The API couplings for tubing and casing pipes Size and Specifications For Tubing and Casing Couplings Descriptions and size End Type O.D*L Weight Descriptions and size End Type O.D*L Weight (mm) (kg) (mm) (kg) Tubing Coupling 1.050 NUE 33.35*80.96 0.23 Casing Coupling 4-1/2″ STC 127.00*158.75 5.23 1.050 EUE 42.16*82.55 0.38 4-1/2″ LTC 127.00*177.80 4.15 1.315 NUE 42.16*82.55 0.38 4-1/2″ BTC 127.00*225.42 4.55 1.315 EUE 48.26*88.90 0.57 5″ STC 141.30*165.10 4.66 1.660 NUE 52.17*88.90 0.59 5″ LTC 141.30*196.85 5.75 1.660 EUE 58.88*95.25 0.68 5″ BTC 141.30*231.78 […]