C51000 Bronze vs. C42200 Brass
Both C51000 bronze and C42200 brass are copper alloys. They have 89% of their average alloy composition in common.
For each property being compared, the top bar is C51000 bronze and the bottom bar is C42200 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Elongation at Break, % | 2.7 to 64 | |
| 2.0 to 46 |
| Poisson's Ratio | 0.34 | |
| 0.33 |
| Rockwell B Hardness | 26 to 97 | |
| 56 to 87 |
| Rockwell Superficial 30T Hardness | 42 to 80 | |
| 27 to 74 |
| Shear Modulus, GPa | 42 | |
| 42 |
| Shear Strength, MPa | 250 to 460 | |
| 210 to 350 |
| Tensile Strength: Ultimate (UTS), MPa | 330 to 780 | |
| 300 to 610 |
| Tensile Strength: Yield (Proof), MPa | 130 to 750 | |
| 100 to 570 |
Thermal Properties
| Latent Heat of Fusion, J/g | 200 | |
| 200 |
| Maximum Temperature: Mechanical, °C | 190 | |
| 170 |
| Melting Completion (Liquidus), °C | 1050 | |
| 1040 |
| Melting Onset (Solidus), °C | 960 | |
| 1020 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 380 |
| Thermal Conductivity, W/m-K | 77 | |
| 130 |
| Thermal Expansion, µm/m-K | 18 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 18 | |
| 31 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 18 | |
| 32 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 33 | |
| 29 |
| Density, g/cm3 | 8.8 | |
| 8.6 |
| Embodied Carbon, kg CO2/kg material | 3.1 | |
| 2.7 |
| Embodied Energy, MJ/kg | 50 | |
| 44 |
| Embodied Water, L/kg | 350 | |
| 320 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 7.0 to 490 | |
| 12 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 75 to 2490 | |
| 49 to 1460 |
| Stiffness to Weight: Axial, points | 7.0 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 18 | |
| 19 |
| Strength to Weight: Axial, points | 10 to 25 | |
| 9.5 to 19 |
| Strength to Weight: Bending, points | 12 to 21 | |
| 11 to 18 |
| Thermal Diffusivity, mm2/s | 23 | |
| 39 |
| Thermal Shock Resistance, points | 12 to 28 | |
| 10 to 21 |
Alloy Composition
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| Copper (Cu), % | 92.9 to 95.5 | |
| 86 to 89 |
| Iron (Fe), % | 0 to 0.1 | |
| 0 to 0.050 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 to 0.050 |
| Phosphorus (P), % | 0.030 to 0.35 | |
| 0 to 0.35 |
| Tin (Sn), % | 4.5 to 5.8 | |
| 0.8 to 1.4 |
| Zinc (Zn), % | 0 to 0.3 | |
| 8.7 to 13.2 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.5 |