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API Casing Pipes – Full Ranges of Options for Your Wellbore Projects

API casing pipe is produced according to the API 5CT standard. It is most often used in underground construction projects to encase or protect utility lines from being damaged.

It is widely used in the cementing projects to serve as the structural retainer for the wall of oil and gas wells or wellbore. It is inserted into a well bore and cemented in place to protect both subsurface formations and the wellbore from collapsing and allow drilling fluid to circulate and extraction to take place.

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Several bundles of API J55 casing pipes on white background.

Category

The category of API casing pipe is based on the material and color. The main categories are including H40, J55, K55, N80-1, N80-Q, M65, L80-1, C90-1, T95, P110, Q125.

Grade H40 casing pipes

Grade J55 casing pipes

Grade N80 casing pipes

Grade P110 casing pipes

More casing pipes and their colors

Specifications

  • Material: H40, J55, K55, N80-1, N80-Q, M65, L80-1, C90-1, T95, P110, Q125, etc.
  • Outer diameter: 4-1/2" to 20".
  • WT: 5.21 mm to 16.13 mm (9.5 PPF to 133PPF)
  • Standard: API 5CT.
  • Thread connection: STC, LTC, BTC, XC and Premium connection
  • Length: R1, R2, R3
Popular Specifications of Sucker API Casing Pipe
Sizes OD (mm) Weight (kg/m) WT (mm) Type of End
H40 J55/K55 M65 L80/C95 N80-1/N80-Q C90/T95 P110 Q125
1 2
1 2 3 4 5 6 7 8 9 10 11 12 13
4-1/2 9.5 114.3 14.14 5.21 PS PS PS – – – – –
4-1/2 10.5 114.3 15.63 5.69 – PSB PSB – – – – –
4-1/2 11.6 114.3 17.26 6.35 – PSLB PLB PLB PLB PLB PLB –
4-1/2 13.5 114.3 20.09 7.37 – – PLB PLB PLB PLB PLB –
4-1/2 15.1 114.3 22.47 8.56 – – – – – – PLB PLB
5 11.5 127 17.11 5.59 – PS PS – – – – –
5 13 127 19.35 6.43 – PSLB PSLB – – – – –
5 15 127 22.32 7.52 – PSLBE PLB PLBE PLBE PLBE PLBE –
5 18 127 26.79 9.19 – – PLB PLBE PLBE PLBE PLBE PLBE
5 21.4 127 31.85 11.1 – – PLB PLB PLB PLB PLB PLB
5 23.2 127 34.53 12.14 – – – PLB PLB PLB PLB PLB
5 24.1 127 35.86 12.7 – – – PLB PLB PLB PLB PLB
5-1/2 14 139.7 20.83 6.2 PS PS PS – – – – –
5-1/2 15.5 139.7 23.07 6.98 – PSLBE PSLB – – – – –
5-1/2 17 139.7 25.3 7.72 – PSLBE PLB PLBE PLBE PLBE PLBE –
5-1/2 20 139.7 29.76 9.17 – – PLB PLBE PLBE PLBE PLBE –
5-1/2 23 139.7 34.23 10.54 – – PLB PLBE PLBE PLBE PLBE PLBE
5-1/2 26.8 139.7 39.88 12.7 – – – – – P – –
5-1/2 29.7 139.7 44.2 14.27 – – – – – P – –
5-1/2 32.6 139.7 48.51 15.88 – – – – – P – –
5-1/2 35.3 139.7 52.53 17.45 – – – – – P – –
5-1/2 38 139.7 56.55 19.05 – – – – – P – –
5-1/2 40.5 139.7 60.27 20.62 – – – – – P – –
5-1/2 43.1 139.7 64.14 22.22 – – – – – P – –
6-5/8 20 168.28 29.76 7.32 PS PSLB PSLB – – – – –
6-5/8 24 168.28 35.72 8.94 – PSLBE PLB PLBE PLBE PLBE PLBE –
6-5/8 28 168.28 41.67 10.59 – – PLB PLBE PLBE PLBE PLBE –
6-5/8 32 168.28 47.62 12.06 – – – PLBE PLBE PLBE PLBE PLBE
7 17 177.8 25.3 5.87 PS – – – – – – –
7 20 177.8 29.76 6.91 PS PS PS – – – – –
7 23 177.8 34.23 8.05 – PSLBE PLB PLBE PLBE PLBE – –
7 26 177.8 38.69 9.19 – PSLBE PLB PLBE PLBE PLBE PLBE –
7 29 177.8 43.16 10.36 – – PLB PLBE PLBE PLBE PLBE –
7 32 177.8 47.62 11.51 – – PLB PLBE PLBE PLBE PLBE –
7 35 177.8 52.09 12.65 – – – PLBE PLBE PLBE PLBE PLBE
7 38 177.8 56.55 13.72 – – – PLBE PLBE PLBE PLBE PLBE
7 42.7 177.8 63.54 15.88 – – – – – P – –
7 46.4 177.8 69.05 17.45 – – – – – P – –
7 50.1 177.8 74.56 19.05 – – – – – P – –
7 53.6 177.8 79.77 20.62 – – – – – P – –
7 57.1 177.8 84.97 22.22 – – – – – P – –
7-5/8 24 193.68 35.72 7.62 PS – – – – – – –
7-5/8 26.4 193.68 39.29 8.33 – PSLBE PSLB PLBE PLBE PLBE – –
7-5/8 29.7 193.68 44.2 9.52 – – PLB PLBE PLBE PLBE PLBE –
7-5/8 33.7 193.68 50.15 10.92 – – PLB PLBE PLBE PLBE PLBE –
7-5/8 39 193.68 58.04 12.7 – – – PLBE PLBE PLBE PLBE PLBE
7-5/8 42.8 193.68 63.69 14.27 – – – PLB PLB PLB PLB PLB
7-5/8 45.3 193.68 67.41 15.11 – – – PLB PLB PLB PLB PLB
7-5/8 47.1 193.68 70.09 15.88 – – – PLB PLB PLB PLB PLB
7-5/8 51.2 193.68 76.19 17.45 – – – – – P – –
7-5/8 55.3 193.68 82.3 19.05 – – – – – P – –
7-3/4 46.1 196.85 68.6 15.11 – – – P P P P P
8-5/8 24 219.08 35.72 6.71 – PS PS – – – – –
8-5/8 28 219.08 41.67 7.72 PS – PS – – – – –
8-5/8 32 219.08 47.62 8.94 PS PSLBE PSLB – – – – –
8-5/8 36 219.08 53.57 10.16 – PSLBE PSLB PLBE PLBE PLBE – –
8-5/8 40 219.08 59.53 11.43 – – PLB PLBE PLBE PLBE PLBE –
8-5/8 44 219.08 65.48 12.7 – – – PLBE PLBE PLBE PLBE PLBE
8-5/8 49 219.08 72.92 14.15 – – – PLBE PLBE PLBE PLBE
9-5/8 32.3 244.48 48.07 7.92 PS – – – – – – –
9-5/8 36 244.48 53.57 8.94 PS PSLB PSLB – – – – –
9-5/8 40 244.48 59.53 10.03 – PSLBE PSLB PLBE PLBE PLBE – –
9-5/8 43.5 244.48 64.73 11.05 – – PLB PLBE PLBE PLBE PLBE –
9-5/8 47 244.48 69.94 11.99 – – PLB PLBE PLBE PLBE PLBE PLBE
9-5/8 53.5 244.48 79.62 13.84 – – – PLBE PLBE PLBE PLBE PLBE
9-5/8 58.4 244.48 86.91 15.11 – – – PLB PLB PLB PLB PLB
9-5/8 59.4 244.48 88.4 15.47 – – – – – P – –
9-5/8 64.9 244.48 96.58 17.07 – – – – – P – –
9-5/8 70.3 244.48 104.62 18.64 – – – – – P – –
9-5/8 75.6 244.48 112.5 20.24 – – – – – P – –
10-3/4 32.75 273.05 48.74 7.09 PS – – – – – – –
10-3/4 40.5 273.05 60.27 8.89 PS PSB PSB – – – – –
10-3/4 45.5 273.05 67.71 10.16 – PSBE PSB – – – – –
10-3/4 51 273.05 75.9 11.43 – PSBE PSB PSBE PSBE PSBE PSBE –
10-3/4 55.5 273.05 82.59 12.57 – – PSB PSBE PSBE PSBE PSBE –
10-3/4 60.7 273.05 90.33 13.84 – – – – – PSBE PSBE PSBE
10-3/4 65.7 273.05 97.77 15.11 – – – – – PSB PSB PSB
10-3/4 73.2 273.05 108.93 17.07 – – – – – P – –
10-3/4 79.2 273.05 117.86 18.64 – – – – – P – –
10-3/4 85.3 273.05 126.94 20.24 – – – – – P – –
11-3/4 42 298.45 62.5 8.46 PS – – – – – – –
11-3/4 47 298.45 69.94 9.53 – PSB PSB – – – – –
11-3/4 54 298.45 80.36 11.05 – PSB PSB – – – – –
11-3/4 60 298.45 89.29 12.42 – PSB PSB PSB PSB PSB PSB PSB
11-3/4 65 298.45 96.73 13.56 – – – P P P P P
11-3/4 71 298.45 105.66 14.78 – – – P P P P P
13-3/8 48 339.72 71.43 8.38 PS – – – – – – –
13-3/8 54.5 339.72 81.1 9.65 – PSB PSB – – – – –
13-3/8 61 339.72 90.78 10.92 – PSB PSB – – – – –
13-3/8 68 339.72 101.19 12.19 – PSB PSB PSB PSB PSB PSB –
13-3/8 72 339.72 107.15 13.06 – – – PSB PSB PSB PSB PSB
16 65 406.4 96.73 9.53 PS – – – – – – –
16 75 406.4 111.61 11.13 – PSB PSB – – – – –
16 84 406.4 125.01 12.57 – PSB PSB – – – – –
16 109 406.4 162.21 16.66 – P – P P – P P
18-5/8 87.5 473.08 130.21 11.05 PS PSB PSB – – – – –
20 94 508 139.89 11.13 PSL PSLB PSLB – – – – –
20 106.5 508 158.49 12.7 – PSLB PSLB – – – – –
20 133 508 197.93 16.13 – PSLB – – – – – –
Remarks
  • P – Plain end;
  • S – Short round thread;
  • L – Long round thread;
  • B – Buttress thread;
  • E – Extreme-line.

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