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AZ61A Magnesium vs. ASTM B540 Palladium

AZ61A magnesium belongs to the magnesium 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 (9, 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 AZ61A magnesium and the bottom bar is ASTM B540 palladium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 11
1.1 to 14
Fatigue Strength, MPa 130
350
Poisson's Ratio 0.29
0.38
Shear Modulus, GPa 17
39
Shear Strength, MPa 150
500 to 700
Tensile Strength: Ultimate (UTS), MPa 280
830 to 1240
Tensile Strength: Yield (Proof), MPa 170
620 to 1000

Thermal Properties

Latent Heat of Fusion, J/g 350
140
Melting Completion (Liquidus), °C 600
1220
Melting Onset (Solidus), °C 530
1020
Specific Heat Capacity, J/kg-K 990
240
Thermal Expansion, µm/m-K 27
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
4.9 to 5.5
Electrical Conductivity: Equal Weight (Specific), % IACS 62
3.5 to 3.9

Otherwise Unclassified Properties

Density, g/cm3 1.7
13

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
13 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 310
1790 to 4660
Stiffness to Weight: Axial, points 15
4.7
Stiffness to Weight: Bending, points 69
12
Strength to Weight: Axial, points 46
18 to 27
Strength to Weight: Bending, points 56
15 to 20
Thermal Shock Resistance, points 17
41 to 61

Alloy Composition

Aluminum (Al), % 5.5 to 7.2
0
Copper (Cu), % 0 to 0.050
13.5 to 14.5
Gold (Au), % 0
9.5 to 10.5
Iron (Fe), % 0 to 0.0050
0
Magnesium (Mg), % 90.3 to 93.9
0
Manganese (Mn), % 0.15 to 0.5
0
Nickel (Ni), % 0 to 0.0050
0
Palladium (Pd), % 0
34 to 36
Platinum (Pt), % 0
9.5 to 10.5
Silicon (Si), % 0 to 0.1
0
Silver (Ag), % 0
29 to 31
Zinc (Zn), % 0.4 to 1.5
0.8 to 1.2
Residuals, % 0
0 to 0.3