ASTM B522 Class II vs. AWS BVAu-2
Both ASTM B522 class II and AWS BVAu-2 are otherwise unclassified metals. They have 69% of their average alloy composition in common. There are 15 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is ASTM B522 class II and the bottom bar is AWS BVAu-2.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 96 | |
| 100 |
| Poisson's Ratio | 0.41 | |
| 0.4 |
| Shear Modulus, GPa | 34 | |
| 36 |
| Tensile Strength: Ultimate (UTS), MPa | 280 to 490 | |
| 150 |
Thermal Properties
| Latent Heat of Fusion, J/g | 77 | |
| 92 |
| Melting Completion (Liquidus), °C | 1030 | |
| 890 |
| Melting Onset (Solidus), °C | 1030 | |
| 890 |
| Specific Heat Capacity, J/kg-K | 160 | |
| 180 |
| Thermal Expansion, µm/m-K | 15 | |
| 15 |
Otherwise Unclassified Properties
| Density, g/cm3 | 17 | |
| 17 |
Common Calculations
| Stiffness to Weight: Axial, points | 3.1 | |
| 3.3 |
| Stiffness to Weight: Bending, points | 8.9 | |
| 9.1 |
| Strength to Weight: Axial, points | 4.4 to 7.8 | |
| 2.4 |
| Strength to Weight: Bending, points | 5.5 to 8.0 | |
| 3.6 |
| Thermal Shock Resistance, points | 13 to 24 | |
| 7.1 |
Alloy Composition
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| Cadmium (Cd), % | 0 | |
| 0 to 0.0010 |
| Carbon (C), % | 0 | |
| 0 to 0.0050 |
| Copper (Cu), % | 0 | |
| 19.5 to 20.5 |
| Gold (Au), % | 68.5 to 69.5 | |
| 79.5 to 80.5 |
| Lead (Pb), % | 0 | |
| 0 to 0.0020 |
| Phosphorus (P), % | 0 | |
| 0 to 0.0020 |
| Platinum (Pt), % | 5.5 to 6.5 | |
| 0 |
| Silver (Ag), % | 24.5 to 25.5 | |
| 0 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0 to 0.0010 |
| Residuals, % | 0 to 0.26 | |
| 0 |