API 5CT Standard Coupling & Crossover in J55 EUE Thread

We offer a size range of 2-3/8", 2-7/8", 3-1/2", 4" and 4-1/2" in grades J55, K55, N80, P110. All of our couplings meet API specification 5CT/5B.

Couplings are short lengths of pipe used to connect 2 joints of pipe or casing. They come with a color code painted on the outside surface to indicate their grade.

API EUE pipe coupling

Made of good seamless steel according to API 5CT/5B design. EUE petroleum pipe fittings cover OD from 77.80mm to 141.30mm, i.e. larger than the OD of non-upset threaded end products. API External-Upset End (EUE) pipe connection is widely used as it is a good, serviceable connection in most wells. EUE fittings have a design joint strength greater than the pipe body in terms of tensile and compressive strength and are therefore considered to be 100% joint-effective connections.