C21000 Brass vs. Commercially Pure Silver
C21000 brass belongs to the copper alloys classification, while commercially pure silver belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.
For each property being compared, the top bar is C21000 brass and the bottom bar is commercially pure silver.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 71 |
| Elongation at Break, % | 2.9 to 50 | |
| 1.1 to 29 |
| Poisson's Ratio | 0.34 | |
| 0.37 |
| Shear Modulus, GPa | 43 | |
| 26 |
| Shear Strength, MPa | 180 to 280 | |
| 120 to 190 |
| Tensile Strength: Ultimate (UTS), MPa | 240 to 450 | |
| 190 to 340 |
Thermal Properties
| Latent Heat of Fusion, J/g | 200 | |
| 110 |
| Melting Completion (Liquidus), °C | 1070 | |
| 960 |
| Melting Onset (Solidus), °C | 1050 | |
| 960 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 240 |
| Thermal Conductivity, W/m-K | 230 | |
| 420 |
| Thermal Expansion, µm/m-K | 18 | |
| 20 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 56 | |
| 100 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 57 | |
| 87 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.8 | |
| 10 |
Common Calculations
| Stiffness to Weight: Axial, points | 7.2 | |
| 3.8 |
| Stiffness to Weight: Bending, points | 18 | |
| 13 |
| Strength to Weight: Axial, points | 7.4 to 14 | |
| 4.9 to 8.9 |
| Strength to Weight: Bending, points | 9.6 to 15 | |
| 6.9 to 10 |
| Thermal Diffusivity, mm2/s | 69 | |
| 170 |
| Thermal Shock Resistance, points | 8.1 to 15 | |
| 9.5 to 17 |
Alloy Composition
| Copper (Cu), % | 94 to 96 | |
| 0 |
| Iron (Fe), % | 0 to 0.050 | |
| 0 |
| Lead (Pb), % | 0 to 0.030 | |
| 0 |
| Silver (Ag), % | 0 | |
| 99.9 to 100 |
| Zinc (Zn), % | 3.7 to 6.0 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.1 |