C47940 Brass vs. C38000 Brass
Both C47940 brass and C38000 brass are copper alloys. They have a moderately high 91% of their average alloy composition in common.
For each property being compared, the top bar is C47940 brass and the bottom bar is C38000 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 100 |
| Elongation at Break, % | 14 to 34 | |
| 17 |
| Poisson's Ratio | 0.31 | |
| 0.31 |
| Shear Modulus, GPa | 40 | |
| 39 |
| Shear Strength, MPa | 250 to 310 | |
| 230 |
| Tensile Strength: Ultimate (UTS), MPa | 380 to 520 | |
| 380 |
| Tensile Strength: Yield (Proof), MPa | 160 to 390 | |
| 120 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 170 |
| Maximum Temperature: Mechanical, °C | 130 | |
| 110 |
| Melting Completion (Liquidus), °C | 850 | |
| 800 |
| Melting Onset (Solidus), °C | 800 | |
| 760 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 380 |
| Thermal Conductivity, W/m-K | 110 | |
| 110 |
| Thermal Expansion, µm/m-K | 20 | |
| 21 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 25 | |
| 22 |
| Density, g/cm3 | 8.2 | |
| 8.0 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 2.7 |
| Embodied Energy, MJ/kg | 47 | |
| 46 |
| Embodied Water, L/kg | 330 | |
| 330 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 68 to 100 | |
| 50 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 120 to 740 | |
| 74 |
| Stiffness to Weight: Axial, points | 7.1 | |
| 7.1 |
| Stiffness to Weight: Bending, points | 19 | |
| 19 |
| Strength to Weight: Axial, points | 13 to 17 | |
| 13 |
| Strength to Weight: Bending, points | 14 to 17 | |
| 14 |
| Thermal Diffusivity, mm2/s | 36 | |
| 37 |
| Thermal Shock Resistance, points | 13 to 17 | |
| 13 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 0 to 0.5 |
| Copper (Cu), % | 63 to 66 | |
| 55 to 60 |
| Iron (Fe), % | 0.1 to 1.0 | |
| 0 to 0.35 |
| Lead (Pb), % | 1.0 to 2.0 | |
| 1.5 to 2.5 |
| Nickel (Ni), % | 0.1 to 0.5 | |
| 0 |
| Tin (Sn), % | 1.2 to 2.0 | |
| 0 to 0.3 |
| Zinc (Zn), % | 28.1 to 34.6 | |
| 35.9 to 43.5 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.5 |