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AWS BAg-1a vs. ASTM B540 Palladium

Both AWS BAg-1a and ASTM B540 palladium are otherwise unclassified metals. They have 45% of their average alloy composition in common. There are 15 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-1a and the bottom bar is ASTM B540 palladium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 77
110
Poisson's Ratio 0.33
0.38
Shear Modulus, GPa 29
39
Tensile Strength: Ultimate (UTS), MPa 180
830 to 1240

Thermal Properties

Latent Heat of Fusion, J/g 120
140
Melting Completion (Liquidus), °C 640
1220
Melting Onset (Solidus), °C 630
1020
Specific Heat Capacity, J/kg-K 280
240
Thermal Expansion, µm/m-K 22
14

Otherwise Unclassified Properties

Density, g/cm3 9.3
13

Common Calculations

Stiffness to Weight: Axial, points 4.6
4.7
Stiffness to Weight: Bending, points 15
12
Strength to Weight: Axial, points 5.4
18 to 27
Strength to Weight: Bending, points 7.6
15 to 20
Thermal Shock Resistance, points 7.5
41 to 61

Alloy Composition


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Cadmium (Cd), % 17 to 19
0
Copper (Cu), % 14.5 to 16.5
13.5 to 14.5
Gold (Au), % 0
9.5 to 10.5
Palladium (Pd), % 0
34 to 36
Platinum (Pt), % 0
9.5 to 10.5
Silver (Ag), % 49 to 51
29 to 31
Zinc (Zn), % 14.5 to 18.5
0.8 to 1.2
Residuals, % 0 to 0.15
0 to 0.3