Our API 5CT-certified J55 Oil Casing Pipes deliver essential structural integrity for oil and gas wells. These OCTG-compliant casings are engineered for shallow to medium-depth applications. Crafted from robust carbon steel with J55 grade strength, they provide cost-effective wellbore protection without compromising on API 5CT standards.
- Casing, Tubing & Casing Pipe
API 5CT OCTG J55 Oil Casing Pipe Size 4.5″to 20″
Email:
sales@imristeel.com
Phone:
+86 13646172523
Quote Now
Product Detail
Packaging & Delivery
Related Products
Product Detail
Our petroleum casing products strictly comply with API 5CT and ISO 11960 international standards, and we provide fully traceable factory test reports. Our products cover a wide range of sizes from 4 1/2“-18 5/8” OD, and can be machined to STC/LTC/BTC threaded end or flat end designs to meet the diverse needs of onshore, offshore, and unconventional oil and gas wells. For corrosive environments (e.g. H₂S/CO₂ gas fields), we provide 3PE/FBE coatings and other anti-corrosion solutions to significantly extend the life of the column.
Raw Material Selection
From steel billet and other raw material, chemical components analysis shall be done, in compliance with Standard Specification.Visual inspection is also taken, to prevent the defects, such as pit, crack, blowhole on surface or subsurface.
Quality Control
IMRI Steel pipes mostly come from PQF mill, the most advanced technology for producing seamless pipe world-wide.
NDT methods shall be applied to examine pipe and fittings, without destroying the serviceability of the sampling, mainly including:
*Eddy current testing
*Magnetic particle testing
*Ultrasonic testing.
NDT methods shall be applied to examine pipe and fittings, without destroying the serviceability of the sampling, mainly including:
*Eddy current testing
*Magnetic particle testing
*Ultrasonic testing.
Physical Testing
Physical testing is intended to test mechanical properties of steel in compliance with Standard Specification or Clients’ request, mainly including:
*Tensile strength test
*Yield strength test
*Elongation test
*Charpy V-notch impact test
*Hardness test (BHN, HV, RC, HRB)
*Hydrostatic test.
*Tensile strength test
*Yield strength test
*Elongation test
*Charpy V-notch impact test
*Hardness test (BHN, HV, RC, HRB)
*Hydrostatic test.
Inspection Before Shipment
The Surface, End, Marking, Packing, Quantity and Weight measurement shall be stricly done before shipment.A copy of inspection certificate shall be issued by our QC department, in the name of Baotou Steel.
Quick Details
Standard:
API 5CT/API 5B
Grade:
J55
Thickness:
2.9-60mm
Thread Type:
STC BTC LTC
Outer Diameter:
Ф114.3-406
Place of Origin:
Baotou, China(Mainland)
Function:
Structural Support; Wellbore Protection
Technique:
Hot Rolled; Seamless
Certification:
API 5CT/5B
Surface Treatmen:
According to customers request
Alloy Or Not:
No
length:
R1 R2 R3
Supply Ability:
( 180.0000 )Ton/Tons per year
Installation location:
Close to the open hole wall
Collapse Resistance:
≥2,000 psi
Brand:
Baotou steel
Application:
Medium and low pressure oil and gas Wells
Risk of failure:
Blowouts; Formation Contamination; Borehole Deformation
Mechanical Propert
| Grade | Type | Total under load Elongation % | Yield strength megapascal | Tensile strength megapascal | Hardness a, C Maximum | Specified OD mm | Allowable hardness Variation | ||
| Min | Max | Min | HRC | HBW | HRC | ||||
| H40 | – | 0.5 | 276 | 552 | 414 | – | – | – | – |
| J55 | – | 0.5 | 379 | 552 | 517 | – | – | – | – |
| K55 | – | 0.5 | 379 | 552 | 655 | – | – | – | – |
| N80 | 1 | 0.5 | 552 | 758 | 689 | – | – | – | – |
| N80 | Q | 0.5 | 552 | 758 | 689 | – | – | – | – |
| R95 | – | 0.5 | 655 | 758 | 724 | – | – | – | – |
| L80 | 1 | 0.5 | 552 | 655 | 655 | 23.0 | 241 | – | – |
| L80 | 3Cr | 0.5 | 552 | 655 | 655 | 23.0 | 241 | – | – |
| L80 | 9Cr | 0.5 | 552 | 655 | 655 | 23.0 | 241 | – | – |
| L80 | 13Cr | 0.5 | 552 | 655 | 655 | 23.0 | 241 | – | – |
|
C90 |
– |
0.5 |
621 |
724 |
689 |
25.4 |
255 | ≤12.70 | 3.0 |
| 12.71 to 19.04 | 4.0 | ||||||||
| 19.05 to 25.39 | 5.0 | ||||||||
| ≥25.40 | 6.0 | ||||||||
|
T95 |
– |
0.5 |
655 |
758 |
724 |
25.4 |
255 | ≤12.70 | 3.0 |
| 12.71 to 19.04 | 4.0 | ||||||||
| 19.05 to 25.39 | 5.0 | ||||||||
| ≥25.40 | 6.0 | ||||||||
|
C110 |
– |
0.7 |
758 |
828 |
793 |
29 |
279 | ≤12.70 | 3.0 |
| 12.71 to 19.04 | 4.0 | ||||||||
| 19.05o to 25.39 | 5.0 | ||||||||
| ≥25.40 | 6.0 | ||||||||
| P110 | – | 0.6 | 758 | 965 | 862 | – | – | – | – |
| Q125 | – | 0.65 | 862 | 1034 | 931 | b | – | ≤12.70 | 3.0 |
| 12.71 to 19.04 | 4.0 | ||||||||
| ≥19.05 | 5.0 | ||||||||
Chemistry Component
| Grade | Type | C | Mn | Mo | Cr | Ni | Cu | P | S | Si | ||||
| Min | Max | Min | Max | Min | Max | Min | Max | Max | Max | Max | Max | Max | ||
| H40 | – | – | – | – | – | – | – | – | – | – | – | 0.030 | 0.030 | – |
| J55 | – | – | – | – | – | – | – | – | – | – | – | 0.030 | 0.030 | – |
| K55 | – | – | – | – | – | – | – | – | – | – | – | 0.030 | 0.030 | – |
| N80 | 1 | – | – | – | – | – | – | – | – | – | 0.030 | 0.030 | – | |
| N80 | Q | – | – | – | – | – | – | – | – | – | – | 0.030 | 0.030 | – |
| R95 | – | – | 0.45 | – | 1.90 | – | – | – | – | – | – | 0.030 | 0.030 | 0.45 |
| L80 | 1 | – | 0.43 | – | 1.90 | – | – | – | – | 0.25 | 0.35 | 0.030 | 0.030 | 0.45 |
| L80 | – | – | 0.15 | 0.30 | 0.60 | 0.90 | 1.10 | 8.00 | 10.0 | 0.50 | 0.25 | 0.020 | 0.010 | 1.00 |
| L80 | 13Cr | 0.15 | 0.22 | 0.25 | 1.00 | – | – | 12.0 | 14.0 | 0.50 | 0.25 | 0.020 | 0.010 | 1.00 |
| C90 | 1 | – | 0.35 | – | 1.20 | 0.25 | 0.85 | – | 1.50 | 0.99 | – | 0.020 | 0.010 | – |
| T95 | 1 | – | 0.35 | – | 1.20 | 025 | 0.85 | 0.40 | 1.50 | 0.99 | – | 0.020 | 0.010 | – |
| C110 | – | – | 0.35 | – | 1.20 | 0.25 | 1.00 | 0.40 | 1.50 | 0.99 | – | 0.020 | 0.005 | – |
| P110 | – | – | – | – | – | – | – | – | – | – | – | 0.030 | 0.030 | – |
| Q125 | 1 | – | 0.35 | – | 1.35 | – | 0.85 | – | 1.50 | 0.99 | – | 0.020 | 0.010 | – |
Color Discrimination
| Grade | Type | Straps for products longer than 1.8 meters Quantity and color | Coupling color | |
| The whole coupling | Brand | |||
| H40 | No belt or black belt, to be selected by the manufacturer | not have | Same as for the pipeline | |
| J55 | A sea of green | Bright green | One white | |
| K55 | Two emerald green | Bright green | not have | |
| N80 | 1 | One red | red | not have |
| N80 | Q | One is red, the other emerald green | red | green |
| R95 | One brown | brown | not have | |
| L80 | 1 | One red, one brown | red | One brown |
| L80 | 3Cr | One red and one white | red | One white |
| L80 | 9Cr | One red, one brown, two yellow | not have | Two yellows |
| L80 | 13Cr | One red, one brown and one yellow | not have | One yellow |
| C90 | A purple one | purple | not have | |
| T95 | One silver | silvery | not have | |
| C110 | One white, two brown | white | Two brown | |
| P110 | One white | white | not have | |
| Q125 | One orange | orange | not have | |
Chemistry Component
| Scope 1 | Scope 2 | Scope 3 | |
| Tubes (PE/T and C/SF) | 4.88 to 7.62 1.83 | 7.62 to 10.36 one point five two | 10.36 to 14.63 1.83 |
| Oil pipes and casing used as oil pipes (PE/T and C/SF) | 6.10 to 7.32b 0.61 | 8.53 to 9.75 point six one | 11.58 to 12.80d 0.61 |
| Overall joint tubing (including IJ/PE and IJ/SF) | 6.10 to 7.92 0.61 | 8.53 to 10.36 0.61 | 11.58 to 13.72 0.61 |
| short section | Length: 0.61,0.91,1.22,1.83,2.44,3.05 and 3.669 Tolerance: ±0.076 | ||
Thread Cutting Process of Casing
Packaging & Delivery
Packaging & Delivery
· Thread: Screwing Plastic thread retainer + applying thread grease
· Pipe End: Covered HDPE crash cap (embedded foam cushion)
· Packing: Steel strapping in hexagonal bundles or as per customer’s request .(as pictures)
· Pipe End: Covered HDPE crash cap (embedded foam cushion)
· Packing: Steel strapping in hexagonal bundles or as per customer’s request .(as pictures)
Packaging & Shipping
· Minimum order quantity: 5 tons
· Price: FOB Xin’gang port in Tianjinor CIF or CFR
· Payment: 30% deposit in advance, the balance against the copy of B/L; or 100% L/C, etc
· Lead Time: within 10-25 workdays normally
· Sample: Free sample is available.
· Price: FOB Xin’gang port in Tianjinor CIF or CFR
· Payment: 30% deposit in advance, the balance against the copy of B/L; or 100% L/C, etc
· Lead Time: within 10-25 workdays normally
· Sample: Free sample is available.
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