C68700 Brass vs. SAE-AISI 1140 Steel
C68700 brass belongs to the copper alloys classification, while SAE-AISI 1140 steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is C68700 brass and the bottom bar is SAE-AISI 1140 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 190 |
| Poisson's Ratio | 0.32 | |
| 0.29 |
| Shear Modulus, GPa | 41 | |
| 72 |
| Tensile Strength: Ultimate (UTS), MPa | 390 | |
| 600 to 700 |
| Tensile Strength: Yield (Proof), MPa | 140 | |
| 340 to 570 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 160 | |
| 400 |
| Melting Completion (Liquidus), °C | 970 | |
| 1460 |
| Melting Onset (Solidus), °C | 930 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 470 |
| Thermal Conductivity, W/m-K | 100 | |
| 51 |
| Thermal Expansion, µm/m-K | 19 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 23 | |
| 7.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 25 | |
| 8.1 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 26 | |
| 1.8 |
| Density, g/cm3 | 8.3 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 1.4 |
| Embodied Energy, MJ/kg | 46 | |
| 18 |
| Embodied Water, L/kg | 340 | |
| 46 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 90 | |
| 310 to 870 |
| Stiffness to Weight: Axial, points | 7.3 | |
| 13 |
| Stiffness to Weight: Bending, points | 19 | |
| 24 |
| Strength to Weight: Axial, points | 13 | |
| 21 to 25 |
| Strength to Weight: Bending, points | 14 | |
| 20 to 22 |
| Thermal Diffusivity, mm2/s | 30 | |
| 14 |
| Thermal Shock Resistance, points | 13 | |
| 18 to 21 |
Alloy Composition
| Aluminum (Al), % | 1.8 to 2.5 | |
| 0 |
| Arsenic (As), % | 0.020 to 0.1 | |
| 0 |
| Carbon (C), % | 0 | |
| 0.37 to 0.44 |
| Copper (Cu), % | 76 to 79 | |
| 0 |
| Iron (Fe), % | 0 to 0.060 | |
| 98.4 to 98.9 |
| Lead (Pb), % | 0 to 0.070 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0.7 to 1.0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Sulfur (S), % | 0 | |
| 0.080 to 0.13 |
| Zinc (Zn), % | 17.8 to 22.2 | |
| 0 |
| Residuals, % | 0 to 0.5 | |
| 0 |