gold (Au), % 0
9.5 to 10.5
Iron (Fe), % 0 to 0.45
0
Magnesium (Mg), % 1.4 to 2.1
0
Manganese (Mn), % 0 to 0.25
0
Palladium (Pd), % 0
34 to 36
Platinum (Pt), % 0
9.5 to 10.5
Silicon (Si), % 0 to 0.3
0
Silver (Ag), % 0
29 to 31
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.2
0.8 to 1.2
Residuals, % 0
0 to 0.3