C19000 Copper vs. C21000 Brass
Both C19000 copper and C21000 brass are copper alloys. They have a very high 96% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is C19000 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, % | 2.5 to 50 | |
| 2.9 to 50 |
| Poisson's Ratio | 0.34 | |
| 0.34 |
| Rockwell B Hardness | 45 to 94 | |
| 36 to 73 |
| Shear Modulus, GPa | 43 | |
| 43 |
| Shear Strength, MPa | 170 to 390 | |
| 180 to 280 |
| Tensile Strength: Ultimate (UTS), MPa | 260 to 760 | |
| 240 to 450 |
| Tensile Strength: Yield (Proof), MPa | 140 to 630 | |
| 69 to 440 |
Thermal Properties
| Latent Heat of Fusion, J/g | 210 | |
| 200 |
| Maximum Temperature: Mechanical, °C | 200 | |
| 190 |
| Melting Completion (Liquidus), °C | 1080 | |
| 1070 |
| Melting Onset (Solidus), °C | 1040 | |
| 1050 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 390 |
| Thermal Conductivity, W/m-K | 250 | |
| 230 |
| Thermal Expansion, µm/m-K | 17 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 60 | |
| 56 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 61 | |
| 57 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 31 | |
| 30 |
| Density, g/cm3 | 8.9 | |
| 8.8 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 2.6 |
| Embodied Energy, MJ/kg | 42 | |
| 42 |
| Embodied Water, L/kg | 310 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 18 to 110 | |
| 13 to 100 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 89 to 1730 | |
| 21 to 830 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 18 | |
| 18 |
| Strength to Weight: Axial, points | 8.2 to 24 | |
| 7.4 to 14 |
| Strength to Weight: Bending, points | 10 to 21 | |
| 9.6 to 15 |
| Thermal Diffusivity, mm2/s | 73 | |
| 69 |
| Thermal Shock Resistance, points | 9.3 to 27 | |
| 8.1 to 15 |
Alloy Composition
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| Copper (Cu), % | 96.9 to 99 | |
| 94 to 96 |
| Iron (Fe), % | 0 to 0.1 | |
| 0 to 0.050 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 to 0.030 |
| Nickel (Ni), % | 0.9 to 1.3 | |
| 0 |
| Phosphorus (P), % | 0.15 to 0.35 | |
| 0 |
| Zinc (Zn), % | 0 to 0.8 | |
| 3.7 to 6.0 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.2 |