USAI Forge is Licensed under API Specification 5CT for the manufacture of Casing and Tubing Couplings. The License covers the Groups C-110, PSL 1, C90, PSL 3, H40, PSL 1, - J55, PSL 3, - K55, PSL 3, - L80(1), PSL 3, - L80(13Cr), PSL 3, - L80(9Cr), PSL 1, - N80(1), PSL 2, - N80(Q), PSL 3, - P110, PSL 3, - Q125, PSL 3, - R95, PSL 3, - T95, PSL 1: Pipe Threader


USAI Forge can meet the Product Specification Levels PSL 1, PSL 2 and PSL 3.

Couplings are manufactured from Coupling Blanks made from Seamless Coupling Stock material meeting the requirements of the API Specifications 5CT. Casing Couplings include Short Round Thread (SC)/ Long Round Thread (LC) or Buttress Thread (BC) in the size range 4 1/2” OD to 13 3/8” OD Casing. Tubing Couplings include Non Upset Thread (NU) and External Upset Thread (EU) in the size range 2 3/8” OD to 4 1/2” Tubing. Regular Couplings, Special Clearance Couplings and Special Bevel Couplings can be provided.

The Coupling threads, gauging practice, and thread inspection conform to the requirements of the API Specification 5B. All finished Couplings shall be free from all imperfections that break the continuity of the thread and are inspected on the outside and inside surfaces after finish machining and before any inside or outside surface plating, using the wet magnetic particle method.