Nickel 684 vs. C68800 Brass
Nickel 684 belongs to the nickel alloys classification, while C68800 brass belongs to the copper alloys. There are 25 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 nickel 684 and the bottom bar is C68800 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 110 |
| Elongation at Break, % | 11 | |
| 2.0 to 36 |
| Poisson's Ratio | 0.29 | |
| 0.32 |
| Shear Modulus, GPa | 76 | |
| 41 |
| Shear Strength, MPa | 710 | |
| 380 to 510 |
| Tensile Strength: Ultimate (UTS), MPa | 1190 | |
| 570 to 890 |
| Tensile Strength: Yield (Proof), MPa | 800 | |
| 390 to 790 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 190 |
| Maximum Temperature: Mechanical, °C | 1000 | |
| 160 |
| Melting Completion (Liquidus), °C | 1370 | |
| 960 |
| Melting Onset (Solidus), °C | 1320 | |
| 950 |
| 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 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 10 | |
| 2.8 |
| Embodied Energy, MJ/kg | 140 | |
| 48 |
| Embodied Water, L/kg | 360 | |
| 350 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 | |
| 16 to 180 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1610 | |
| 710 to 2860 |
| Stiffness to Weight: Axial, points | 13 | |
| 7.3 |
| Stiffness to Weight: Bending, points | 23 | |
| 19 |
| Strength to Weight: Axial, points | 40 | |
| 19 to 30 |
| Strength to Weight: Bending, points | 30 | |
| 19 to 25 |
| Thermal Shock Resistance, points | 34 | |
| 19 to 30 |
Alloy Composition
| Aluminum (Al), % | 2.5 to 3.3 | |
| 3.0 to 3.8 |
| 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 | |
| 0.25 to 0.55 |
| Copper (Cu), % | 0 to 0.15 | |
| 70.8 to 75.5 |
| Iron (Fe), % | 0 to 4.0 | |
| 0 to 0.2 |
| Lead (Pb), % | 0 | |
| 0 to 0.050 |
| 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 | |
| 21.3 to 24.1 |
| Residuals, % | 0 | |
| 0 to 0.5 |