H08 C35600 Brass vs. H08 C54400 Bronze
Both H08 C35600 brass and H08 C54400 bronze are copper alloys. Both are furnished in the H08 (spring) temper. They have 67% of their average alloy composition in common.
For each property being compared, the top bar is H08 C35600 brass and the bottom bar is H08 C54400 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 110 |
| Poisson's Ratio | 0.31 | |
| 0.34 |
| Rockwell B Hardness | 90 | |
| 92 |
| Rockwell Superficial 30T Hardness | 77 | |
| 78 |
| Shear Modulus, GPa | 39 | |
| 40 |
| Tensile Strength: Ultimate (UTS), MPa | 630 | |
| 670 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 190 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 170 |
| Melting Completion (Liquidus), °C | 900 | |
| 1000 |
| Melting Onset (Solidus), °C | 890 | |
| 930 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 370 |
| Thermal Conductivity, W/m-K | 120 | |
| 86 |
| Thermal Expansion, µm/m-K | 21 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 26 | |
| 19 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 29 | |
| 19 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 31 |
| Density, g/cm3 | 8.1 | |
| 8.9 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 2.9 |
| Embodied Energy, MJ/kg | 45 | |
| 48 |
| Embodied Water, L/kg | 320 | |
| 340 |
Common Calculations
| Stiffness to Weight: Axial, points | 7.0 | |
| 6.8 |
| Stiffness to Weight: Bending, points | 19 | |
| 18 |
| Strength to Weight: Axial, points | 21 | |
| 21 |
| Strength to Weight: Bending, points | 20 | |
| 19 |
| Thermal Diffusivity, mm2/s | 38 | |
| 26 |
| Thermal Shock Resistance, points | 21 | |
| 24 |
Alloy Composition
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| Copper (Cu), % | 60 to 63 | |
| 85.4 to 91.5 |
| Iron (Fe), % | 0 to 0.1 | |
| 0 to 0.1 |
| Lead (Pb), % | 2.0 to 3.0 | |
| 3.5 to 4.5 |
| Phosphorus (P), % | 0 | |
| 0.010 to 0.5 |
| Tin (Sn), % | 0 | |
| 3.5 to 4.5 |
| Zinc (Zn), % | 33.4 to 38 | |
| 1.5 to 4.5 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.5 |