C99400 Brass vs. C68800 Brass
Both C99400 brass and C68800 brass are copper alloys. They have 77% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is C99400 brass and the bottom bar is C68800 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 110 |
| Poisson's Ratio | 0.34 | |
| 0.32 |
| Shear Modulus, GPa | 44 | |
| 41 |
| Tensile Strength: Ultimate (UTS), MPa | 460 to 550 | |
| 570 to 890 |
| Tensile Strength: Yield (Proof), MPa | 230 to 370 | |
| 390 to 790 |
Thermal Properties
| Latent Heat of Fusion, J/g | 230 | |
| 190 |
| Maximum Temperature: Mechanical, °C | 200 | |
| 160 |
| Melting Completion (Liquidus), °C | 1070 | |
| 960 |
| Melting Onset (Solidus), °C | 1020 | |
| 950 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 400 |
| Thermal Expansion, µm/m-K | 17 | |
| 19 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 17 | |
| 18 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 17 | |
| 20 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 30 | |
| 26 |
| Density, g/cm3 | 8.7 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 2.8 |
| Embodied Energy, MJ/kg | 45 | |
| 48 |
| Embodied Water, L/kg | 310 | |
| 350 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 230 to 590 | |
| 710 to 2860 |
| Stiffness to Weight: Axial, points | 7.5 | |
| 7.3 |
| Stiffness to Weight: Bending, points | 19 | |
| 19 |
| Strength to Weight: Axial, points | 15 to 17 | |
| 19 to 30 |
| Strength to Weight: Bending, points | 15 to 17 | |
| 19 to 25 |
| Thermal Shock Resistance, points | 16 to 19 | |
| 19 to 30 |
Alloy Composition
| Aluminum (Al), % | 0.5 to 2.0 | |
| 3.0 to 3.8 |
| Cobalt (Co), % | 0 | |
| 0.25 to 0.55 |
| Copper (Cu), % | 83.5 to 96.5 | |
| 70.8 to 75.5 |
| Iron (Fe), % | 1.0 to 3.0 | |
| 0 to 0.2 |
| Lead (Pb), % | 0 to 0.25 | |
| 0 to 0.050 |
| Manganese (Mn), % | 0 to 0.5 | |
| 0 |
| Nickel (Ni), % | 1.0 to 3.5 | |
| 0 |
| Silicon (Si), % | 0.5 to 2.0 | |
| 0 |
| Zinc (Zn), % | 0.5 to 5.0 | |
| 21.3 to 24.1 |
| Residuals, % | 0 | |
| 0 to 0.5 |