Api J55 Casing Pipe Manufacturers
Benefits of Using API J55 Casing Pipes in oil and gas industry The oil and gas industry is a vital sector that plays a crucial role in powering the world‘s economy. It is an industry that requires the use of high-quality equipment and Materials to ensure the safe and efficient extraction of oil and gas…
Benefits of Using API J55 Casing Pipes in oil and gas industry

The oil and gas industry is a vital sector that plays a crucial role in powering the world‘s economy. It is an industry that requires the use of high-quality equipment and Materials to ensure the safe and efficient extraction of oil and gas resources. One such essential component in this industry is the casing pipe, which is used to line the wellbore during drilling operations. api J55 casing pipes are widely recognized as one of the best options for this purpose, offering numerous benefits that make them the preferred choice for many oil and gas Companies.
One of the primary advantages of using Api J55 casing pipes is their exceptional strength and durability. These pipes are manufactured using high-quality steel, which undergoes a rigorous process to ensure its strength and integrity. This makes them capable of withstanding the extreme pressures and temperatures that are often encountered during drilling operations. The robustness of Api J55 casing pipes ensures that they can effectively protect the wellbore and prevent any potential leaks or collapses, thereby enhancing the overall safety and reliability of the drilling process.
| api 5ct l80 casing tubing grade Color codes | ||||
| Grade | Grade Type | Number and Color of Bands for product a with length ³ 1.8 m | Color(s) for couplings | |
| Entire Coupling | Band(s) b, c | |||
| 1 | 2 | 3 | 4 | 5 |
| H40 | — | None or black band at the Manufacturer’s option | None | Same as for pipe |
| j55 tubing | — | One bright green | Bright green | None |
| J55 Casing | — | One bright green | Bright green | One white |
| k55 | — | Two bright green | Bright green | None |
| n80 | 1 | One red | Red | None |
| N80 | Q | One red, one bright green | Red | Green |
| R95 | — | One brown | Brown | None |
| L80 | 1 | One red, one brown | Red | One brown |
| L80 | 9Cr | One red, one brown, two yellow | None | Two yellow |
| L80 | 13Cr | One red, one brown, one yellow | None | One yellow |
| c90 | 1 | One purple | Purple | None |
| T95 | 1 | One silver | Silver | None |
| C110 | — | One white, two brown | White | Two brown |
| p110 | — | One white | White | None |
| Q125 | 1 | One orange | Orange | None |
| a In the case of coupling material, unless otherwise specified in the purchase agreement, the manufacturer’s internal requirements shall govern. | ||||
| b Special clearance couplings shall also have a black band. | ||||
| c Seal-ring couplings shall also have a blue band. | ||||
