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ASTM B563 Pd-Ag-Cu vs. Type 4 Niobium

Both ASTM B563 Pd-Ag-Cu and Type 4 niobium are otherwise unclassified metals. There are 14 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is ASTM B563 Pd-Ag-Cu and the bottom bar is Type 4 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 7.0 to 17
23
Poisson's Ratio 0.37
0.4
Shear Modulus, GPa 37
38
Tensile Strength: Ultimate (UTS), MPa 760 to 1170
220

Thermal Properties

Latent Heat of Fusion, J/g 150
310
Specific Heat Capacity, J/kg-K 260
270
Thermal Expansion, µm/m-K 14
7.3

Otherwise Unclassified Properties

Density, g/cm3 11
8.6

Common Calculations

Stiffness to Weight: Axial, points 5.2
6.8
Stiffness to Weight: Bending, points 14
18
Strength to Weight: Axial, points 19 to 30
7.2
Strength to Weight: Bending, points 17 to 22
9.5
Thermal Shock Resistance, points 39 to 61
21

Alloy Composition


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Carbon (C), % 0
0 to 0.010
Copper (Cu), % 15.5 to 16.5
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0
0 to 0.010
Molybdenum (Mo), % 0
0 to 0.050
Nickel (Ni), % 0.8 to 1.2
0 to 0.0050
Niobium (Nb), % 0
98.1 to 99.2
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.025
Palladium (Pd), % 43 to 45
0
Platinum (Pt), % 0.8 to 1.2
0
Silicon (Si), % 0
0 to 0.0050
Silver (Ag), % 37 to 39
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
0 to 0.020
Tungsten (W), % 0
0 to 0.050
Zirconium (Zr), % 0
0.8 to 1.2
Residuals, % 0 to 0.4
0