This article introduces "Inconel," a material considered difficult to machine. Inconel is a type of alloy used under high temperature and pressure conditions, known for its extreme hardness and challenging machinability. However, its hardness and durability under high temperature and pressure make it widely used in aircraft, nuclear power plants, and chemical plants. There are various types of Inconel, each with different properties and applications. This article aims to be useful for those in the machining industry who face daily challenges with machining defects.
As mentioned earlier, there are various types of Inconel, each with different properties and applications. The table below can serve as a reference for the characteristics and mechanical properties of each type.
| Mechanical Properties | Inconel 600 | Inconel 718 | Inconel 825 | Inconel X-750 |
|---|---|---|---|---|
| Magnetism | Weak | Weak | Strong | Weak |
| Electrical Resistance (μΩ·cm) | 108 | 127 | 128 | 117 |
| Density (g/cm-3) | 8.47 | 8.19 | 8.14 | 8.28 |
| Brinell Hardness | 170 | 331 | 174 | 277 |
| Melting Point (°C) | 1,370 | 1,293 | 1,420 | 1,390 |
| Modulus of Elasticity (GPa) | 208 | 190 | 190 | 221 |
| Coefficient of Thermal Expansion (20°C-1000°C) (x10-6 K-1) | 13.3 | 13.9 | 13.3 | 関連のあるコラム記事 |
