Comprehensive specifications for Inconel 718, an age-hardenable nickel-chromium-iron superalloy with exceptional high-temperature strength and excellent fabricability.
Inconel 718 (UNS N07718) is an age-hardenable nickel-chromium-iron superalloy initially developed for aerospace gas turbine applications. It has become the preferred material for oil & gas wellhead components, downhole tools, and sub-surface safety valves.
This superalloy exhibits excellent sub-zero toughness and resistance to hydrogen embrittlement, making it ideal for sour gas service. The alloy can achieve strength levels up to 150 ksi through controlled heat treatment and is approved for NACE MR0175 applications.
| Element | Min % | Max % |
|---|---|---|
| C | - | 0.08 |
| Si | - | 0.35 |
| Mn | - | 0.35 |
| P | - | 0.015 |
| S | - | 0.015 |
| Cr | 17.00 | 21.00 |
| Ni | 50.00 | 55.00 |
| Mo | 2.80 | 3.30 |
| Cu | - | 0.30 |
| Nb/Cb+Ta | 4.75 | 5.50 |
| Ti | 0.65 | 1.15 |
| Al | 0.20 | 0.80 |
| Fe | Balance | Balance |
Exceptional strength and resistance to hydrogen embrittlement in sour environments
Outstanding high-temperature strength and fatigue resistance
Get competitive pricing on high-quality Inconel 718 with complete material certifications, heat treatment services, and fast delivery worldwide.