Inconel 718 tubing is a highly favored material for extreme operating conditions. Renowned for its exceptional strength, excellent corrosion resistance, and high-temperature integrity, Inconel 718 tubing has become an indispensable material in industries such as aerospace, oil and gas, and power generation. This nickel-based superalloy is designed to provide high performance for harsh environments where other materials struggle. This article will delve into the properties, advantages, and applications of Inconel 718 tubing across various industries.
Advantages and specifications of Inconel 718 pipe
Advantages and specifications of Inconel 718 pipe
Inconel 718 tubing is a high-strength, corrosion-resistant nickel-chromium-molybdenum superalloy (typically UNS N07718) ideal for extreme environments ranging from low temperatures to 704°C (1300°F). Its exceptional tensile strength, yield strength, and creep rupture strength, along with excellent fatigue resistance, make it ideal for high-pressure, high-temperature, and corrosive applications in industries such as aerospace, oil and gas, and power generation.
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.
What is Inconel 718 Pipes & Tubes?
Inconel 718 tubing is primarily composed of a nickel-chromium-iron alloy, manufactured using an age-hardening process. In addition to molybdenum, titanium, niobium, and aluminum, it contains significant amounts of molybdenum, titanium, and niobium. This material combines corrosion resistance with extremely high strength.
Inconel 718 tubing exhibits excellent creep rupture and yield strength at temperatures up to 1300 degrees Fahrenheit (approximately 700 degrees Celsius), and oxidation resistance up to 1800 degrees Fahrenheit (approximately 980 degrees Celsius). Inconel 718 tubing is used to manufacture high-strength components such as jet engine blades, hubs, gaskets, and fasteners designed to withstand high temperatures.
Advantages of Inconel 718 Tubing
Excellent 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 requiring materials to 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 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: Inconel 718 maintains its integrity and is not easily deformed under high stress conditions. This property 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 is relatively easy to weld and machine. This ease of machining allows for the manufacture 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 enhances its resistance to pitting and crevice corrosion. This property is particularly important in seawater or other chloride-containing 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 |
Equivalent Grades Of Inconel 718 Pipes
| Grade | UNS | DIN | AFNOR | EN | JIS | BS | GOST | OR |
|---|---|---|---|---|---|---|---|---|
| Inconel 718 | N06718 | 2.4856 | NC22DNB4M | NiCr22Mo9Nb | NCF 718 | NA 21 | ХН75МБТЮ | ЭИ602 |
Chemical Composition Of Inconel 718 Tubes
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr |
|---|---|---|---|---|---|---|---|---|
| 718 | 0.10 | 0.50 | 0.50 | 0.015 | - | 5.0 | 58.0 min | - |
Mechanical Properties Of Inconel 718 Pipe
| Grade | Density | Melting Point | Yield Strength (0.2%) Offset | Tensile Strength | Elongation |
|---|---|---|---|---|---|
| 718 | 8.4 g/cm3 | 1350 °C (2460 °F) | Psi - 75,000 , MPa - 517 | Psi - 1,35,000 , MPa -930 | 42.5 % |
Gnee Steel also supplies custom Inconel 718 pipes in various sizes and specifications. Please send us your drawings for a quote!
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 ss@gneemetal.com for a quote.
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