C87200 Bronze vs. ASTM B617 Coin Silver
C87200 bronze belongs to the copper alloys classification, while ASTM B617 coin silver belongs to the otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is C87200 bronze and the bottom bar is ASTM B617 coin silver.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 75 |
| Elongation at Break, % | 30 | |
| 1.1 to 22 |
| Poisson's Ratio | 0.34 | |
| 0.37 |
| Shear Modulus, GPa | 43 | |
| 28 |
| Tensile Strength: Ultimate (UTS), MPa | 380 | |
| 290 to 520 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 120 |
| Melting Completion (Liquidus), °C | 970 | |
| 870 |
| Melting Onset (Solidus), °C | 860 | |
| 780 |
| Specific Heat Capacity, J/kg-K | 410 | |
| 250 |
| Thermal Expansion, µm/m-K | 17 | |
| 19 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 6.0 | |
| 83 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 6.3 | |
| 72 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.6 | |
| 10 |
Common Calculations
| Stiffness to Weight: Axial, points | 7.4 | |
| 4.1 |
| Stiffness to Weight: Bending, points | 19 | |
| 14 |
| Strength to Weight: Axial, points | 12 | |
| 7.7 to 14 |
| Strength to Weight: Bending, points | 14 | |
| 9.3 to 14 |
| Thermal Shock Resistance, points | 14 | |
| 14 to 25 |
Alloy Composition
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| Aluminum (Al), % | 0 to 1.5 | |
| 0 to 0.0050 |
| Cadmium (Cd), % | 0 | |
| 0 to 0.050 |
| Copper (Cu), % | 89 to 99 | |
| 9.0 to 10.4 |
| Iron (Fe), % | 0 to 2.5 | |
| 0 to 0.050 |
| Lead (Pb), % | 0 to 0.5 | |
| 0 to 0.030 |
| Manganese (Mn), % | 0 to 1.5 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 0 to 0.010 |
| Phosphorus (P), % | 0 to 0.5 | |
| 0 to 0.020 |
| Silicon (Si), % | 1.0 to 5.0 | |
| 0 |
| Silver (Ag), % | 0 | |
| 89.6 to 91 |
| Tin (Sn), % | 0 to 1.0 | |
| 0 |
| Zinc (Zn), % | 0 to 5.0 | |
| 0 to 0.060 |
| Residuals, % | 0 | |
| 0 to 0.060 |