C68000 Brass vs. C68100 Brass
Both C68000 brass and C68100 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. Their average alloy composition is basically identical. There are 27 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 C68000 brass and the bottom bar is C68100 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 100 |
| Elongation at Break, % | 27 | |
| 29 |
| Poisson's Ratio | 0.3 | |
| 0.3 |
| Shear Modulus, GPa | 40 | |
| 40 |
| Tensile Strength: Ultimate (UTS), MPa | 390 | |
| 380 |
| Tensile Strength: Yield (Proof), MPa | 140 | |
| 140 |
Thermal Properties
| Brazing Temperature, °C | 880 to 980 | |
| 910 to 950 |
| Latent Heat of Fusion, J/g | 170 | |
| 170 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 120 |
| Melting Completion (Liquidus), °C | 880 | |
| 890 |
| Melting Onset (Solidus), °C | 870 | |
| 870 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 390 |
| Thermal Conductivity, W/m-K | 96 | |
| 98 |
| Thermal Expansion, µm/m-K | 21 | |
| 21 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 23 |
| Density, g/cm3 | 8.0 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 2.8 |
| Embodied Energy, MJ/kg | 48 | |
| 47 |
| Embodied Water, L/kg | 330 | |
| 330 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 82 | |
| 86 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 95 | |
| 94 |
| Stiffness to Weight: Axial, points | 7.3 | |
| 7.3 |
| Stiffness to Weight: Bending, points | 20 | |
| 20 |
| Strength to Weight: Axial, points | 14 | |
| 13 |
| Strength to Weight: Bending, points | 15 | |
| 15 |
| Thermal Diffusivity, mm2/s | 31 | |
| 32 |
| Thermal Shock Resistance, points | 13 | |
| 13 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.010 | |
| 0 to 0.010 |
| Copper (Cu), % | 56 to 60 | |
| 56 to 60 |
| Iron (Fe), % | 0.25 to 1.3 | |
| 0.25 to 1.3 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 to 0.050 |
| Manganese (Mn), % | 0.010 to 0.5 | |
| 0.010 to 0.5 |
| Nickel (Ni), % | 0.2 to 0.8 | |
| 0 |
| Silicon (Si), % | 0.040 to 0.15 | |
| 0.040 to 0.15 |
| Tin (Sn), % | 0.75 to 1.1 | |
| 0.75 to 1.1 |
| Zinc (Zn), % | 35.6 to 42.8 | |
| 36.4 to 43 |
| Residuals, % | 0 | |
| 0 to 0.5 |