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ASTM B563 Pd-Ag-Cu vs. AZ63A Magnesium

ASTM B563 Pd-Ag-Cu belongs to the otherwise unclassified metals classification, while AZ63A magnesium belongs to the magnesium alloys. There are 19 material properties with values for both materials. Properties with values for just one material (13, 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 B563 Pd-Ag-Cu and the bottom bar is AZ63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
46
Elongation at Break, % 7.0 to 17
2.2 to 8.0
Poisson's Ratio 0.37
0.29
Shear Modulus, GPa 37
18
Shear Strength, MPa 470 to 690
110 to 160
Tensile Strength: Ultimate (UTS), MPa 760 to 1170
190 to 270

Thermal Properties

Latent Heat of Fusion, J/g 150
350
Melting Completion (Liquidus), °C 1180
610
Melting Onset (Solidus), °C 1030
450
Specific Heat Capacity, J/kg-K 260
980
Thermal Expansion, µm/m-K 14
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 5.6 to 6.7
12 to 15
Electrical Conductivity: Equal Weight (Specific), % IACS 4.6 to 5.5
59 to 74

Otherwise Unclassified Properties

Density, g/cm3 11
1.8

Common Calculations

Stiffness to Weight: Axial, points 5.2
14
Stiffness to Weight: Bending, points 14
66
Strength to Weight: Axial, points 19 to 30
29 to 41
Strength to Weight: Bending, points 17 to 22
40 to 51
Thermal Shock Resistance, points 39 to 61
11 to 16

Alloy Composition

Aluminum (Al), % 0
5.3 to 6.7
Copper (Cu), % 15.5 to 16.5
0 to 0.25
Magnesium (Mg), % 0
88.6 to 92.1
Manganese (Mn), % 0
0.15 to 0.35
Nickel (Ni), % 0.8 to 1.2
0 to 0.010
Palladium (Pd), % 43 to 45
0
Platinum (Pt), % 0.8 to 1.2
0
Silicon (Si), % 0
0 to 0.3
Silver (Ag), % 37 to 39
0
Zinc (Zn), % 0
2.5 to 3.5
Residuals, % 0
0 to 0.3