Summary of Inconel 617 properties and applications: This alloy demonstrates exceptional corrosion resistance in thermal environments, particularly under oxidative and carbonized conditions with up to 1100℃ cycles. Its superior mechanical properties combined with these corrosion-resistant characteristics make it ideal for high-temperature applications. It exhibits excellent transient and long-term mechanical performance at temperatures exceeding 1100℃. The alloy finds extensive use in industrial and aerospace turbine components, air heaters, muffle furnaces, radiation chambers, high-temperature heat exchangers, valves and springs, as well as nuclear reactor components such as helium/helium medium heat exchangers, chemical equipment, and spiral tubes and pipelines in petrochemical industries.
Inconel 617 Similar grades:
W.Nr.2.4663/NiCr23Co12Mo (Germany)
Inconel 617 metallographic structure:
The alloy has a face-centered cubic grain structure and has good grain stability. Through solid solution hardening, the alloy has excellent high temperature strength and no aging hardening.
Inconel617 Process properties and requirements:
1. The suitable heat treatment temperature of alloy is 1200-950℃, and the cooling method can be water quenching or other rapid cooling methods. The material must be put into the furnace when the highest furnace temperature is reached.
2. The average grain size of the alloy is closely related to the deformation degree and final forging temperature of the forging.
3. Oxides near alloy welds are more difficult to remove than stainless steel. Both mechanical and chemical methods can be employed. When using mechanical methods, precautions must be taken to avoid metal contamination and excessive surface deformation. Before acid washing with a mixed nitric and hydrofluoric acid solution, oxide removal should be performed using sandpaper or salt bath pretreatment.
4. The alloy is suitable for welding, including tungsten electrode arc welding (GTAW/TIG), manual arc welding (GMAW/MIG), pulse arc welding and gas shielded arc welding.
The density of the alloy is ρ=8.36g/cm³.
