C66700 Brass vs. C33500 Brass
Both C66700 brass and C33500 brass are copper alloys. They have a moderately high 92% of their average alloy composition in common.
For each property being compared, the top bar is C66700 brass and the bottom bar is C33500 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 100 |
| Elongation at Break, % | 2.0 to 58 | |
| 3.0 to 28 |
| Poisson's Ratio | 0.31 | |
| 0.31 |
| Rockwell B Hardness | 57 to 93 | |
| 53 to 91 |
| Rockwell Superficial 30T Hardness | 30 to 90 | |
| 52 to 78 |
| Shear Modulus, GPa | 41 | |
| 40 |
| Shear Strength, MPa | 250 to 530 | |
| 220 to 360 |
| Tensile Strength: Ultimate (UTS), MPa | 340 to 690 | |
| 340 to 650 |
| Tensile Strength: Yield (Proof), MPa | 100 to 640 | |
| 120 to 420 |
Thermal Properties
| Latent Heat of Fusion, J/g | 180 | |
| 170 |
| Maximum Temperature: Mechanical, °C | 140 | |
| 120 |
| Melting Completion (Liquidus), °C | 1090 | |
| 930 |
| Melting Onset (Solidus), °C | 1050 | |
| 900 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 390 |
| Thermal Conductivity, W/m-K | 97 | |
| 120 |
| Thermal Expansion, µm/m-K | 20 | |
| 20 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 17 | |
| 26 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 19 | |
| 29 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 25 | |
| 24 |
| Density, g/cm3 | 8.2 | |
| 8.1 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 2.7 |
| Embodied Energy, MJ/kg | 45 | |
| 45 |
| Embodied Water, L/kg | 320 | |
| 320 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 13 to 150 | |
| 8.0 to 160 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 49 to 1900 | |
| 69 to 860 |
| Stiffness to Weight: Axial, points | 7.3 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 19 | |
| 19 |
| Strength to Weight: Axial, points | 11 to 23 | |
| 12 to 22 |
| Strength to Weight: Bending, points | 13 to 21 | |
| 13 to 21 |
| Thermal Diffusivity, mm2/s | 30 | |
| 37 |
| Thermal Shock Resistance, points | 11 to 23 | |
| 11 to 22 |
Alloy Composition
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| Copper (Cu), % | 68.5 to 71.5 | |
| 62 to 65 |
| Iron (Fe), % | 0 to 0.1 | |
| 0 to 0.1 |
| Lead (Pb), % | 0 to 0.070 | |
| 0.25 to 0.7 |
| Manganese (Mn), % | 0.8 to 1.5 | |
| 0 |
| Zinc (Zn), % | 26.3 to 30.7 | |
| 33.8 to 37.8 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.4 |