Steel Tube Umbilicals

Webco has developed a highly specialized coiled tubing manufacturing capability to serve the steel tube umbilical (STU) industry. This capability resides within a fit-for-purpose tube making facility located in Kellyville, Oklahoma, just outside Tulsa (USA). Webco’s LaserLine SD® seam welded super duplex umbilical tubing is a high strength product used in the construction of subsea umbilicals. STUs are used to control and monitor the various functions associated with managing subsea oil and gas wells located on and beneath the seabed.

Webco’s LaserLine SD® umbilical tubing is produced in custom lengths per very stringent manufacturing, inspection, and testing requirements in order to satisfy the umbilical makers’ and/or the oil and gas operators’ specifications. Webco’s umbilical tube manufacturing process includes the capability to produce the most common ID bore sizes (12.7, 19.05 and 25.4 millimeters) in DWP ratings of 5KSI, 10KSI and 15KSI DWP ratings. Other sizes are available.

Our coiled tubing capabilities/processes include:

  • Customized project-specific PITPs (Production, Inspection & Testing Plan) meeting customer/client requirements and complying with API17E / ISO 13628-5
  • Customer-approved WPS/PQR practices for bias strip, longitudinal and tube-to-tube orbital welding methods in tube construction
  • Digital radiography of all transverse welds in the final tube
  • State-of-the-art eddy current and ultrasonic testing for full body continuous flaw and sigma phase detection and wall thickness verification
  • Qualification, in-process and final testing as well as in-process and FAT hydro-testing capability up to 30KSI (207 MPa) at in-house metallurgical laboratory
  • Coil lengths provided on customer supplied metal reels up to 20 tonnes
  • Complete genealogical documentation, material test reports and data books per order and reel


Our Products

Find additional information related to this Webco product line. If these resources do not deliver the details that you need, please contact us. Even if the tube product that you require is not listed here, we often can supply you with a solution. Webco develops custom tubing with many of its customers for a wide range of requirements in a variety of industries, delivered when they need it most.

Coiled Tubing
Nickel Alloys
Specialty Alloys
Stainless Tubing
Welded Tubing

Industries & Applications

Upstream Oil & Gas

Webco: Creating Value

Delivering superior tube products requires innovative equipment and know-how. Webco gets the details right, developing tubular products with precision dimensional and straightness tolerances in a range of surface finish options.

Custom Mill Lengths
Custom Packaging
EDI (Electronic Data Interchange)
Extensive Partner Network
Information Technology Solutions
KanBan/JIT/Vendor-Managed Inventory
Product Availability
Supply Chain
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Find additional information about Webco products and services ranging from technical expertise to logistics, specifications, and other important information below. If you still can't find the information that you need, please contact us, and we will help you find a solution to the job at hand.

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