Name:Couplings
Std Ref:API 5CT
Grade:J55,K55,N80,L80,C90,P110 ,Q125

Type: NU, EU; STC,LC,BTC,special clearance

Coupling Manufacturer of Tubing and Casing coupling according to API SPEC 5CT AND 5B API couplings for oil tubing and casing Size and Specifications Descriptions and sizeType of ThreadO.D*L(mm)Weight(kg) Tubing Coupling2-3/8"NUE73.02*107.951.28 2-3/8"EUE77.80*123.821.55 2-7/8"NUE 88.90*130.182.34 2-7/8"EUE93.17*130.352.4 3-1/2"NUE107.95*142.883.17 3-1/2"EUE114.30*146.054.1 4"NUE120.65*146.054.35 4"EUE127.00*152.404.82 4-1/2"NUE132.08*155.584.89 4-1/2"EUE141.30*158.756.05 Casing Coupling4-1/2"STC127.00*158.755.23 4-1/2"LTC127.00*177.804.15 4-1/2"BTC127.00*225.424.55 5"STC141.30*165.104.66 5"LTC141.30*196.855.75 5"BTC141.30*231.785.85 5-1/2"STC153.67*172.455.23 5-1/2"LTC153.67*203.206.42 5-1/2"STC153.67*234.956.36 6-5/8"STC187.71*184.159.12 6-5/8"LTC187.71*222.2511.34 6-5/8"STC187.71*244.4811.01 7"STC194.46*187.158.39 7"LTC194.46*228.6010.83 7"STC194.46*254.0010.54 7-5/8"STC215.90*190.5012.3 7-5/8"LTC215.90*234.9515.63 7-5/8"STC215.90*263.5215.82 8-5/8"STC244.48*196.8516.23 8-5/8"LTC244.48*254.0021.67 8-5/8"STC244.48*269.8820.86 9-5/8"STC269.88*196.8518.63 9-5/8"LTC269.88*266.7025.45 9-5/8"STC269.88*269.8823.16 10-3/4"STC298.45*203.2020.78 10-3/4"STC298.45*269.8825.74 11-3/4"STC323.85*203.2022.64 11-3/4"BTC323.85*269.8828.03 13-3/8"STC365.12*203.2025.66 13-3/8"BTC365.12*269.8831.77 1.Grade:J55, K55, N80-1, N80-Q, L80, C90, P110 2.We also supply permium thread products by customer's request 3.Size: tubing coupling from 1.9" to 4-1/2",Casing coupling fro4-1/2"to 13-3/8" 4.Type: NU, EU(tubing coupling), STC,LC,BTC(casing coupling). 5.Surface treatment: Whole phosphating, or inside phosphating and outside coating 6.Packing: By carton, wooden case, wooden pallet, or by requirements of customers