ASTM B617 Coin Silver vs. SAE-AISI H21 Steel
ASTM B617 coin silver belongs to the otherwise unclassified metals classification, while SAE-AISI H21 steel belongs to the iron alloys. There are 15 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.
For each property being compared, the top bar is ASTM B617 coin silver and the bottom bar is SAE-AISI H21 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 75 | |
| 200 |
| Poisson's Ratio | 0.37 | |
| 0.29 |
| Shear Modulus, GPa | 28 | |
| 76 |
| Tensile Strength: Ultimate (UTS), MPa | 290 to 520 | |
| 720 to 1790 |
Thermal Properties
| Latent Heat of Fusion, J/g | 120 | |
| 250 |
| Melting Completion (Liquidus), °C | 870 | |
| 1630 |
| Melting Onset (Solidus), °C | 780 | |
| 1580 |
| Specific Heat Capacity, J/kg-K | 250 | |
| 440 |
| Thermal Expansion, µm/m-K | 19 | |
| 11 |
Otherwise Unclassified Properties
| Density, g/cm3 | 10 | |
| 8.5 |
Common Calculations
| Stiffness to Weight: Axial, points | 4.1 | |
| 13 |
| Stiffness to Weight: Bending, points | 14 | |
| 23 |
| Strength to Weight: Axial, points | 7.7 to 14 | |
| 23 to 58 |
| Strength to Weight: Bending, points | 9.3 to 14 | |
| 21 to 38 |
| Thermal Shock Resistance, points | 14 to 25 | |
| 24 to 59 |
Alloy Composition
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| Aluminum (Al), % | 0 to 0.0050 | |
| 0 |
| Cadmium (Cd), % | 0 to 0.050 | |
| 0 |
| Carbon (C), % | 0 | |
| 0.28 to 0.36 |
| Chromium (Cr), % | 0 | |
| 3.0 to 3.8 |
| Copper (Cu), % | 9.0 to 10.4 | |
| 0 to 0.25 |
| Iron (Fe), % | 0 to 0.050 | |
| 87.6 to 93.8 |
| Lead (Pb), % | 0 to 0.030 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0.15 to 0.4 |
| Nickel (Ni), % | 0 to 0.010 | |
| 0 to 0.3 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 | |
| 0.15 to 0.5 |
| Silver (Ag), % | 89.6 to 91 | |
| 0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Tungsten (W), % | 0 | |
| 8.5 to 10 |
| Vanadium (V), % | 0 | |
| 0.3 to 0.6 |
| Zinc (Zn), % | 0 to 0.060 | |
| 0 |
| Residuals, % | 0 to 0.060 | |
| 0 |