Certified Seamless Steel OCTG Casing and Tubing Pipe (J55/K55/N80) for Oil & Gas Well
Product Specifications
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Material
J55/K55
Product Details
| After-sales Service: | According to The Contract |
|---|---|
| Warranty: | According to The Contract |
| Certification: | ISO 9001:2008 |
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Basic Info.
- Power Source
- N/a
- Operation Pressure
- High Pressure
- Applicable Medium
- Mud, Water, Natural Gas, Crude Oil
- Structure
- Seamless Pipe
- Material
- Steel
- Transport Package
- Protection Caps in Both Ends, Waterproof Paper Wra
- Specification
- 5CT
- Trademark
- Baori Steel
- Origin
- China
- HS Code
- 73052000
- Production Capacity
- 50, 000 Pieces/Year
Product Description
Product Description

Overview of Seamless Oil Casing and Tubing
We are a premier manufacturer and supplier of high-quality OCTG (Oil Country Tubular Goods) products. With state-of-the-art production lines and strict adherence to strict standards, we provide a full range of Seamless Casing and Tubing to the global oil and gas industry. Our products are designed to withstand the most challenging drilling environments, including deep wells, high-pressure environments, and corrosive conditions.
As shown in our stock photos, we hold a strong inventory of high-grade pipes (such as P110, PSL3) ready for immediate delivery to support your drilling projects.
Product Details
Product Name | Seamless Oil Casing and Tubing |
Material Grade | J55, K55, N80 (1/Q), L80 (1/13Cr), C95, T95, P110, Q125 |
Tubing Out Diameter | 2 3/8" - 4 1/2" (60.3mm - 114.3mm) |
Casing Out Diameter | 4 1/2" - 20" (114.3mm - 508mm) |
Wall Thickness | 0.205" - 0.635" |
Length | R1 (4.88m-7.62m) R2 (7.62m-10.36m) R3 (10.36m or longer) |
Connection Type | NU/EU/IJ/STC/BTC/LTC/PREMIUM CONNECTION |
Heat Treatment | Normalized |
Surface Treatment | Corrosion proofing water-based paint |
Packing | Protection Caps on both ends, bundled with steel strips |


Our commitment to quality is visualized in our rigorous production flow. Every single pipe undergoes a multi-step inspection process before leaving our factory.
Every piece of our product wen through comprehensive laboratory testing
To guarantee superior quality, we conduct strict Chemical Analysis and Mechanical Testing (Tensile, Impact, Hardness) to ensure every pipe strictly complies with 5CT standards.
To guarantee superior quality, we conduct strict Chemical Analysis and Mechanical Testing (Tensile, Impact, Hardness) to ensure every pipe strictly complies with 5CT standards.
Application
Typical Wellbore Construction & Casing Application

Our Casing pipes are engineered to support the entire lifecycle of the well, from spudding to production. As illustrated in the diagram, we supply a full range of OD sizes for different casing layers:
1. Conductor Casing: The first string set to protect surface formations and prevent washout.
2. Surface Casing: Crucial for isolating freshwater zones and providing a foundation for the blowout preventer (BOP). Our pipes grades are widely used in this section.
3. Intermediate Casing: Installed to seal off unstable hole sections or abnormal pressure zones before drilling deeper.
4. Production Casing: The final string that isolates the production zones and provides a conduit for oil and gas to the surface.
Production Showcase





After Sales Service
12-Months Quality Warranty: We offer a one-year warranty from the date of product receipt. If any manufacturing defects occur during this period, we will provide free replacement or repair parts immediately.
Technical Support: Installing expansion joints correctly is critical. We provide detailed installation manuals and video guidance to ensure your onsite team installs the bellows correctly to avoid damage.
24/7 Response: Our sales and engineering team is available online. Any technical questions or claims will be responded to within 24 hours.
Third-Party Inspection: We accept inspections from SGS, BV, or TUV before shipment to ensure you receive exactly what you ordered.
Technical Support: Installing expansion joints correctly is critical. We provide detailed installation manuals and video guidance to ensure your onsite team installs the bellows correctly to avoid damage.
24/7 Response: Our sales and engineering team is available online. Any technical questions or claims will be responded to within 24 hours.
Third-Party Inspection: We accept inspections from SGS, BV, or TUV before shipment to ensure you receive exactly what you ordered.

Our Company

Company Profile

Shanghai Baori Steel Industries Co., Ltd, has established its significant
presence in the metal manufacturing and fabrication industries. Since its
establishment on May 27, 2014, the company has
been committed to providing comprehensive and efficient
fabrication solutions, focusing on the integration
and optimization of steel supply services.
presence in the metal manufacturing and fabrication industries. Since its
establishment on May 27, 2014, the company has
been committed to providing comprehensive and efficient
fabrication solutions, focusing on the integration
and optimization of steel supply services.

Company Address
Our company is located in Baoshan District, Shanghai, China.
Specific Location:
Specific Location:
Room 403, Building 1, Lane 1588, Youyi Road, Baoshan District, Shanghai, China
FAQ
Q: Are you a manufacturer or a trading company?
A: We are a professional manufacturer specialized in seamless casing and tubing. Our factory is equipped with complete production lines, including heat treatment, threading, and hydrostatic testing, ensuring direct supply and competitive factory prices.
A: We are a professional manufacturer specialized in seamless casing and tubing. Our factory is equipped with complete production lines, including heat treatment, threading, and hydrostatic testing, ensuring direct supply and competitive factory prices.
Q: How do you guarantee the product quality?
A: Quality is our priority. We are certified. For every shipment, we provide the original Mill Test Certificate (MTC) according to EN 10204 3.1/3.2. We also perform 100% NDT (Non-Destructive Testing) and drifting to ensure zero defects.
Q: What is your delivery time?
A: It depends on the order quantity. For standard sizes and grades like 9-5/8" P110 which we have in stock (as shown in photos), we can ship within 7-10 days. For new production orders, the lead time is typically 30-45 days.
Q: Do you accept Third Party Inspection (TPI)?
A: Yes, absolutely. We welcome third-party inspection agencies such as SGS, BV, DNV, or Moody to inspect the goods at our factory before loading. We believe in transparency and quality.
Q: Can you provide Premium Connections (Special Threads)?
A: Yes. Wreads with metal-to-metal seals) equivalent to VAM or Tenaris series to meet high-pressure well requirements.
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