API 5CT L80 N80 J55 K55 BTC Casing and Tubing Pipe China Factory Suppliers

Leading China factory and suppliers of API 5CT, API 5B, and ISO11960 casing and tubing pipes. High-performance solutions in J55, K55, N80-1, and L80 grades for crude oil and natural gas transport, designed to withstand extreme underground pressures.

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Details

Detailed Parameters

Standard	API SPEC 5CT, API SPEC 5B, ISO 11960	Steel Grades	J55, K55, N80-1, L80, H40
Outer Diameter	10mm ~ 609mm (Tubing: 2-3/8" to 4-1/2")	Wall Thickness	1.2mm ~ 60mm
Length	R1, R2, R3 (Custom lengths available)	Surface Finish	Black / Anti-corrosion coating
Tolerance	According to client's specific requirements	Packing	Bundles or customized export packaging
Applications	Oil, Gas, Water transmission, Construction	Delivery Time	7-10 days for one FCL (or per order list)

Key Advantages

Certified Quality

Fully compliant with API and ISO standards ensuring maximum safety and reliability in high-pressure wells.

Rapid Delivery

Efficient supply chain management allowing for 7-10 days delivery for full container loads.

High Pressure Resistance

Specially designed to withstand extreme underground pressures generated during mining.

Versatile Grading

Wide selection of grades (J55 to L80) to match specific geological and chemical requirements.

Third-Party Inspection

We welcome and accept independent third-party inspections to guarantee product transparency.

Customized Specs

Flexible manufacturing for customized lengths and tolerances based on client blueprints.

Product Gallery

Management Platforms

Inventory Control

Real-time tracking of steel pipe stock to ensure immediate availability for urgent projects.

Quality Assurance

Rigorous testing protocols aligned with API 5CT to eliminate material defects.

Logistics Tracking

End-to-end shipment monitoring from the factory to the oil field site.

Grade Optimization

Technical consultancy to help clients select the correct steel grade for their well environment.

Packaging Standards

Secure bundling and rust-proofing for long-distance maritime transportation.

Order Management

Streamlined T/T and L/C payment processing for global commercial transactions.

Investment Return Comparison

Feature	Standard Steel Pipe	Our API 5CT Pipe	Client Value
Durability	Average	High-Grade (L80/N80)	Lower Replacement Cost
Safety Risk	Moderate	Certified Low Risk	Enhanced Operational Safety
Lifespan	Short-Medium	Extended Lifecycle	Higher ROI over time
Compliance	Basic Industry	API/ISO Certified	Zero Regulatory Penalty
Lead Time	Unpredictable	7-10 Days (FCL)	Reduced Downtime Cost

Frequently Asked Questions

Q: What is the difference between J55 and L80 grades in API 5CT?

J55 is a lower strength grade typically used in shallower wells, while L80 provides higher yield strength and better resistance to corrosion, making it suitable for deeper and more aggressive environments.

Q: Does your company support third-party inspections for steel pipes?

Yes, we fully accept third-party inspections to ensure that all parameters, tolerances, and material grades meet the customer's specific requirements before shipment.

Q: What is BTC and why is it used for Casing and Tubing?

BTC stands for Buttress Threaded and Coupled. These threads are designed to handle higher tensile loads and provide better sealing, which is critical for the stability of the well casing.

Q: What is the typical delivery time for a full container load (FCL)?

Our standard delivery time for one FCL is typically between 7 to 10 days, depending on the specific order details and quantity.

Q: Can you provide customized lengths for oil well piping?

Absolutely. While we offer standard R1, R2, and R3 lengths, we can manufacture and cut pipes to any specific length requested by the client.

Q: Which payment methods do you accept for international orders?

We accept T/T (Telegraphic Transfer) and L/C (Letter of Credit) to provide flexibility and security for our global clients.