Home > Products > API 5CT Tubing Casing and Coupling
  1. Sizes: OD 2-3/8” ~ 4-1/2”, 4-1/2” ~ 20”
  2. Grade: H40, J55, K55, N80, L80, C90, T95, P110
  3. Length: R1, R2, R3
  4. Standard : API SPEC 5CT
  5. Application: Tubing is used to extracting petroleum and natural gas from a well.
  6. Packing: Bundle or bulk

API 5CT Tubing Casing and Coupling

Casing Technical Specification (Standard API Spec 5CT)

SIZE OD ID GRADE WALL THICKNESS
in mm in mm in mm
4-1/2” 4.500 114.30 4.000 101.60 J55 k55 N80 0.250 6.35
3.920 99.57 J55 k55 N80 0.290 7.37
5” 5.000 127.00 4.408 111.96 J55 k55 N80 0.296 7.52
4.276 108.61 N80 P110 0.362 9.29
4.126 104.80 N80 P110 0.437 11.10
5-1/2” 5.500 139.70 4.892 124.26 J55 k55 N80 0.304 7.72
4.778 121.36 N80 0.361 9.17
4.670 118.62 N80 0.415 10.54
7” 7.000 177.80 6.366 161.70 J55 k55 N80 0.317 8.05
6.276 159.41 J55 k55 N80 0.362 9.19
6.184 157.07 N80 0.408 10.36
9-5/8” 9.625 244.48 8.755 222.38 N80 0.435 11.05
8.681 222.50 N80 0.472 11.99
10-3/4” 10.750 273.05 10.050 255.27 H40 J55 k55 N80 0.350 8.89
9.850 250.19 J55 k55 N80 0.450 11.43
13-3/8” 13.375 339.72 12.615 320.42 J55 k55 0.380 9.65
12.415 315.34 J55 k55 N80 0.480 12.19

API 5CT Tubing Casing and CouplingAPI 5CT Tubing Casing and Coupling

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