H10 C27400 Brass vs. H10 C52100 Bronze
Both H10 C27400 brass and H10 C52100 bronze are copper alloys. Both are furnished in the H10 (extra spring) temper. They have 63% of their average alloy composition in common.
For each property being compared, the top bar is H10 C27400 brass and the bottom bar is H10 C52100 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Poisson's Ratio | 0.31 | |
| 0.34 |
| Rockwell B Hardness | 91 | |
| 100 |
| Rockwell Superficial 30T Hardness | 78 | |
| 82 |
| Shear Modulus, GPa | 40 | |
| 41 |
| Tensile Strength: Ultimate (UTS), MPa | 650 | |
| 800 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 200 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 180 |
| Melting Completion (Liquidus), °C | 920 | |
| 1030 |
| Melting Onset (Solidus), °C | 870 | |
| 880 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 370 |
| Thermal Conductivity, W/m-K | 120 | |
| 62 |
| Thermal Expansion, µm/m-K | 21 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 28 | |
| 13 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 31 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 34 |
| Density, g/cm3 | 8.0 | |
| 8.8 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 3.4 |
| Embodied Energy, MJ/kg | 45 | |
| 55 |
| Embodied Water, L/kg | 320 | |
| 370 |
Common Calculations
| Stiffness to Weight: Axial, points | 7.2 | |
| 7.0 |
| Stiffness to Weight: Bending, points | 20 | |
| 18 |
| Strength to Weight: Axial, points | 23 | |
| 25 |
| Strength to Weight: Bending, points | 21 | |
| 22 |
| Thermal Diffusivity, mm2/s | 37 | |
| 19 |
| Thermal Shock Resistance, points | 22 | |
| 28 |
Alloy Composition
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| Copper (Cu), % | 61 to 64 | |
| 89.8 to 93 |
| Iron (Fe), % | 0 to 0.1 | |
| 0 to 0.1 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 to 0.050 |
| Phosphorus (P), % | 0 | |
| 0.030 to 0.35 |
| Tin (Sn), % | 0 | |
| 7.0 to 9.0 |
| Zinc (Zn), % | 35.6 to 39 | |
| 0 to 0.2 |
| Residuals, % | 0 to 0.3 | |
| 0 to 0.5 |