7-5/8 BTC CASING COUPLING L80 GRADE


7-5/8″ BTC L80 API 5CT Casing Coupling is a high-strength threaded connector designed for oil and gas casing strings, compliant with API 5CT standards. It provides a secure, pressure-resistant connection for demanding well conditions.

Key Features:

  • Size: 7-5/8 inches (nominal outer diameter)

  • Grade: L80 (API high-grade steel with 80,000 psi minimum yield strength, suitable for sour service if specified)

  • Thread Type: BTC (Buttress Thread Casing) – A robust, trapezoidal thread profile designed for high tensile and compressive loads.

  • Standard: Manufactured to API 5CT specifications, ensuring dimensional accuracy and performance reliability.

  • Application: Used to connect casing pipes in drilling and completion operations, ensuring well integrity under high-pressure and corrosive environments.

Technical Specifications:

  • Material: High-strength carbon or alloy steel (API 5CT L80 compliant)

  • Thread Configuration: API BTC (Buttress) for superior load-bearing capacity.

  • Pressure & Load Rating: Suitable for medium to high-pressure wells (exact rating depends on wall thickness and well conditions).

  • Surface Treatment: Typically coated with anti-corrosion compounds or stored with thread protectors.

  • Optional: Can be supplied with sour service (L80-1) or non-sour service (L80-9) certification if required.



7-5/8 BTC CASING COUPLING L80 GRADE