C95700 Bronze vs. R30035 Cobalt
C95700 bronze belongs to the copper alloys classification, while R30035 cobalt belongs to the cobalt alloys. There are 27 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is C95700 bronze and the bottom bar is R30035 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 130 | |
| 220 to 230 |
| Elongation at Break, % | 23 | |
| 9.0 to 46 |
| Poisson's Ratio | 0.34 | |
| 0.29 |
| Shear Modulus, GPa | 47 | |
| 84 to 89 |
| Tensile Strength: Ultimate (UTS), MPa | 680 | |
| 900 to 1900 |
| Tensile Strength: Yield (Proof), MPa | 310 | |
| 300 to 1650 |
Thermal Properties
| Latent Heat of Fusion, J/g | 230 | |
| 320 |
| Melting Completion (Liquidus), °C | 990 | |
| 1440 |
| Melting Onset (Solidus), °C | 950 | |
| 1320 |
| Specific Heat Capacity, J/kg-K | 440 | |
| 440 |
| Thermal Conductivity, W/m-K | 12 | |
| 11 |
| Thermal Expansion, µm/m-K | 18 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 3.0 | |
| 1.7 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.3 | |
| 1.8 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 26 | |
| 100 |
| Density, g/cm3 | 8.2 | |
| 8.7 |
| Embodied Carbon, kg CO2/kg material | 3.3 | |
| 10 |
| Embodied Energy, MJ/kg | 54 | |
| 140 |
| Embodied Water, L/kg | 360 | |
| 410 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 | |
| 160 to 320 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 390 | |
| 210 to 5920 |
| Stiffness to Weight: Axial, points | 8.5 | |
| 14 to 15 |
| Stiffness to Weight: Bending, points | 20 | |
| 23 to 24 |
| Strength to Weight: Axial, points | 23 | |
| 29 to 61 |
| Strength to Weight: Bending, points | 21 | |
| 24 to 39 |
| Thermal Diffusivity, mm2/s | 3.3 | |
| 3.0 |
| Thermal Shock Resistance, points | 21 | |
| 23 to 46 |
Alloy Composition
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| Aluminum (Al), % | 7.0 to 8.5 | |
| 0 |
| Boron (B), % | 0 | |
| 0 to 0.015 |
| Carbon (C), % | 0 | |
| 0 to 0.025 |
| Chromium (Cr), % | 0 | |
| 19 to 21 |
| Cobalt (Co), % | 0 | |
| 29.1 to 39 |
| Copper (Cu), % | 71 to 78.5 | |
| 0 |
| Iron (Fe), % | 2.0 to 4.0 | |
| 0 to 1.0 |
| Lead (Pb), % | 0 to 0.030 | |
| 0 |
| Manganese (Mn), % | 11 to 14 | |
| 0 to 0.15 |
| Molybdenum (Mo), % | 0 | |
| 9.0 to 10.5 |
| Nickel (Ni), % | 1.5 to 3.0 | |
| 33 to 37 |
| Phosphorus (P), % | 0 | |
| 0 to 0.015 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 0.15 |
| Sulfur (S), % | 0 | |
| 0 to 0.010 |
| Titanium (Ti), % | 0 | |
| 0 to 1.0 |
| Residuals, % | 0 to 0.5 | |
| 0 |