Petroleum pipe 1. O. D: 2-3/8"-20" 2. Grade: J55 K55 N80 P110 ect. 3. Thread: Specail thread. 4. Standard: API 5CT. Petroleum pipe 1. O. D: 2-3/8"-20" 2. Grade: J55 K55 N80 P110 ect. 3. Thread: Specail thread. 4. Standard: API 5CT. The API couplings for tubing and casing pipes Size and Specifications For Tubing and Casing Couplings Descriptions and size Type of Therad O. D*L (mm) Weight (kg) Tubing Coupling 1.050 NUE 33.35*80.96 0.23 1.050 EUE 42.16*82.55 0.38 1.315 NUE 42.16*82.55 0.38 1.315 EUE 48.26*88.90 0.57 1.660 NUE 52.17*88.90 0.59 1.660 EUE 58.88*95.25 0.68 1.900 NUE 55.88*95.25 0.56 1.900 EUE 63.50*98.42 0.84 2-3/8" NUE 73.02*107.95 1.28 2-3/8" EUE 77.80*132.82 1.55 2-7/8" NUE 88.90*130.18 2.34 2-7/8" EUE 93.17*133.35 2.40 3-1/2" NUE 107.95*142.88 3.71 3-1/2" EUE 114.30*146.05 4.10 4" NUE 120.65*146.05 4.35 4" EUE 127.00*152.40 4.82 4-1/2" NUE 132.08*155.58 4.89 4-1/2" EUE 141.30*158.75 6.05 Casing Coupling 4-1/2" STC 127.00*158.75 5.23 4-1/2" LTC 127.00*177.80 4.15 4-1/2" BTC 127.00*225.42 4.55 5" STC 141.30*165.10 4.66 5" LTC 141.30*196.85 5.75 5" BTC 141.30*231.78 5.85 5-1/2" STC 153.67*171.45 5.23 5-1/2" LTC 153.67*203.20 6.42 5-1/2" BTC 153.67*234.95 6.36
