Inconel 718, a large strength, thermal resistant nickel alloy, is primarily used in the aircraft industries. It is a precipitation hardening alloy that keeps its resistance, strength, oxidation, and ductility while in the most extreme environments. This performance must be kept constant during long periods at high temperatures, which is fulfilled by the Inconel series. It is used in many industries for their critical applications including aerospace and oil and gas.
Inconel 718 has beneficial protection to atmospheric decay and corrosion at climates within the nickel alloys strength space. It has somewhat favorable weldability, formability, and exceptional low temperature properties comparable to other PH nickel alloys.
Inconel 718 requires particular heat treatment solutions, hinging on what the intended final need is for the component – the approach is particular for either attaining the greatest flex/tensile strength and force-fracture properties for extreme temperature operations, or for augmenting the benefits for use at room or freezing temperatures. The 3 main conditions of Inconel 718 are AMS 5662, AMS 5663, and NACE MR0175/0103. AMS 5662 is considered the annealed condition and is the precursor to AMS 5663. Inconel 718 NACE calls out for a different chemistry and a hardness range set from 32 – 40 HRC. Each condition has specific uses depending on the application.
|AMS5663||185KSI||150KSI||12%||15%||331 BHN min|