Inconel 718 is a high strength nickel alloy with the capability to be precipitation hardened, which helps keep 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. Inconel 718 bar stock is used in many industries including aerospace, oil and gas, chemical, and valves for critical applications.
INCONEL 718 APPLICATIONS
- Rings
- Fasteners
- Casings
- Instrumentation components
- Nuclear fuel element spacers
- High-strength bolts
Chemical Composition of Inconel 718
Element | |
| Carbon | |
| Manganese | |
| Phosphorus | |
| Sulfur | |
| Silicon | |
| Chromium | |
| Nickel | |
| Molybdenum | |
| Columbium | |
| Titanium | |
| Aluminum | |
| Cobalt | |
| Boron | |
| Copper | |
| Tantalum | |
| Iron |
Mechanical Properties
The room temperature strength of the Inconel 718 alloy is substantially increased by precipitation heat treatment as the following data indicate. These values are properties specified for sheet, strip and plate in AMS 5596 and AMS 5597.
Min (0.2% offset) | Min | (% in 2″) | |
Solution trated plus precipitation heat treated.
Min (0.2% offset) | Min | (% in 2″) |
Typical short time tensile properties of Inconel 718 as a function of temperature are shown here for material solution treated and aged as follows:
- Solution Treatment: 1800°F (982°C) 1 hour
- Precipitation Treatment: 1325°F (718°C) 8 hours, Furnace Cool at 100°F (55°C) per hour to 1150°F (621°C) 8 hours
Partial part type display:
