O50 C46200 Brass vs. O50 C47940 Brass
Both O50 C46200 brass and O50 C47940 brass are copper alloys. Both are furnished in the O50 (light annealed) temper. They have a very high 96% of their average alloy composition in common.
For each property being compared, the top bar is O50 C46200 brass and the bottom bar is O50 C47940 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 100 |
| Elongation at Break, % | 30 | |
| 24 |
| Poisson's Ratio | 0.31 | |
| 0.31 |
| Shear Modulus, GPa | 40 | |
| 40 |
| Shear Strength, MPa | 270 | |
| 270 |
| Tensile Strength: Ultimate (UTS), MPa | 420 | |
| 430 |
| Tensile Strength: Yield (Proof), MPa | 190 | |
| 220 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 170 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 130 |
| Melting Completion (Liquidus), °C | 840 | |
| 850 |
| Melting Onset (Solidus), °C | 800 | |
| 800 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 380 |
| Thermal Conductivity, W/m-K | 110 | |
| 110 |
| Thermal Expansion, µm/m-K | 20 | |
| 20 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 24 | |
| 25 |
| Density, g/cm3 | 8.1 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 2.8 |
| Embodied Energy, MJ/kg | 46 | |
| 47 |
| Embodied Water, L/kg | 330 | |
| 330 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 | |
| 86 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 170 | |
| 230 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 7.1 |
| Stiffness to Weight: Bending, points | 19 | |
| 19 |
| Strength to Weight: Axial, points | 14 | |
| 14 |
| Strength to Weight: Bending, points | 15 | |
| 15 |
| Thermal Diffusivity, mm2/s | 35 | |
| 36 |
| Thermal Shock Resistance, points | 14 | |
| 14 |
Alloy Composition
| Copper (Cu), % | 62 to 65 | |
| 63 to 66 |
| Iron (Fe), % | 0 to 0.1 | |
| 0.1 to 1.0 |
| Lead (Pb), % | 0 to 0.2 | |
| 1.0 to 2.0 |
| Nickel (Ni), % | 0 | |
| 0.1 to 0.5 |
| Tin (Sn), % | 0.5 to 1.0 | |
| 1.2 to 2.0 |
| Zinc (Zn), % | 33.3 to 37.5 | |
| 28.1 to 34.6 |
| Residuals, % | 0 | |
| 0 to 0.4 |