Gnee Steel is one of China's leading manufacturers and suppliers of Inconel 718 pipes, offering high-quality Inconel 718 pipe products, including nickel alloy 718 pipes, seamless nickel alloy UNS N07718 pipes, and welded nickel alloy UNS N07718 pipes. In China, you can purchase Inconel pipes at the best prices.
Advantages and specifications of Inconel 718 pipe

Advantages and specifications of Inconel 718 pipe
Inconel 718 tubing is a high-strength, precipitation-hardening nickel-chromium-niobium alloy (UNS NO7718) renowned for its superior performance in extreme environments. Its key advantages include excellent tensile/creep strength up to 700°C (1290°F), high corrosion resistance, oxidation resistance, fatigue resistance, and excellent weldability. It is widely used in the aerospace and high-temperature industries.
What are the advantages of Inconel 718?
Inconel 718 is a high-strength, corrosion-resistant nickel-based superalloy. It possesses excellent mechanical properties, high-temperature strength, and resistance to oxidation and corrosion. Inconel 718 is widely used in various industries, including aerospace, oil and gas, automotive, and power generation.


Inconel 718 seamless tubes are designed for harsh environments requiring high strength, corrosion resistance, and dimensional accuracy. Our tubes are manufactured using controlled extrusion, rotary punching, or hot rolling processes, with no weld joints, ensuring consistent shape and extremely small tolerances. They are made from a nickel-chromium-iron alloy, reinforced with molybdenum, niobium, and titanium. Inconel 718 exhibits high fracture toughness, remains stable at temperatures up to 1300°F (700°C), and has oxidation resistance up to 1800°F (980°C). This material resists pitting, acidic media, alkaline environments, and erosion, making it ideal for industries such as aerospace, energy, oil, gas, and chemicals.
Gnee Steel, as a manufacturer of Inconel 718 tubes, offers tubes conforming to ASTM B983 and ASME standards. Our tubes are available in polished, pickled, or rolled raw finishes, and in both imperial and metric sizes. We rigorously control Rockwell hardness, elongation, and tempering conditions to ensure stable mechanical properties. We have an annual production capacity of 25,000 tons and are certified to meet global quality standards. We supply DIN 2.4668 pipes, with short lead times for in-stock products and flexible minimum order quantity options. In addition, we also produce Inconel 625 pipes suitable for corrosive and high-temperature environments.

Specification Of Inconel 718 Pipes
| Specifications : | ASTM B163, B167, B444, B704 / ASME SB163, SB167, SB444, SB704 |
|---|---|
| Seamless Size : | 1 / 8" NB - 24" NB |
| ERW Size : | 1 / 8" NB - 36" NB |
| EFW Size : | 6" NB - 100" NB |
| Outer Diameter : | 6.00 mm OD up to 914.4 mm OD, Sizes up to 24" NB |
| Length : | Single Random, Double Random & Required Length |
| Schedule : | SCH20, SCH30, SCH20, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Types : | Seamless / ERW / EFW / Welded / Fabricated / LSAW Pipes |
| Form : | Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, "U" Shape, Pan Cake Coils, Hydraulic Tubes |
Advantages of Inconel 718 Tubing
Superior Corrosion and Oxidation Resistance: One of the most significant advantages of Inconel 718 tubing is its exceptional strength, maintaining its strength even at high temperatures. This characteristic is crucial for applications where materials must withstand high temperatures and stresses, such as jet engines and gas turbines. The alloy's strength stems from its unique chemical composition and precipitation hardening process, giving it excellent resistance to mechanical deformation.
Superior Corrosion Resistance: Inconel 718 alloy tubing exhibits excellent resistance to oxidation, pitting, and crevice corrosion, even in harsh environments containing chlorides, sulfides, and other corrosive chemicals. This makes it ideal for the chemical, marine, and oil and gas industries, where materials are frequently exposed to corrosive substances.
Creep and Stress Fracture Resistance: Inconel 718 tubing exhibits excellent creep and stress fracture resistance at high temperatures. This characteristic is crucial in applications such as power plants and aerospace engines where materials must withstand long-term high temperatures and pressures. The alloy's ability to withstand these conditions ensures a long service life and high reliability.
High-Temperature Deformation Resistance: Alloy 718 tubing maintains its integrity and is not easily deformed under high stress conditions. This characteristic is particularly advantageous in high-temperature and high-pressure applications such as nuclear reactors or aerospace components.
Ease of Machining: Despite its high strength and toughness, Inconel 718 tubing is relatively easy to weld and machine. This ease of machining allows for the creation of complex shapes and structures to meet the specific needs of various industrial applications.
Resistance to Pitting and Crevice Corrosion: The presence of molybdenum and niobium in Inconel 718 tubing enhances its resistance to pitting and crevice corrosion. This characteristic is particularly important in seawater or other chloride-containing environments.
Gnee Steel is one of China's leading manufacturers of Inconel 718 seamless steel pipes, offering products that meet stringent international standards, including UNS N07718, DIN 2.4668, BS NA51, EN 2.4668, and AFNOR NC19FeNb. In different regions, Inconel 718 steel pipes are also known as nickel alloy 718 steel pipes, alloy 718 seamless pipes, super alloy 718 steel pipes, and high-temperature alloy 718 steel pipes. This allows global buyers to easily meet their specific needs. Please contact us for a quote if you have any requirements.

About Gnee Steel
Gnee Steel is a professional manufacturer of nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy 800, Incoloy 800H/HT, Incoloy 825, Monel 400, Monel K500, and other high-temperature alloy materials. We specialize in the production and sales of alloy materials. Gnee Steel's products are widely used in aerospace, chemical, power generation, automotive, nuclear energy, and other fields, and we can provide customized alloy material solutions according to customer needs. For inquiries about alloy material prices or customized alloy material solutions, please feel free to contact us via email at ru@gneesteelgroup.com for a quote.
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