English
API 5CT J55 tubing pipe is a steel pipe used in the oil and gas industry, adhering to the API 5CT standard. It has a minimum yield strength of 379 MPa (55,000 psi) and a tensile strength range of 517-724 MPa (75,000-105,000 psi). This grade is relatively lower in strength compared to higher grades like N80, L80, and P110, making it a more affordable option for applications where high strength is not required.
The primary function of API 5CT J55 tubing pipe is to transport crude oil or natural gas from the source rock to the ground wellhead. It is placed inside the casing and is used in shallow wells with low pressure, where the risk of collapse is minimal. Its steel composition provides greater strength and durability compared to some other materials, making it suitable for high-pressure applications.
| product name | API-5CT tubing Pipe, J55 tubing Pipe, API-5CT tubing, Oil tubing pipe, Oil well tubing, tubing pipe oil and gas, Oil field tubing Pipe |
| Outer Diamater | 48.26mm-114.3mm |
| Wall Thickness | 3.18mm-16mm |
| Thread Type | NUE, EUE, STC, LTC, BTC, XC, HYDRILL CS |
| Standards | API 5CT PSL1/PSL2 |
| Steel Grade | H40 J55 K55 N80 N80Q L80 P110 T95 Q125 |
| Surface Treatment | Hot Rolled |
| Special Pipe | API Pipe, Thick Wall Pipe, Other |
| Application | Fluid Pipe, Boiler Pipe, Drill Pipe, Hydraulic Pipe, OIL PIPE, Gas Pipe, Chemical Fertilizer Pipe |
| Certificate | API, ISO9001 |
| Length | R1, R2, R3 |
| MOQ | 1 ton |
| Packing | Standard Seaworthy Packing |
| Supply Ability | 3000Tons per Month |
| API 5CT J55 Chemical Composition | ||||||||||
| Grade | Carbon (C) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Silicon (Si) | Chromium (Cr) | Molybdenum (Mo) | Nickel (Ni) | Copper (Cu) | Vanadium (V) |
| API 5CT J55 | 0.34 max | 1.35 max | 0.030 max | 0.030 max | 0.10–0.50 | 0.15–0.25 | 0.10–0.25 | 0.20 max | 0.20 max | 0.02–0.08 |
| API 5CT J55 Mechanical Property | ||||||
| Grade | Total elongation under load (%) | Yield strength (min) | Yield strength (max) | Tensile strength min Mpa | Hardness Max (HRC) | Hardness Max (HBW) |
| J55 | 0.5 | 379 | 552 | 517 | - | - |
| K55 | 0.5 | 379 | 552 | 655 | ||
| Label | OD (mm) | WT (mm) | Type of End-finish | |||||||||
| Inch | NU T&C | EU T&C | IJ | H40 | J55 | L80 | N80 | C90 | T95 | P110 | ||
| 1.9 | 2.75 | 2.9 | 2.76 | 48.26 | 3.68 | PNUI | PNUI | PNUI | PNUI | PNUI | PNUI | - |
| 1.9 | 3.65 | 3.73 | - | 48.26 | 5.08 | PU | PU | PU | PU | PU | PU | PU |
| 1.9 | 4.42 | - | - | 48.26 | 6.35 | - | - | P | - | P | P | - |
| 2 3/8 | 4 | - | - | 60.32 | 4.24 | PU | PN | PN | PN | PN | PN | - |
| 2 3/8 | 4.6 | 4.7 | - | 60.32 | 4.83 | PNU | PNU | PNU | PNU | PNU | PNU | PNU |
| 2 3/8 | 5.8 | 5.95 | - | 60.32 | 6.45 | - | - | PNU | PNU | PNU | PNU | PNU |
| 2 3/8 | 6.6 | - | - | 60.32 | 7.49 | - | - | P | - | P | P | - |
| 2 3/8 | 7.35 | 7.45 | - | 60.32 | 8.53 | - | - | PU | - | PU | PU | - |
| 2 7/8 | 6.4 | 6.5 | - | 73.02 | 5.51 | PNU | PNU | PNU | PNU | PNU | PNU | PNU |
| 2 7/8 | 7.8 | 7.9 | - | 73.02 | 7.01 | - | - | PNU | PNU | PNU | PNU | PNU |
| 2 7/8 | 8.6 | 8.7 | - | 73.02 | 7.82 | - | - | PNU | PNU | PNU | PNU | PNU |
| 2 7/8 | 9.35 | 9.45 | - | 73.02 | 8.64 | - | - | PU | - | PU | PU | - |
| 2 7/8 | 10.5 | - | - | 73.02 | 9.96 | - | - | P | - | P | P | - |
| 3 1/2 | 7.7 | - | - | 88.9 | 5.49 | PN | PN | PN | PN | PN | PN | - |
| 3 1/2 | 9.2 | 9.3 | - | 88.9 | 6.45 | PNU | PNU | PNU | PNU | PNU | PNU | PNU |
| 3 1/2 | 10.2 | - | - | 88.9 | 7.34 | PN | PN | PN | PN | PN | PN | - |
| 3 1/2 | 12.7 | 12.95 | - | 88.9 | 9.52 | - | - | PNU | PNU | PNU | PNU | PNU |
| 3 1/2 | 14.3 | - | - | 88.9 | 10.92 | - | - | P | - | P | P | - |
| 3 1/2 | 15.5 | - | - | 88.9 | 12.09 | - | - | P | - | P | P | - |
| 4 | 9.5 | - | - | 101.6 | 5.74 | PN | PN | PN | PN | PN | PN | - |
| 4 | 10.7 | 11 | - | 101.6 | 6.65 | PU | PU | PU | PU | PU | PU | - |
| 4 | 13.2 | - | - | 101.6 | 8.38 | - | - | P | - | P | P | - |
| 4 | 16.1 | - | - | 101.6 | 10.54 | - | - | P | - | P | P | - |
| 4 1/2 | 12.6 | 12.75 | - | 114.3 | 6.88 | PNU | PNU | PNU | PNU | PNU | PNU | - |
| 4 1/2 | 15.2 | - | - | 114.3 | 8.56 | - | - | P | - | P | P | - |
API 5CT J55 tubing pipe is widely used in oil and gas wells due to its cost-effectiveness and reliable performance in less demanding environments. Its low-carbon steel composition ensures good weldability and machinability, making it easy to install and repair in the field. J55 tubing is suitable for shallow to medium-depth wells, offering moderate tensile and yield strength, which is sufficient for standard drilling and production operations. Its balanced mechanical properties make it a practical choice for non-corrosive or mildly corrosive conditions.
Its compliance with API 5CT standards, ensuring consistent quality, reliability, and compatibility with other well components. J55 tubing is also widely available, reducing lead times and costs for sourcing. Its versatility allows it to be used in various applications, including oil, gas, and water wells, particularly in low-pressure environments.
While not designed for high-pressure or highly corrosive conditions, J55 tubing provides an economical solution for standard well operations. Its durability, ease of use, and affordability make it a preferred choice for operators seeking a balance between performance and cost in less challenging drilling environments.
