C46500 Brass vs. R30155 Cobalt
C46500 brass belongs to the copper alloys classification, while R30155 cobalt belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is C46500 brass and the bottom bar is R30155 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 210 |
| Elongation at Break, % | 18 to 50 | |
| 34 |
| Poisson's Ratio | 0.31 | |
| 0.29 |
| Shear Modulus, GPa | 40 | |
| 81 |
| Shear Strength, MPa | 280 to 380 | |
| 570 |
| Tensile Strength: Ultimate (UTS), MPa | 380 to 610 | |
| 850 |
| Tensile Strength: Yield (Proof), MPa | 190 to 490 | |
| 390 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 300 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 1100 |
| Melting Completion (Liquidus), °C | 900 | |
| 1470 |
| Melting Onset (Solidus), °C | 890 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 450 |
| Thermal Conductivity, W/m-K | 120 | |
| 12 |
| Thermal Expansion, µm/m-K | 21 | |
| 14 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 80 |
| Density, g/cm3 | 8.0 | |
| 8.5 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 9.7 |
| Embodied Energy, MJ/kg | 47 | |
| 150 |
| Embodied Water, L/kg | 330 | |
| 300 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 99 to 160 | |
| 230 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 170 to 1170 | |
| 370 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 14 |
| Stiffness to Weight: Bending, points | 20 | |
| 23 |
| Strength to Weight: Axial, points | 13 to 21 | |
| 28 |
| Strength to Weight: Bending, points | 15 to 20 | |
| 24 |
| Thermal Diffusivity, mm2/s | 38 | |
| 3.2 |
| Thermal Shock Resistance, points | 13 to 20 | |
| 21 |
Alloy Composition
| Arsenic (As), % | 0.020 to 0.060 | |
| 0 |
| Carbon (C), % | 0 | |
| 0.080 to 0.16 |
| Chromium (Cr), % | 0 | |
| 20 to 22.5 |
| Cobalt (Co), % | 0 | |
| 18.5 to 21 |
| Copper (Cu), % | 59 to 62 | |
| 0 |
| Iron (Fe), % | 0 to 0.1 | |
| 24.3 to 36.2 |
| Lead (Pb), % | 0 to 0.2 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 1.0 to 2.0 |
| Molybdenum (Mo), % | 0 | |
| 2.5 to 3.5 |
| Nickel (Ni), % | 0 | |
| 19 to 21 |
| Niobium (Nb), % | 0 | |
| 0.75 to 1.3 |
| Nitrogen (N), % | 0 | |
| 0 to 0.2 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Tantalum (Ta), % | 0 | |
| 0.75 to 1.3 |
| Tin (Sn), % | 0.5 to 1.0 | |
| 0 |
| Tungsten (W), % | 0 | |
| 2.0 to 3.0 |
| Zinc (Zn), % | 36.2 to 40.5 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |