Product description OD Standard Length Connection Steel Grade 2 3/8”-4 1/2” API 5CT Customized NUE/EUE J55/K55/N80/L80/P110 4 1/2”-20” API 5CT Customized LTC/STC/BTC J55/K55/N80/L80/P110 API Tubing and Casing Pup Joint Tubing and Casing Pup Joints are machined according to the latest version of API Spec 5CT. It’s used to connect two pipes of same diameter with the same types of thread on the two ends. The Steel Grade includes J55,K55,N80-1, N80Q, L80-1, P110 etc. There are two types of th…