Inconel® 718 is a precipitation-hardening nickel-chromium alloy containing
significant amounts of iron, columbium, and molybdenum, along with lesser amounts of aluminum and titanium. 718
materials maintain high strength and good ductility up to 1300°F (704°C). This alloy has relatively good
weldability, formability, and excellent cryogenic properties compared to other precipitation hardening nickel
alloys. The sluggish precipitation hardening response of this alloy allows it to be readily welded without hardening
or cracking. Alloy 718 is non-magnetic. It maintains good corrosion resistance and oxidation resistance and is used
for parts requiring high resistance to creep and stress rupture up to 1300°F (704°C) and oxidation resistance up to 1800°F (982°C).
Standard Inventory Specifications
- 718 Sheet, Coil and Plate:
- UNS N07718
- AMS 5596
- ASTM B 670
- ASME SB 670
- B50TF14
- 718 Round Bar:
- UNS N07718
- AMS 5662
- ASTM B 637
- B50TF15
- B50809D (Power Generation)
Other industry standards we comply with:
- PWA-LCS
- DFARS Compliant
- RR SABRe Edition 2
- S1000 / S-SPEC-1
- GE Aviation S-SPEC-35 AeDMS S-400
- EN 2.4668
- EN 10204
Common Trade Names
- Haynes 718 (® Haynes International)
- ATI 718 (™ Allegheny Technologies)
- Inconel Alloy 718 (® Special Metals)
Common Applications of 718
- Jet engine
- Gas turbine operations
- Base plates
- Rotor bolts (Power Generation)