1.315" NUE J55 TUBING COUPLING


1.315″ NUE J55 API 5CT Tubing Coupling is a threaded connector designed for oilfield tubing strings, compliant with API 5CT standards. It ensures secure and pressure-tight connections in production and injection wells.

Key Features:

  • Size: 1.315 inches (nominal outer diameter of tubing)

  • Grade: J55 (API material grade with a minimum yield strength of 55,000 psi)

  • Thread Type: NUE (Non-Upset External), a standard thread design for tubing connections.

  • Standard: Manufactured to API 5CT specifications for dimensional and mechanical reliability.

  • Application: Used to join tubing segments in oil & gas wells, ensuring smooth flow and structural integrity.

Technical Specifications:

  • Material: Carbon steel (API 5CT J55 compliant)

  • Thread Configuration: API NUE (straight threads, no upset ends)

  • Pressure Rating: Suitable for standard wellbore conditions (varies based on wall thickness).

  • Surface Finish: Typically phosphate-coated or stored with thread protectors to prevent corrosion.



1.315" NUE J55 TUBING COUPLING