Nickel 684 vs. C68700 Brass
Nickel 684 belongs to the nickel alloys classification, while C68700 brass belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.
For each property being compared, the top bar is nickel 684 and the bottom bar is C68700 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 110 |
| Poisson's Ratio | 0.29 | |
| 0.32 |
| Shear Modulus, GPa | 76 | |
| 41 |
| Tensile Strength: Ultimate (UTS), MPa | 1190 | |
| 390 |
| Tensile Strength: Yield (Proof), MPa | 800 | |
| 140 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 190 |
| Maximum Temperature: Mechanical, °C | 1000 | |
| 160 |
| Melting Completion (Liquidus), °C | 1370 | |
| 970 |
| Melting Onset (Solidus), °C | 1320 | |
| 930 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 400 |
| Thermal Expansion, µm/m-K | 13 | |
| 19 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 75 | |
| 26 |
| Density, g/cm3 | 8.3 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 10 | |
| 2.8 |
| Embodied Energy, MJ/kg | 140 | |
| 46 |
| Embodied Water, L/kg | 360 | |
| 340 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1610 | |
| 90 |
| Stiffness to Weight: Axial, points | 13 | |
| 7.3 |
| Stiffness to Weight: Bending, points | 23 | |
| 19 |
| Strength to Weight: Axial, points | 40 | |
| 13 |
| Strength to Weight: Bending, points | 30 | |
| 14 |
| Thermal Shock Resistance, points | 34 | |
| 13 |
Alloy Composition
| Aluminum (Al), % | 2.5 to 3.3 | |
| 1.8 to 2.5 |
| Arsenic (As), % | 0 | |
| 0.020 to 0.1 |
| Boron (B), % | 0.0030 to 0.010 | |
| 0 |
| Carbon (C), % | 0 to 0.15 | |
| 0 |
| Chromium (Cr), % | 15 to 20 | |
| 0 |
| Cobalt (Co), % | 13 to 20 | |
| 0 |
| Copper (Cu), % | 0 to 0.15 | |
| 76 to 79 |
| Iron (Fe), % | 0 to 4.0 | |
| 0 to 0.060 |
| Lead (Pb), % | 0 | |
| 0 to 0.070 |
| Manganese (Mn), % | 0 to 0.75 | |
| 0 |
| Molybdenum (Mo), % | 3.0 to 5.0 | |
| 0 |
| Nickel (Ni), % | 42.7 to 64 | |
| 0 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0 |
| Silicon (Si), % | 0 to 0.75 | |
| 0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 |
| Titanium (Ti), % | 2.5 to 3.3 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 17.8 to 22.2 |
| Residuals, % | 0 | |
| 0 to 0.5 |