ASTM B628 Ag-Cu vs. S21800 Stainless Steel
ASTM B628 Ag-Cu belongs to the otherwise unclassified metals classification, while S21800 stainless steel belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.
For each property being compared, the top bar is ASTM B628 Ag-Cu and the bottom bar is S21800 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 83 | |
| 190 |
| Elongation at Break, % | 1.1 to 17 | |
| 40 |
| Poisson's Ratio | 0.36 | |
| 0.28 |
| Shear Modulus, GPa | 31 | |
| 75 |
| Shear Strength, MPa | 210 to 430 | |
| 510 |
| Tensile Strength: Ultimate (UTS), MPa | 350 to 760 | |
| 740 |
Thermal Properties
| Latent Heat of Fusion, J/g | 140 | |
| 340 |
| Melting Completion (Liquidus), °C | 780 | |
| 1360 |
| Melting Onset (Solidus), °C | 780 | |
| 1310 |
| Specific Heat Capacity, J/kg-K | 280 | |
| 500 |
| Thermal Expansion, µm/m-K | 19 | |
| 16 |
Otherwise Unclassified Properties
| Density, g/cm3 | 10 | |
| 7.5 |
Common Calculations
| Stiffness to Weight: Axial, points | 4.6 | |
| 14 |
| Stiffness to Weight: Bending, points | 14 | |
| 26 |
| Strength to Weight: Axial, points | 9.5 to 21 | |
| 27 |
| Strength to Weight: Bending, points | 11 to 18 | |
| 24 |
| Thermal Shock Resistance, points | 16 to 34 | |
| 17 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.0050 | |
| 0 |
| Cadmium (Cd), % | 0 to 0.050 | |
| 0 |
| Carbon (C), % | 0 | |
| 0 to 0.1 |
| Chromium (Cr), % | 0 | |
| 16 to 18 |
| Copper (Cu), % | 26.6 to 29 | |
| 0 |
| Iron (Fe), % | 0 to 0.050 | |
| 59.1 to 65.4 |
| Lead (Pb), % | 0 to 0.030 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 7.0 to 9.0 |
| Nickel (Ni), % | 0 to 0.010 | |
| 8.0 to 9.0 |
| Nitrogen (N), % | 0 | |
| 0.080 to 0.18 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 to 0.060 |
| Silicon (Si), % | 0 | |
| 3.5 to 4.5 |
| Silver (Ag), % | 71 to 73 | |
| 0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Zinc (Zn), % | 0 to 0.060 | |
| 0 |
| Residuals, % | 0 to 0.21 | |
| 0 |