C68700 Brass vs. SAE-AISI M33 Steel
C68700 brass belongs to the copper alloys classification, while SAE-AISI M33 steel belongs to the iron alloys. There are 21 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 M33 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 200 |
| Poisson's Ratio | 0.32 | |
| 0.29 |
| Shear Modulus, GPa | 41 | |
| 78 |
| Tensile Strength: Ultimate (UTS), MPa | 390 | |
| 810 to 2210 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 270 |
| Melting Completion (Liquidus), °C | 970 | |
| 1550 |
| Melting Onset (Solidus), °C | 930 | |
| 1500 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 440 |
| Thermal Conductivity, W/m-K | 100 | |
| 20 |
| Thermal Expansion, µm/m-K | 19 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 26 | |
| 32 |
| Density, g/cm3 | 8.3 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 7.7 |
| Embodied Energy, MJ/kg | 46 | |
| 110 |
| Embodied Water, L/kg | 340 | |
| 150 |
Common Calculations
| Stiffness to Weight: Axial, points | 7.3 | |
| 14 |
| Stiffness to Weight: Bending, points | 19 | |
| 24 |
| Strength to Weight: Axial, points | 13 | |
| 27 to 75 |
| Strength to Weight: Bending, points | 14 | |
| 24 to 46 |
| Thermal Diffusivity, mm2/s | 30 | |
| 5.5 |
| Thermal Shock Resistance, points | 13 | |
| 25 to 68 |
Alloy Composition
| Aluminum (Al), % | 1.8 to 2.5 | |
| 0 |
| Arsenic (As), % | 0.020 to 0.1 | |
| 0 |
| Carbon (C), % | 0 | |
| 0.85 to 0.92 |
| Chromium (Cr), % | 0 | |
| 3.5 to 4.0 |
| Cobalt (Co), % | 0 | |
| 7.8 to 8.8 |
| Copper (Cu), % | 76 to 79 | |
| 0 to 0.25 |
| Iron (Fe), % | 0 to 0.060 | |
| 71.4 to 76.3 |
| Lead (Pb), % | 0 to 0.070 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0.15 to 0.4 |
| Molybdenum (Mo), % | 0 | |
| 9.0 to 10 |
| Nickel (Ni), % | 0 | |
| 0 to 0.3 |
| Phosphorus (P), % | 0 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 | |
| 0.15 to 0.5 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Tungsten (W), % | 0 | |
| 1.3 to 2.1 |
| Vanadium (V), % | 0 | |
| 1.0 to 1.4 |
| Zinc (Zn), % | 17.8 to 22.2 | |
| 0 |
| Residuals, % | 0 to 0.5 | |
| 0 |