ASTM B522 Class I vs. 60Pd-40Ag Alloy
Both ASTM B522 class I and 60Pd-40Ag alloy are otherwise unclassified metals. They have a modest 25% of their average alloy composition in common, which, by itself, doesn't mean much. There are 20 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is ASTM B522 class I and the bottom bar is 60Pd-40Ag alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 96 | |
| 100 |
| Elongation at Break, % | 1.1 to 29 | |
| 1.1 to 28 |
| Knoop Hardness | 88 to 150 | |
| 110 to 220 |
| Poisson's Ratio | 0.41 | |
| 0.38 |
| Shear Modulus, GPa | 34 | |
| 37 |
| Shear Strength, MPa | 180 to 280 | |
| 220 to 350 |
| Tensile Strength: Ultimate (UTS), MPa | 280 to 490 | |
| 340 to 720 |
Thermal Properties
| Latent Heat of Fusion, J/g | 77 | |
| 140 |
| Melting Completion (Liquidus), °C | 1030 | |
| 1360 |
| Melting Onset (Solidus), °C | 1030 | |
| 1310 |
| Specific Heat Capacity, J/kg-K | 160 | |
| 240 |
| Thermal Expansion, µm/m-K | 15 | |
| 15 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 11 | |
| 4.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 5.8 | |
| 3.2 |
Otherwise Unclassified Properties
| Density, g/cm3 | 17 | |
| 11 |
Common Calculations
| Stiffness to Weight: Axial, points | 3.1 | |
| 4.9 |
| Stiffness to Weight: Bending, points | 8.9 | |
| 14 |
| Strength to Weight: Axial, points | 4.4 to 7.8 | |
| 8.4 to 18 |
| Strength to Weight: Bending, points | 5.5 to 8.0 | |
| 9.6 to 16 |
| Thermal Shock Resistance, points | 13 to 24 | |
| 16 to 34 |
Alloy Composition
| Copper (Cu), % | 0 | |
| 0 to 0.1 |
| Gold (Au), % | 68 to 70 | |
| 0 |
| Palladium (Pd), % | 0 | |
| 59.5 to 60.9 |
| Platinum (Pt), % | 5.0 to 7.0 | |
| 0 |
| Silver (Ag), % | 23.5 to 26.5 | |
| 39.1 to 40.5 |
| Residuals, % | 0 | |
| 0 to 0.3 |