ASTM B522 Class II vs. 85-silver 15-nickel
Both ASTM B522 class II and 85-silver 15-nickel 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 17 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is ASTM B522 class II and the bottom bar is 85-silver 15-nickel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 96 | |
| 88 |
| Poisson's Ratio | 0.41 | |
| 0.36 |
| Shear Modulus, GPa | 34 | |
| 32 |
| Tensile Strength: Ultimate (UTS), MPa | 280 to 490 | |
| 260 to 470 |
Thermal Properties
| Latent Heat of Fusion, J/g | 77 | |
| 140 |
| Melting Completion (Liquidus), °C | 1030 | |
| 870 |
| Melting Onset (Solidus), °C | 1030 | |
| 960 |
| Specific Heat Capacity, J/kg-K | 160 | |
| 270 |
| Thermal Expansion, µm/m-K | 15 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 11 | |
| 86 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 5.7 | |
| 75 |
Otherwise Unclassified Properties
| Density, g/cm3 | 17 | |
| 10 |
Common Calculations
| Stiffness to Weight: Axial, points | 3.1 | |
| 4.8 |
| Stiffness to Weight: Bending, points | 8.9 | |
| 14 |
| Strength to Weight: Axial, points | 4.4 to 7.8 | |
| 7.1 to 13 |
| Strength to Weight: Bending, points | 5.5 to 8.0 | |
| 8.9 to 13 |
| Thermal Shock Resistance, points | 13 to 24 | |
| 12 to 21 |
Alloy Composition
| Gold (Au), % | 68.5 to 69.5 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 13.8 to 16 |
| Platinum (Pt), % | 5.5 to 6.5 | |
| 0 |
| Silver (Ag), % | 24.5 to 25.5 | |
| 84 to 86 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.2 |