C17000 Copper vs. C21000 Brass
Both C17000 copper and C21000 brass are copper alloys. They have a very high 95% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is C17000 copper and the bottom bar is C21000 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 110 |
| Elongation at Break, % | 1.1 to 31 | |
| 2.9 to 50 |
| Poisson's Ratio | 0.33 | |
| 0.34 |
| Shear Modulus, GPa | 45 | |
| 43 |
| Shear Strength, MPa | 320 to 750 | |
| 180 to 280 |
| Tensile Strength: Ultimate (UTS), MPa | 490 to 1310 | |
| 240 to 450 |
| Tensile Strength: Yield (Proof), MPa | 160 to 1140 | |
| 69 to 440 |
Thermal Properties
| Latent Heat of Fusion, J/g | 230 | |
| 200 |
| Maximum Temperature: Mechanical, °C | 270 | |
| 190 |
| Melting Completion (Liquidus), °C | 980 | |
| 1070 |
| Melting Onset (Solidus), °C | 870 | |
| 1050 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 390 |
| Thermal Conductivity, W/m-K | 110 | |
| 230 |
| Thermal Expansion, µm/m-K | 17 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 22 | |
| 56 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 22 | |
| 57 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.8 | |
| 8.8 |
| Embodied Carbon, kg CO2/kg material | 8.7 | |
| 2.6 |
| Embodied Energy, MJ/kg | 140 | |
| 42 |
| Embodied Water, L/kg | 310 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 4.2 to 390 | |
| 13 to 100 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 110 to 5420 | |
| 21 to 830 |
| Stiffness to Weight: Axial, points | 7.6 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 19 | |
| 18 |
| Strength to Weight: Axial, points | 15 to 41 | |
| 7.4 to 14 |
| Strength to Weight: Bending, points | 16 to 30 | |
| 9.6 to 15 |
| Thermal Diffusivity, mm2/s | 32 | |
| 69 |
| Thermal Shock Resistance, points | 17 to 45 | |
| 8.1 to 15 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.2 | |
| 0 |
| Beryllium (Be), % | 1.6 to 1.8 | |
| 0 |
| Copper (Cu), % | 96.3 to 98.2 | |
| 94 to 96 |
| Iron (Fe), % | 0 to 0.4 | |
| 0 to 0.050 |
| Lead (Pb), % | 0 | |
| 0 to 0.030 |
| Nickel (Ni), % | 0.2 to 0.6 | |
| 0 |
| Silicon (Si), % | 0 to 0.2 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 3.7 to 6.0 |
| Residuals, % | 0 | |
| 0 to 0.2 |