Inconel N07718 cold worked seamless pipe
Gnee Steel
Inconel N07718 cold worked seamless pipe
Inconel N07718 (or Alloy 718/UNS N07718) is a precipitation-hardening nickel-chromium alloy prized for its high strength at elevated temperatures (up to 1300°F/700°C), excellent corrosion and oxidation resistance, and good weldability. Cold-finished seamless tubing exhibits enhanced mechanical properties, such as higher tensile strength and hardness, resulting from the cold working process. This makes it an ideal choice for demanding applications in aerospace, gas turbines, and oil and gas, where high-stress, high-pressure, and corrosive environments are common.
Gnee Steel
Where is Inconel 718 used?
Inconel 718 alloy applications
Oil and gas: Downhole tools, wellhead equipment, blowout preventer components, valves, and components exposed to sour gas (H₂S) environments. Chemical processing: Reactors, heat exchangers, pump casings, and internal components of pressure vessels used in corrosive and high-temperature environments.
INCONEL 718 Cold Finished Pipe Equivalent Grade
| STANDARD | WERKSTOFF NR. | UNS |
| Inconel 718 | 2.4668 | N07718 |
Chemical composition of Inconel N07718 seamless pipe
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr |
| Inconel 718 | 0.08 max | 0.35 max | 0.35 max | 0.015 max | 0.30 max | - | 50.00 - 55.00 | 17.00 - 21.00 |
Mechanical properties of Inconel N07718 cold worked seamless pipe
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Inconel 718 | 8.2 g/cm3 | 1350 °C (2460 °F) | Psi – 1,35,000 , MPa – 930 | Psi – 75,000 , MPa – 482 | 45 % |
Key Features
High Strength and Toughness: The cold working process further enhances the tensile and yield strength of the already excellent Inconel 718 alloy.
High-Temperature Performance: It maintains excellent mechanical strength and stability at elevated temperatures and is resistant to creep rupture.
Corrosion Resistance: Inconel 718 offers excellent resistance to pitting, stress corrosion cracking, and general corrosion in a wide range of corrosive environments.
Weldability: The alloy is easily welded without requiring lengthy heating and cooling cycles, a key advantage in manufacturing.
Low Magnetic Permeability: It is non-magnetic, which is beneficial in certain sensitive applications.
Seamless Cold Working Process
Seamless: Seamless pipe is drawn from a single billet, resulting in excellent dimensional accuracy and low surface roughness.
Cold Working: A cold drawing process is used to achieve desired dimensions, reduce friction, and improve the pipe's mechanical properties, such as strength and hardness.
Key Applications
Aerospace: It is the material of choice for aircraft engine components and other high-stress aerospace applications. Gas turbine components: Its excellent high-temperature strength and durability make it suitable for gas turbine operation.
Oil and gas industry: Its corrosion resistance allows it to be used in pumps, valves, and process control equipment.
Other high-stress industries: Its versatility allows it to be used in demanding, corrosive, and high-pressure environments where reliable performance is critical.
Gnee Steel specializes in the production and sale of various nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel Alloy 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy Alloy 800, Incoloy 800H/HT, Incoloy 825, Monel Alloy 400, Monel K500, and high-temperature alloys. Gnee Steel's products are widely used in aerospace, chemical, electric power, automotive, and nuclear energy applications. We also offer customized alloy solutions tailored to customer needs. For alloy pricing inquiries or customized alloy solutions, please contact us for a quote at ss@gneesteel.com.
