C33500 Brass vs. C51900 Bronze
Both C33500 brass and C51900 bronze are copper alloys. They have 64% of their average alloy composition in common.
For each property being compared, the top bar is C33500 brass and the bottom bar is C51900 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 110 |
| Elongation at Break, % | 3.0 to 28 | |
| 14 to 29 |
| Poisson's Ratio | 0.31 | |
| 0.34 |
| Rockwell B Hardness | 53 to 91 | |
| 42 to 91 |
| Rockwell Superficial 30T Hardness | 52 to 78 | |
| 45 to 76 |
| Shear Modulus, GPa | 40 | |
| 42 |
| Shear Strength, MPa | 220 to 360 | |
| 320 to 370 |
| Tensile Strength: Ultimate (UTS), MPa | 340 to 650 | |
| 380 to 620 |
| Tensile Strength: Yield (Proof), MPa | 120 to 420 | |
| 390 to 570 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 200 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 180 |
| Melting Completion (Liquidus), °C | 930 | |
| 1040 |
| Melting Onset (Solidus), °C | 900 | |
| 930 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 380 |
| Thermal Conductivity, W/m-K | 120 | |
| 66 |
| Thermal Expansion, µm/m-K | 20 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 26 | |
| 14 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 29 | |
| 14 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 24 | |
| 33 |
| Density, g/cm3 | 8.1 | |
| 8.8 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 3.2 |
| Embodied Energy, MJ/kg | 45 | |
| 51 |
| Embodied Water, L/kg | 320 | |
| 360 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 8.0 to 160 | |
| 55 to 180 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 69 to 860 | |
| 680 to 1450 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 7.0 |
| Stiffness to Weight: Bending, points | 19 | |
| 18 |
| Strength to Weight: Axial, points | 12 to 22 | |
| 12 to 19 |
| Strength to Weight: Bending, points | 13 to 21 | |
| 13 to 18 |
| Thermal Diffusivity, mm2/s | 37 | |
| 20 |
| Thermal Shock Resistance, points | 11 to 22 | |
| 14 to 22 |
Alloy Composition
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| Copper (Cu), % | 62 to 65 | |
| 91.7 to 95 |
| Iron (Fe), % | 0 to 0.1 | |
| 0 to 0.1 |
| Lead (Pb), % | 0.25 to 0.7 | |
| 0 to 0.050 |
| Phosphorus (P), % | 0 | |
| 0.030 to 0.35 |
| Tin (Sn), % | 0 | |
| 5.0 to 7.0 |
| Zinc (Zn), % | 33.8 to 37.8 | |
| 0 to 0.3 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.5 |