Inconel 718 Welded Pipe Tube (UNS N07718 / W.Nr. 2.4668)
High-strength corrosion-resistant alloy Pipe Tube for oil & gas and aerospace
As a leading Chinese Inconel pipe supplier, SEATHER manufactures high-quality Inconel 718 (UNS N07718 / W.Nr. 2.4668) welded pipe and tube in a wide range of sizes.
INCONEL® alloy 718 is a high-strength, corrosion-resistant nickel-chromium superalloy designed for service from -423°F to 1300°F (-253°C to 704°C). This age-hardenable alloy offers excellent fabricability and can be formed into complex shapes with ease. Its welding performance is exceptional, particularly its resistance to post-weld cracking, making it one of the most reliable materials for high-temperature structural components.
Inconel 718 welded pipe and tube is produced by forming and welding Inconel 718 strip or plate. Therefore, the quality of the raw material is critical to the final product performance. At SEATHER, we source high-purity Inconel 718 from reputable mills and utilize advanced slitting and high-precision welding technology to manufacture every welded pipe and tube with consistent quality.
For applications requiring enhanced mechanical properties, we also provide solution-annealed Inconel 718 welded pipe and tube using our online heat-treatment equipment, ensuring superior strength, stability, and corrosion resistance.
Inconel 718 Welded Pipe Tube Specifications & Srtandard
- OD Range: Φ6 – Φ200mm
- Wall Thickness: Φ0.35 – Φ6mm
- Length: 50mm – 12000mm
- Customized size needs to be confirmed with our team
- Grades: 718 / UNS N07718 / W.Nr. 2.4668
- Standards: ASME SB163
ASTM B163 - Finish: Bright, Polishing, Mirror, Hairline, Pickled, Peeled, Black
- Brand: SEATHER TECHNOLOGY, Special Metals(SMC), HAYNES International, VDM Metals, ATI, etc.
Inconel 718 Welded Pipe Tube (UNS N07718) Applications & Usages
Inconel 718 is widely utilized across the aviation and aerospace industries, where components must perform reliably under extreme temperature and pressure conditions. Engineers choose this superalloy for its exceptional combination of strength, corrosion resistance, and cost-effectiveness, as well as its ability to maintain mechanical integrity in both high and low temperature environments.
In the hottest sections of jet engines, where mechanical and atmospheric stresses are severe, Inconel 718 provides outstanding resistance to oxidation and creep. Typical aerospace applications include jet engine and high-speed airframe components such as discs, fasteners, spacers, rings, bolts, and instrumentation parts.
Beyond aerospace, Inconel 718 is also employed in liquid-fueled rocket components, turbine engine sheet metal parts, and casings for both aircraft and land-based turbines.
At the opposite end of the temperature spectrum, its toughness and stability make it equally suitable for cryogenic storage and tankage applications.
Inconel 718 Welded Pipe Tube (UNS N07718) Drawing & Formula
Formula: m = (OD – THK) × THK (mm) × L (m) × ρ (g/cm³) × π ÷ 1000
OD = Outside Diameter, THK = Wall Thickness, L = Length
ρ = Density, π = 3.1415926…
What is Inconel 718 (UNS N07718)
Inconel 718 is also called UNS N07718 or W.Nr. 2.4668. It is a nickel-chromium-iron-niobium precipitation-strengthened alloy. It can obtain excellent high-temperature strength through heat treatment. Inconel 718 has good corrosion resistance. Its strength makes it stand out among many alloys. Its other properties at high temperatures are also excellent. Inconel 718 alloy is available in customized part, seamless and welded pipe, coil sheet, and bar forms. Below pictures show its chemical composition and standard. Inconel 718 alloy is widely used in aerospace, automotive, oil and gas, marine and other industries. If you need more information and solutions, please kindly visit our website or talk to our experts directly. Seather Technology is your trusted supplier for high-performance alloys. We deliver not only premium-quality materials but also expert technical consultation and global supply chain services.
Inconel 718 Welded Pipe Tube (UNS N07718) Chemical Composition
| Grade | Standard | C | Si | Mn | P | S | Cr | Ni | Ti |
| 718 | ASTM | ≤0.08 | ≤0.35 | ≤0.35 | ≤0.015 | ≤0.015 | 17.00-21.00 | 50.0-55.0 | 0.65-1.15 |
Inconel 718 Welded Pipe Tube (UNS N07718) Mechanical Properties
| Element | Yield Strength (0.2%Offset) | Melting Point | Density | Tensile Strength | Elongation |
| 718 | MPa – 1034 | 1336 °C (2437 °F) | 8.19 g/cm3 | MPa – 1241 | Min 10 % |
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More Information About Inconel 718 Welded Pipe Tube (UNS N07718)
When you choose to buy Inconel 718 welded Pipe Tube (UNS N07718), there have some important points we need to know before we get started.
Pitting resistance equivalency numbers (PREN) for Inconel 718 Welded Pipe Tube (UNS N07718)
Inconel 718 PREN: 29
The pitting resistance equivalency number uses the alloy’s chemical makeup to guess its power against pitting corrosion. You check how much chromium, molybdenum, tungsten, and nitrogen are in the alloy. These elements help keep the steel safe. The most used formula is:
PREN = CR% + 3.3 x (MO% + 0.5 x W%) + 16 x N%How to Purchase Inconel 718 Welded Pipe Tube (UNS N07718)
When purchasing alloy pipe tube, it’s essential to have the right materials and information to ensure a smooth procurement process and to get the products that meet your needs.
Here’s what you need to provide:
1. Material: Specify the grade material, Alloy 718 (UNS N07718)
2. Size: Specify the Outer Diameter, Inner Diameter, Wall thickness, Length, Delivery State, finish, etc.
3. Quantity: Provide the exact number of products required for an accurate quotation.
4. Technical specifications: Include technical specifications and drawings. If there are unique design requirements, detailed drawings can be attached.
5. Quality standards: Specify quality standards and inspection requirements, such as the need for third-party inspection, material certification, and inspection reports.
6. Special requirements: Specify any special surface treatment, polishing, corrosion resistance requirements, etc.
7. Packaging requirements: If there are specific packaging needs, such as protective or anti-corrosion packaging, please specify.
8. Delivery time: Specify the expected delivery time and location.
By preparing the above information, you can streamline the process of purchasing pipe tube and ensure that you receive high-quality products that meet your requirements.
Conclusion
We have introduced our products briefly. If you want to know more about it, you can check the article here Inconel Alloy 718: Composition, Properties and Applications.
If you need to purchase alloy products, please get in touch with us immediately.
Related resources：
https://en.wikipedia.org/wiki/Inconel_718
Trademark Notices:
Inconel®, Incoloy®, and Monel® are registered trademarks of Special Metals Corporation.
Hastelloy® is a registered trademark name of Haynes International, Inc.
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