C34200 Brass vs. C51100 Bronze
Both C34200 brass and C51100 bronze are copper alloys. They have 64% of their average alloy composition in common.
For each property being compared, the top bar is C34200 brass and the bottom bar is C51100 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 110 |
| Elongation at Break, % | 3.0 to 17 | |
| 2.5 to 50 |
| Poisson's Ratio | 0.31 | |
| 0.34 |
| Rockwell B Hardness | 53 to 91 | |
| 67 to 93 |
| Rockwell Superficial 30T Hardness | 52 to 78 | |
| 33 to 79 |
| Shear Modulus, GPa | 40 | |
| 42 |
| Shear Strength, MPa | 230 to 360 | |
| 230 to 410 |
| Tensile Strength: Ultimate (UTS), MPa | 370 to 650 | |
| 330 to 720 |
| Tensile Strength: Yield (Proof), MPa | 150 to 420 | |
| 93 to 700 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 200 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 190 |
| Melting Completion (Liquidus), °C | 910 | |
| 1060 |
| Melting Onset (Solidus), °C | 890 | |
| 970 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 380 |
| Thermal Conductivity, W/m-K | 120 | |
| 84 |
| Thermal Expansion, µm/m-K | 21 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 26 | |
| 20 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 29 | |
| 20 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 24 | |
| 32 |
| Density, g/cm3 | 8.2 | |
| 8.9 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 3.0 |
| Embodied Energy, MJ/kg | 45 | |
| 48 |
| Embodied Water, L/kg | 320 | |
| 340 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 9.0 to 98 | |
| 18 to 140 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 110 to 870 | |
| 38 to 2170 |
| Stiffness to Weight: Axial, points | 7.1 | |
| 7.1 |
| Stiffness to Weight: Bending, points | 19 | |
| 18 |
| Strength to Weight: Axial, points | 13 to 22 | |
| 10 to 22 |
| Strength to Weight: Bending, points | 14 to 20 | |
| 12 to 20 |
| Thermal Diffusivity, mm2/s | 37 | |
| 25 |
| Thermal Shock Resistance, points | 12 to 22 | |
| 12 to 26 |
Alloy Composition
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| Copper (Cu), % | 62 to 65 | |
| 93.8 to 96.5 |
| Iron (Fe), % | 0 to 0.1 | |
| 0 to 0.1 |
| Lead (Pb), % | 1.5 to 2.5 | |
| 0 to 0.050 |
| Phosphorus (P), % | 0 | |
| 0.030 to 0.35 |
| Tin (Sn), % | 0 | |
| 3.5 to 4.9 |
| Zinc (Zn), % | 32 to 36.5 | |
| 0 to 0.3 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.5 |