Alloy 718 (UNS N07718/2.4668) is a versatile nickel-chromium alloy known for its high strength and excellent corrosion resistance, making it suitable for use in a variety of hollow structural profiles. The following are some applications of hollow structural profiles made of Alloy 718:

Nuclear Power Plant: – Control rod: The control rod can be a hollow profile, which regulates the fission process and requires high strength and corrosion resistance.
– Heat exchanger: The hollow tubes in the heat exchanger provide highly efficient heat transfer while being corrosion-resistant.

Aerospace Industry: – Aircraft components: used for lightweight structural components that require a high strength-to-weight ratio, such as frames and support structures.
– Engine Parts: Hollow profiles are used in various engine parts to reduce weight while maintaining structural integrity.

Oil and Gas Industry: – Subsea equipment: Hollow pipes and pipes are critical for transporting fluids under high pressures and extreme conditions.
– Downhole tubing: used in downhole applications where strength and corrosion resistance are critical.

Chemical Processing: – Piping systems: Hollow profiles are used in pipes carrying corrosive chemicals at high temperatures.
– Pressure vessels: Hollow profiles are used to construct pressure vessels that need to withstand high pressures and corrosive environments.

Structural Support: – Frames: Hollow structural profiles can be used to build frames and supports for various infrastructures, providing strength and stability.
– Bracing Systems: Used in bracing applications to enhance structural integrity while minimizing weight.

– Weight efficiency: Hollow profiles provide high strength while reducing overall weight, benefiting many engineering applications.
– Corrosion resistance: Excellent resistance to pitting corrosion and stress corrosion cracking, ensuring service life in harsh environments.
– Versatile manufacturing: Can be easily welded and formed into various shapes to enable customized designs.

– Cost: Alloy 718 is more expensive than standard materials, so its use should be justified based on performance requirements.
– Welding techniques: Specific welding procedures are required to ensure integrity and avoid problems such as hot cracking.