C68700 Brass vs. Nickel 685
C68700 brass belongs to the copper alloys classification, while nickel 685 belongs to the nickel alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is C68700 brass and the bottom bar is nickel 685.
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 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 390 | |
| 1250 |
| Tensile Strength: Yield (Proof), MPa | 140 | |
| 850 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 320 |
| Maximum Temperature: Mechanical, °C | 160 | |
| 1000 |
| Melting Completion (Liquidus), °C | 970 | |
| 1380 |
| Melting Onset (Solidus), °C | 930 | |
| 1330 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 460 |
| Thermal Conductivity, W/m-K | 100 | |
| 13 |
| Thermal Expansion, µm/m-K | 19 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 26 | |
| 75 |
| Density, g/cm3 | 8.3 | |
| 8.4 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 10 |
| Embodied Energy, MJ/kg | 46 | |
| 140 |
| Embodied Water, L/kg | 340 | |
| 340 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 90 | |
| 1820 |
| Stiffness to Weight: Axial, points | 7.3 | |
| 13 |
| Stiffness to Weight: Bending, points | 19 | |
| 23 |
| Strength to Weight: Axial, points | 13 | |
| 42 |
| Strength to Weight: Bending, points | 14 | |
| 31 |
| Thermal Diffusivity, mm2/s | 30 | |
| 3.3 |
| Thermal Shock Resistance, points | 13 | |
| 37 |
Alloy Composition
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| Aluminum (Al), % | 1.8 to 2.5 | |
| 1.2 to 1.6 |
| Arsenic (As), % | 0.020 to 0.1 | |
| 0 |
| Boron (B), % | 0 | |
| 0.0030 to 0.010 |
| Carbon (C), % | 0 | |
| 0.030 to 0.1 |
| Chromium (Cr), % | 0 | |
| 18 to 21 |
| Cobalt (Co), % | 0 | |
| 12 to 15 |
| Copper (Cu), % | 76 to 79 | |
| 0 to 0.5 |
| Iron (Fe), % | 0 to 0.060 | |
| 0 to 2.0 |
| Lead (Pb), % | 0 to 0.070 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 3.5 to 5.0 |
| Nickel (Ni), % | 0 | |
| 49.6 to 62.5 |
| Phosphorus (P), % | 0 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Titanium (Ti), % | 0 | |
| 2.8 to 3.3 |
| Zinc (Zn), % | 17.8 to 22.2 | |
| 0.020 to 0.12 |
| Residuals, % | 0 to 0.5 | |
| 0 |