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| Grade | Code | UNS | Nickel Alloys |
| Inconel 617 | Alloy 617 (2.4663) | N06617 |
Inconel 617 / Alloy 617, a nickel-chromium-cobalt-molybdenum alloy, combines exceptional high-temperature strength with excellent oxidation resistance. It retains mechanical strength and structural stability at elevated temperatures, while forming a protective surface scale in oxidizing atmospheres[cite: 20]. Its strong creep resistance also helps limit deformation during prolonged exposure to high temperature and sustained loading.
| Ni % | Cr % | Co % | Mo % | Mn % | Si % | Al % | Ti % | C % | Fe % | Cu % | S % |
| 44.50 min. | 20.0 – 24.0 | 10.0 – 15.00 | 8.00 – 10.00 | 1.00 max. | 1.00 max. | 0.80 – 1.50 | 0.60 max. | 0.05 – 0.15 | 3.00 max. | 0.50 max. | 0.015 max. |
| Product Form | Rp0.2, MPa | Rm, MPa | Elongation [%] | Hardness [HB] | Density (g/cm³) |
| Round Bar | 318 | 769 | 56 | 181 | 8.36 |
| Plate | 322 | 734 | 62 | 172 | 8.36 |
| Industry / Sector | Products |
| Aerospace and Aircraft Gas Turbines | Combustion chambers, turbine ring components, hot-gas ducting |
| Power Generation and Industrial Gas Turbines | Combustion chamber components, inner housings, turbine rings |
| Heat Treatment and Industrial Furnaces | Furnace muffles, radiant heater tubes, high-temperature furnace components |
| Chemical and Process Industry | High-temperature heat exchangers, valves, process equipment |
| Petrochemical Industry | Pigtail tubes, furnace tubing, high-temperature process components |
Inconel 617 / Alloy 617 is a solid-solution-strengthened nickel-base superalloy with good metallurgical stability and is not precipitation hardenable by conventional aging treatment. In addition to oxidation resistance, its strong resistance to carburization is especially valuable in high-temperature furnace and process atmospheres. For solution-annealed and welded components operating at approximately 550–780 °C, welding procedure and, where appropriate, stabilization heat treatment should be evaluated to reduce susceptibility to relaxation cracking.
INCONEL® Alloy 617, Alloy 617, UNS N06617, W.Nr. 2.4663, DIN EN NiCr23Co12Mo, ISO NiCr22Co12Mo9
| Product Form | ASTM Spec. | AMS Spec. |
| Round Bar | ASTM B166 | AMS 5887 |
| Plate | ASTM B168 | AMS 5888 |
| Sheet | ASTM B168 | AMS 5889 |
Special Metals – INCONEL® Alloy 617
Note: The information contained in this datasheet is for informational purposes only; no liability is accepted.
