C44400 Brass vs. C44500 Brass
Both C44400 brass and C44500 brass are copper alloys. Both are furnished in the O61 (annealed) temper. Their average alloy composition is basically identical.
For each property being compared, the top bar is C44400 brass and the bottom bar is C44500 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Poisson's Ratio | 0.32 | |
| 0.32 |
| Shear Modulus, GPa | 41 | |
| 41 |
| Tensile Strength: Ultimate (UTS), MPa | 350 | |
| 350 |
| Tensile Strength: Yield (Proof), MPa | 120 | |
| 120 |
Thermal Properties
| Latent Heat of Fusion, J/g | 180 | |
| 180 |
| Maximum Temperature: Mechanical, °C | 140 | |
| 140 |
| Melting Completion (Liquidus), °C | 940 | |
| 940 |
| Melting Onset (Solidus), °C | 900 | |
| 900 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 380 |
| Thermal Conductivity, W/m-K | 110 | |
| 110 |
| Thermal Expansion, µm/m-K | 20 | |
| 20 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 25 | |
| 25 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 27 | |
| 27 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 26 | |
| 26 |
| Density, g/cm3 | 8.3 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 2.7 |
| Embodied Energy, MJ/kg | 46 | |
| 46 |
| Embodied Water, L/kg | 330 | |
| 330 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 65 | |
| 65 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 19 | |
| 19 |
| Strength to Weight: Axial, points | 12 | |
| 12 |
| Strength to Weight: Bending, points | 13 | |
| 13 |
| Thermal Diffusivity, mm2/s | 35 | |
| 35 |
| Thermal Shock Resistance, points | 12 | |
| 12 |
Alloy Composition
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| Antimony (Sb), % | 0.020 to 0.1 | |
| 0 |
| Copper (Cu), % | 70 to 73 | |
| 70 to 73 |
| Iron (Fe), % | 0 to 0.060 | |
| 0 to 0.060 |
| Lead (Pb), % | 0 to 0.070 | |
| 0 to 0.070 |
| Phosphorus (P), % | 0 | |
| 0.020 to 0.1 |
| Tin (Sn), % | 0.9 to 1.2 | |
| 0.9 to 1.2 |
| Zinc (Zn), % | 25.2 to 29.1 | |
| 25.2 to 29.1 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.4 |