ASTM B628 Ag-Cu vs. AWS E33-31
ASTM B628 Ag-Cu belongs to the otherwise unclassified metals classification, while AWS E33-31 belongs to the iron alloys. There are 16 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is ASTM B628 Ag-Cu and the bottom bar is AWS E33-31.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 83 | |
| 210 |
| Elongation at Break, % | 1.1 to 17 | |
| 29 |
| Poisson's Ratio | 0.36 | |
| 0.27 |
| Shear Modulus, GPa | 31 | |
| 81 |
| Tensile Strength: Ultimate (UTS), MPa | 350 to 760 | |
| 810 |
Thermal Properties
| Latent Heat of Fusion, J/g | 140 | |
| 320 |
| Melting Completion (Liquidus), °C | 780 | |
| 1380 |
| Melting Onset (Solidus), °C | 780 | |
| 1330 |
| Specific Heat Capacity, J/kg-K | 280 | |
| 480 |
| Thermal Expansion, µm/m-K | 19 | |
| 14 |
Otherwise Unclassified Properties
| Density, g/cm3 | 10 | |
| 7.9 |
Common Calculations
| Stiffness to Weight: Axial, points | 4.6 | |
| 14 |
| Stiffness to Weight: Bending, points | 14 | |
| 25 |
| Strength to Weight: Axial, points | 9.5 to 21 | |
| 28 |
| Strength to Weight: Bending, points | 11 to 18 | |
| 24 |
| Thermal Shock Resistance, points | 16 to 34 | |
| 19 |
Alloy Composition
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| Aluminum (Al), % | 0 to 0.0050 | |
| 0 |
| Cadmium (Cd), % | 0 to 0.050 | |
| 0 |
| Carbon (C), % | 0 | |
| 0 to 0.030 |
| Chromium (Cr), % | 0 | |
| 31 to 35 |
| Copper (Cu), % | 26.6 to 29 | |
| 0.4 to 0.8 |
| Iron (Fe), % | 0 to 0.050 | |
| 24.7 to 34.8 |
| Lead (Pb), % | 0 to 0.030 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 2.5 to 4.0 |
| Molybdenum (Mo), % | 0 | |
| 1.0 to 2.0 |
| Nickel (Ni), % | 0 to 0.010 | |
| 30 to 32 |
| Nitrogen (N), % | 0 | |
| 0.3 to 0.5 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 to 0.020 |
| Silicon (Si), % | 0 | |
| 0 to 0.9 |
| Silver (Ag), % | 71 to 73 | |
| 0 |
| Sulfur (S), % | 0 | |
| 0 to 0.010 |
| Zinc (Zn), % | 0 to 0.060 | |
| 0 |
| Residuals, % | 0 to 0.21 | |
| 0 |