API 5CT J55 Casing Tubing Specification
| Pipe Casing Sizes, Oilfield Casing Sizes & Casing Drift Sizes | |
| Outer Diameter (Casing Pipe Sizes) | 4 1/2"-20", (114.3-508mm) |
| Standard Casing Sizes | 4 1/2"-20", (114.3-508mm) |
| Thread Type | Buttress thread casing, Long round thread casing, Short round thread casing |
| Function | It can protect the tubing pipe. |
API 5CT J55 Casing Tubing Features
The surface of thread of coupling and API 5CT J55 Casing Tubing should be smooth without any tear, burr or other defects that may have a negative impact on the strength and close connection.
API 5CT J55 Casing Tubing is offered with a free length range from 8m to 13m on basis of the SY/T6194-96 norm. However, it is also available no less than 6m length and its quantity should be no more than 20%.
Deformations which mentioned above are not allowed to appear on the outer surface of API 5CT J55 Casing Tubing coupling.
Any deformation such as crease, separation, hairline, crack or scab is not acceptable on both inner and outer surfaces of the product. All these defects should be completely removed, and the removed depth must not exceed 12.5% of nominal wall thickness.
| Size | Weight | Outside Diameter | Wall Thickness | End Finish | ||
| Grade | ||||||
| in | mm | in | mm | J55 K55 |
||
| 4 1/2 | 9.50 | 4.500 | 114.3 | 0.205 | 5.21 | PS |
| 10.50 | 0.224 | 5.69 | PSB | |||
| 11.60 | 0.250 | 6.35 | PSLB | |||
| 13.50 | 0.290 | 7.37 | – | |||
| 15.10 | 0.337 | 9.56 | – | |||
| 5 | 11.50 | 5.00 | 127.00 | 0.220 | 5.59 | PS |
| 13.00 | 0.253 | 6.43 | PSLB | |||
| 15.00 | 0.296 | 7.52 | PSLB | |||
| 18.00 | 0.362 | 9.19 | – | |||
| 21.40 | 0.437 | 11.10 | – | |||
| 23.20 | 0.478 | 12.14 | – | |||
| 24.10 | 0.500 | 12.70 | – | |||
| 5 1/2 | 14.00 | 5.500 | 139.7 | 0.244 | 6.20 | PS |
| 15.50 | 0.275 | 6.98 | PSLB | |||
| 17.00 | 0.304 | 7.72 | PSLB | |||
| 20.00 | 0.361 | 9.17 | – | |||
| 23.00 | 0.415 | 10.54 | – | |||
| 6 5/8 | 20.00 | 6.625 | 168.28 | 0.288 | 7.32 | PSLB |
| 24.00 | 0.352 | 8.94 | PSLB | |||
| 28.00 | 0.417 | 10.59 | – | |||
| 32.00 | 0.475 | 12.06 | – | |||
| 7 | 17.00 | 7.00 | 177.80 | 0.231 | 5.87 | – |
| 20.00 | 0.272 | 6.91 | PS | |||
| 23.00 | 0.317 | 8.05 | PSLB | |||
| 26.00 | 0.362 | 9.19 | PSLB | |||
| 29.00 | 0.408 | 10.36 | – | |||
| 32.00 | 0.453 | 11.51 | – | |||
| 35.00 | 0.498 | 12.65 | – | |||
| 38.00 | 0.540 | 13.72 | – | |||
| 7 5/8 | 24.00 | 7.625 | 193.68 | 0.300 | 7.62 | – |
| 26.40 | 0.328 | 8.33 | PSLB | |||
| 29.70 | 0.375 | 9.52 | – | |||
| 33.70 | 0.430 | 10.92 | – | |||
| 39.00 | 0.500 | 12.70 | – | |||
| 42.80 | 0.562 | 14.27 | – | |||
| 45.30 | 0.595 | 15.11 | – | |||
| 47.10 | 0.625 | 15.88 | – | |||
| 8 5/8 | 24.00 | 8.625 | 219.08 | 0.264 | 6.71 | PS |
| 28.00 | 0.304 | 7.72 | – | |||
| 32.00 | 0.352 | 8.94 | PSLB | |||
| 36.00 | 0.400 | 10.16 | PSLB | |||
| 40.00 | 0.450 | 11.43 | – | |||
| 44.00 | 0.500 | 12.70 | – | |||
| 49.00 | 0.557 | 14.15 | – | |||
| 9 5/8 | 32.30 | 9.625 | 244.48 | 0.312 | 7.92 | – |
| 36.00 | 0.352 | 8.94 | PSLB | |||
| 40.00 | 0.395 | 10.03 | PSLB | |||
| 43.50 | 0.435 | 11.05 | – | |||
| 47.00 | 0.472 | 11.99 | – | |||
| 53.50 | 0.545 | 13.84 | – | |||
| 58.40 | 0.595 | 15.11 | – | |||
| 10 3/4 | 32.75 | 10.75 | 273.05 | 0.279 | 7.09 | – |
| 40.50 | 0.350 | 8.89 | PSB | |||
| 15.50 | 0.400 | 10.16 | PSB | |||
| 51.00 | 0.450 | 11.43 | PSB | |||
| 55.50 | 0.495 | 12.57 | – | |||
| 60.70 | 0.545 | 13.84 | – | |||
| 65.70 | 0.595 | 15.11 | – | |||
| 13 3/8 | 48.00 | 13.375 | 339.73 | 0.330 | 8.38 | – |
| 54.50 | 0.380 | 9.65 | PSB | |||
| 61.00 | 0.430 | 10.92 | PSB | |||
| 68.00 | 0.480 | 12.19 | PSB | |||
| 72.00 | 0.514 | 13.06 | – | |||
| 16 | 65.00 | 16 | 406.40 | 0.375 | 9.53 | – |
| 75.00 | 0.438 | 11.13 | PSB | |||
| 84.00 | 0.495 | 12.57 | PSB | |||
| 109.00 | 0.656 | 16.66 | P | |||
| 18 5/8 | 87.50 | 18.625 | 473.08 | 0.435 | 11.05 | PSB |
| 20 | 94.00 | 20 | 508.00 | 0.438 | 11.13 | PSLB |
| 106.50 | 0.500 | 12.70 | PSLB | |||
| 133.00 | 0.635 | 16.13 | PSLB | |||
Tensile & Hardness Requirement
| Grade | Type | Total elongation under load % |
Yield strength MPa | Tensile strength min. MPa | Hardness a max. | Specified wall thickness mm |
Allowable hardness variation b HRC |
||
| min. | max | HRC | HBW | ||||||
| J55 | - | 0.5 | 379 | 552 | 517 | - | - | - | - |
