H08 C23400 Brass vs. H08 C66700 Brass
Both H08 C23400 brass and H08 C66700 brass are copper alloys. Both are furnished in the H08 (spring) temper. They have 88% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is H08 C23400 brass and the bottom bar is H08 C66700 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Elongation at Break, % | 3.1 | |
| 2.5 |
| Poisson's Ratio | 0.32 | |
| 0.31 |
| Rockwell B Hardness | 90 | |
| 91 |
| Rockwell Superficial 30T Hardness | 77 | |
| 90 |
| Shear Modulus, GPa | 42 | |
| 41 |
| Shear Strength, MPa | 350 | |
| 530 |
| Tensile Strength: Ultimate (UTS), MPa | 610 | |
| 660 |
| Tensile Strength: Yield (Proof), MPa | 470 | |
| 620 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 180 |
| Maximum Temperature: Mechanical, °C | 160 | |
| 140 |
| Melting Completion (Liquidus), °C | 970 | |
| 1090 |
| Melting Onset (Solidus), °C | 930 | |
| 1050 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 390 |
| Thermal Conductivity, W/m-K | 120 | |
| 97 |
| Thermal Expansion, µm/m-K | 19 | |
| 20 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 27 | |
| 25 |
| Density, g/cm3 | 8.5 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 2.7 |
| Embodied Energy, MJ/kg | 43 | |
| 45 |
| Embodied Water, L/kg | 320 | |
| 320 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 17 | |
| 16 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 980 | |
| 1780 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 7.3 |
| Stiffness to Weight: Bending, points | 19 | |
| 19 |
| Strength to Weight: Axial, points | 20 | |
| 22 |
| Strength to Weight: Bending, points | 19 | |
| 21 |
| Thermal Diffusivity, mm2/s | 36 | |
| 30 |
| Thermal Shock Resistance, points | 21 | |
| 22 |
Alloy Composition
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| Copper (Cu), % | 81 to 84 | |
| 68.5 to 71.5 |
| Iron (Fe), % | 0 to 0.050 | |
| 0 to 0.1 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 to 0.070 |
| Manganese (Mn), % | 0 | |
| 0.8 to 1.5 |
| Zinc (Zn), % | 15.7 to 19 | |
| 26.3 to 30.7 |
| Residuals, % | 0 to 0.2 | |
| 0 to 0.5 |