Inconel Alloy 718 is an age-hardenable nickel-iron-chromium-columbium-molybdenum-titanium-aluminum alloy designed to display exceptionally high yield,
tensile and creep-rupture properties at temperatures up to 1300°F (704°C).
It has higher strength than Inconel X-750 and better mechanical properties at lower temperatures than Nimonic 90 and Inconel X-750.
The age-hardening response of Alloy 718 permits annealing and welding without spontaneous hardening during heating and cooling. Inconel Alloy 718 has
excellent weldability when compared to the nickel-base super alloys hardened by aluminum and titanium.
Key Features
- Excellent corrosion resistance
- Resistant to chloride stress corrosion
- Resistant to sulphide stress cracking
- High fatigue strength in seawater
- Corrosion Resistant at Ambient Temperatures
- Corrosion Resistant at Elevated Temperatures
- Good Mechanical Properties at Elevated Temperatures
- Low magnetic permeability
- Higher strength than Inconel X-750
- Better mechanical properties at lower temperatures than Nimonic 90 & Inconel X750
Specifications, Cross Reference
- UNS N07718
- AWS 013
- W.Nr. 2.4668
- ASTM B637
- SAE AMS 5832
- NACE MRO175
- ISO 15156
- AMS 5589
- AMS 5590
- AMS 5596
- AMS 5597
- AMS 5662
- AMS 5663
- AMS 5664
- AMS 5832
- ASTM B637
- ASTM B670
- DIN 2.4668
- DIN 2.4688
- GE B14H89
- GE B50 TF14
- GE B50 TF69
- GE B50TF14
- GE B50TF15
- PWA 1009
- PWA 1010
- PWA 1033
- RBO 170-153
- SPS M275
- SPS M637
- UNS N07718
Common Trade Names
- Altemp 718
- HAYNES 718 alloy
- Nicrofer 5219 Nb
- Pyromet Alloy 718
- Pyrotool Alloy 7
- Udimet 718
- Allvac 718