Inconel Seamless Tube Manufacturer

We, Zhejiang Xintongda Special Steel (XTD), are a reputable Inconel seamless tube supplier and manufacturer in China since 1985. This tube is a nickel-chromium-based superalloy. It is designed to stay strong even in very hot or corrosive conditions. A seamless Inconel tube is produced without any weld seam. This makes it a single, solid piece of metal tubing, which offers superior strength, a leak-proof design, and higher pressure resistance. In critical, high-risk environments, this tube is preferred because there is no weld line that could fail under stress. We offer different grades of Inconel tubes at XTD, such as 600, 601, 625, and 718. These have a high nickel content, which makes them last longer. Our tubes are crucial for marine engineering, aerospace, and chemical processing. We are Multiple international certified manufacturer and offer wholesale Inconel tubing products at factory prices. Our annual supply capacity is 25,000 tons. The minimum order quantity (MOQ) for stock orders of our Inconel tubes is 200 kg, with delivery within 7 days.

Our tubes meet the following specifications:

  • Range Icon OD Range 6-457 mm
  • Thickness Icon Thickness 1-65 mm
  • Length Icon Length ≤ 22 m
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inconel seamless tube

What is Inconel Seamless Tube?

An Inconel seamless tube is a high-strength tubular product made from nickel, chromium, molybdenum, and iron with added elements like niobium, titanium and aluminium. The absence of a longitudinal seam provides a smooth internal surface and uniform wall thickness. It is highly resistant to scaling and oxidation, and remains stable at elevated temperatures.

How are Inconel Seamless Tubes Manufactured?

The seamless tube manufacturing process begins by heating a solid round billet. We use an extrusion method where the hot metal is pierced through the center to create a hollow shell. This production process ensures the tube is made without seams. This is followed by cold drawing to achieve the final dimensions. Learn about the detailed manufacturing of seamless tubes by referring to this page.

What are the different grades of Inconel Seamless Tubes?

We provide these common grades of Inconel at XTD:

01

Inconel 600 Seamless Tube

This grade is suitable for the furnace industry and chemical processing. It handles high temperatures well and resists chloride-ion stress corrosion cracking.
02

Inconel 601 Seamless Tube

Inconel 601, commonly known as Pyromet 601 and Nicrofer 601, has an added aluminium to resist high-temperature oxidation. It is widely used in thermal processing equipment and exhaust systems.
03

Inconel 625 Seamless Tube

The Inconel 625 seamless tube has approximately 8-10% molybdenum and 3-4% niobium, which helps it prevent pitting and crevice corrosion. It is mainly found in marine hardware and offshore oil & gas pipes.
04

Inconel 718 Seamless Tube

This is a high-strength, precipitation-hardened grade used primarily in aerospace. It maintains its mechanical properties even at extreme temperatures up to approximately 700°C.

Buy Inconel Seamless Tubing from XINTONGDA

  • EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC)
  • Raw Materials Certificate
  • 100% PMI
  • Heat Treatment Charts
  • Third-Party Inspection Report
  • Surface roughness and size measurement
  • Manufacturer Test Certificate (Impact Testing, Flattening, Flare, Bend, Hardness, Intergranular, Pitting Corrosion, Grain size, ET, UT, HT)
  • Laboratory Test Certificate from the Government-Approved Lab

Frequently Asked Questions

  • What standards do Inconel seamless tubes follow?
    Inconel seamless tubes follow various standards, depending on the Inconel grades. Inconel 600 meets the ASTM B163 and ASTM B167 standards. Inconel 601 tubes follow the ASTM B167 standard, Inconel 625 seamless tubes adhere to the ASTM B444 standard, and Inconel 718 seamless tubes comply with the ASTM B983 standard.
  • Why source Inconel seamless tubes from XTD?
    We, at XTD, are a reputable China-based manufacturer and supplier of Inconel seamless tubes. Our 4 decades of experience allow us to deliver high-quality tubes for demanding industries. We are Multiple international certified manufacturer and have a production capacity of 25,000 tons. We ship stock orders within a week and production orders within 15 to 60 days.
  • Do you also provide Inconel welded tubes?
    No, we do not provide Inconel welded tubes at XTD. We specialise in the manufacturing and production of Inconel seamless tubes.​
  • What industries use Inconel seamless tubes?
    The industries that use Inconel seamless tubes, include aerospace, chemical processing, and power generation. They suit high-temperature and corrosive settings.
  • What properties make Inconel suitable for seamless tubes?
    The properties that make Inconel suitable for seamless tubes are excellent corrosion resistance, high strength and heat tolerance. These traits work well for seamless forms in tough conditions.
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