C67400 Bronze vs. R30008 Cobalt
C67400 bronze belongs to the copper alloys classification, while R30008 cobalt belongs to the cobalt alloys. There are 22 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 C67400 bronze and the bottom bar is R30008 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 210 |
| Elongation at Break, % | 22 to 28 | |
| 1.1 to 73 |
| Poisson's Ratio | 0.31 | |
| 0.29 |
| Shear Modulus, GPa | 41 | |
| 83 |
| Tensile Strength: Ultimate (UTS), MPa | 480 to 610 | |
| 950 to 1700 |
| Tensile Strength: Yield (Proof), MPa | 250 to 370 | |
| 500 to 1080 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 320 |
| Melting Completion (Liquidus), °C | 890 | |
| 1400 |
| Melting Onset (Solidus), °C | 870 | |
| 1330 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 450 |
| Thermal Expansion, µm/m-K | 21 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 95 |
| Density, g/cm3 | 7.9 | |
| 8.4 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 8.1 |
| Embodied Energy, MJ/kg | 48 | |
| 110 |
| Embodied Water, L/kg | 330 | |
| 400 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 300 to 660 | |
| 590 to 2720 |
| Stiffness to Weight: Axial, points | 7.5 | |
| 14 |
| Stiffness to Weight: Bending, points | 20 | |
| 24 |
| Strength to Weight: Axial, points | 17 to 22 | |
| 31 to 56 |
| Strength to Weight: Bending, points | 17 to 20 | |
| 25 to 37 |
| Thermal Shock Resistance, points | 16 to 20 | |
| 25 to 44 |
Alloy Composition
| Aluminum (Al), % | 0.5 to 2.0 | |
| 0 |
| Boron (B), % | 0 | |
| 0 to 0.0010 |
| Carbon (C), % | 0 | |
| 0 to 0.15 |
| Chromium (Cr), % | 0 | |
| 18.5 to 21.5 |
| Cobalt (Co), % | 0 | |
| 39 to 42 |
| Copper (Cu), % | 57 to 60 | |
| 0 |
| Iron (Fe), % | 0 to 0.35 | |
| 7.6 to 20 |
| Lead (Pb), % | 0 to 0.5 | |
| 0 |
| Manganese (Mn), % | 2.0 to 3.5 | |
| 1.0 to 2.0 |
| Molybdenum (Mo), % | 0 | |
| 6.5 to 7.5 |
| Nickel (Ni), % | 0 to 0.25 | |
| 15 to 18 |
| Phosphorus (P), % | 0 | |
| 0 to 0.015 |
| Silicon (Si), % | 0.5 to 1.5 | |
| 0 to 1.2 |
| Sulfur (S), % | 0 | |
| 0 to 0.015 |
| Tin (Sn), % | 0 to 0.3 | |
| 0 |
| Zinc (Zn), % | 31.1 to 40 | |
| 0 |
| Residuals, % | 0 to 0.5 | |
| 0 |