C68800 Brass vs. Grade 366 Molybdenum
C68800 brass belongs to the copper alloys classification, while grade 366 molybdenum belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.
For each property being compared, the top bar is C68800 brass and the bottom bar is grade 366 molybdenum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 300 |
| Elongation at Break, % | 2.0 to 36 | |
| 2.2 |
| Poisson's Ratio | 0.32 | |
| 0.3 |
| Shear Modulus, GPa | 41 | |
| 120 |
| Tensile Strength: Ultimate (UTS), MPa | 570 to 890 | |
| 580 |
| Tensile Strength: Yield (Proof), MPa | 390 to 790 | |
| 470 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 310 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 210 |
| Thermal Expansion, µm/m-K | 19 | |
| 7.6 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.2 | |
| 12 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 27 |
| Embodied Energy, MJ/kg | 48 | |
| 340 |
| Embodied Water, L/kg | 350 | |
| 300 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 16 to 180 | |
| 12 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 710 to 2860 | |
| 370 |
| Stiffness to Weight: Axial, points | 7.3 | |
| 14 |
| Stiffness to Weight: Bending, points | 19 | |
| 18 |
| Strength to Weight: Axial, points | 19 to 30 | |
| 13 |
| Strength to Weight: Bending, points | 19 to 25 | |
| 13 |
| Thermal Shock Resistance, points | 19 to 30 | |
| 18 |
Alloy Composition
| Aluminum (Al), % | 3.0 to 3.8 | |
| 0 |
| Carbon (C), % | 0 | |
| 0 to 0.030 |
| Cobalt (Co), % | 0.25 to 0.55 | |
| 0 |
| Copper (Cu), % | 70.8 to 75.5 | |
| 0 |
| Iron (Fe), % | 0 to 0.2 | |
| 0 to 0.010 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 |
| Molybdenum (Mo), % | 0 | |
| 66.9 to 73 |
| Nickel (Ni), % | 0 | |
| 0 to 0.0020 |
| Nitrogen (N), % | 0 | |
| 0 to 0.0020 |
| Oxygen (O), % | 0 | |
| 0 to 0.0025 |
| Silicon (Si), % | 0 | |
| 0 to 0.010 |
| Tungsten (W), % | 0 | |
| 27 to 33 |
| Zinc (Zn), % | 21.3 to 24.1 | |
| 0 |
| Residuals, % | 0 to 0.5 | |
| 0 |