J55-P110 Grade Longkailai Couplings, Spot Supply, Strong Sealing, Affordable Prices

J55-P110 Grade Longkailai Couplings, Spot Supply, Strong Sealing, Affordable Prices System 1

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J55-P110 Grade Longkailai Couplings, Spot Supply, Strong Sealing, Affordable Prices

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 1 m.t.

Supply Capability:: 1300 m.t./month

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API 5CT J55/N80/P110 OCTG Casing & Tubing Manufacturer Direct‌

‌Comprehensive OCTG Solutions for Every Well Profile‌

As an API-licensed manufacturer, we eliminate intermediaries to deliver J55/N80/P110 casing and tubing with 15% cost savings. Our vertically integrated production process ensures full traceability from steel billet to finished product.

‌Technical Specifications‌

‌Material Science‌:

J55: 0.45% Mn, 0.25% C composition for shallow wells (≤8,000ft TVD)
N80: Quenched & tempered microstructure withstands 12,000psi collapse pressure
P110: 110ksi SMYS with Charpy V-notch impact ≥45J at -20°C

‌Threading Technology‌:

CNC-machined API LTC/BTC threads with ±0.003" pitch diameter tolerance
Optional VAM TOP connections for HPHT wells

‌Quality Assurance‌:

100% ultrasonic testing (UT) for laminations
Hydrostatic tested to 80% of yield strength

‌Applications‌

J55: Water injection wells, surface casing
N80: Intermediate casing in sour gas fields
P110: Production casing in 15,000psi reservoirs

‌Case Study‌

A Permian Basin operator reduced casing costs by 18% using our direct-shipment P110 casing for 35 horizontal wells, achieving 95% torque-turn compliance during running

Q: How are steel pipes used in the automotive manufacturing industry?: Steel pipes are commonly used in the automotive manufacturing industry for various applications such as exhaust systems, fuel lines, and structural components. They provide durability, strength, and resistance to heat and corrosion, making them ideal for withstanding the harsh conditions of vehicles.

Q: What is the difference between steel pipes and PVC-U pipes?: Steel pipes and PVC-U pipes differ in their composition, durability, and application. Steel pipes are made from iron and carbon, providing them with high strength and resistance to extreme conditions. They are commonly used for transporting water, gas, and oil in industrial settings due to their durability and ability to withstand high pressure and temperature. PVC-U pipes, on the other hand, are made from a synthetic plastic called polyvinyl chloride. They are lightweight, corrosion-resistant, and easy to install, making them ideal for residential plumbing, irrigation systems, and drainage. While steel pipes are more robust and suitable for heavy-duty applications, PVC-U pipes are cost-effective, versatile, and suitable for lighter applications.

Q: What is the difference between internal and external coating for steel pipes?: Internal coating for steel pipes refers to the application of a protective layer on the inner surface of the pipe to prevent corrosion and increase durability. This coating is designed to withstand the flow of fluids or gases through the pipe, ensuring the integrity of the material and minimizing the risk of contamination. On the other hand, external coating for steel pipes involves applying a protective layer on the outer surface of the pipe to safeguard it from environmental factors such as moisture, chemicals, or mechanical damage. This coating acts as a barrier, shielding the pipe from corrosion and extending its lifespan. In summary, internal coating focuses on protecting the inner surface of the steel pipe, while external coating aims to safeguard the outer surface. Both coatings are crucial for ensuring the longevity and reliability of steel pipes in various applications.

Q: Can steel pipes be used for conveying chemicals?: Yes, steel pipes can be used for conveying chemicals. Steel is a strong and durable material that can withstand high pressure and temperature conditions, making it suitable for transporting various chemicals. Additionally, steel pipes have excellent resistance to corrosion, which is crucial when dealing with corrosive substances. They are commonly used in industries such as oil and gas, chemical processing, and water treatment where the safe and efficient transport of chemicals is essential. However, it is important to consider the specific requirements of the chemical being conveyed and ensure that the steel pipe is compatible with it. Proper material selection, including the use of corrosion-resistant coatings or linings, may be necessary to prevent any adverse reactions between the chemicals and the steel pipe.

Q: What are the different methods of pressure testing steel pipes?: There are several methods of pressure testing steel pipes, including hydrostatic testing, pneumatic testing, and ultrasonic testing.

Q: What are the common protective coatings used on the inner surface of steel pipes?: The common protective coatings used on the inner surface of steel pipes include epoxy, polyurethane, and cement mortar coatings. These coatings provide corrosion resistance, prevent the formation of scales, and improve the durability and lifespan of the pipes.

Q: What is the difference between hot dip galvanized steel pipe and galvanized steel pipe?: The difference between the process is that the hot dip galvanized pipe is dipped in the molten zinc bath and the galvanized pipe is plated with a metallic surface by means of unidirectional current in the plating bath. Hot plating process is fast, the coating is thick and consumes more zinc. Ordinary galvanized slow speed, thin coating.

Q: How are steel pipes used in the construction of oil storage tanks?: Steel pipes are commonly used in the construction of oil storage tanks for several purposes. Firstly, they are used to create the framework and structure of the tank, providing strength and durability to support the weight of the stored oil. Additionally, steel pipes are used for the internal and external piping systems of the tank, facilitating the transportation of oil to and from the tank. Finally, steel pipes are also employed for the ventilation and drainage systems of the tank, ensuring proper airflow and drainage to prevent any potential hazards or damage.

Q: What is the difference between steel pipes and concrete-lined pipes?: Steel pipes are made entirely of steel and are known for their strength and durability. They are commonly used in various applications, including transporting liquids and gases, as well as structural support. On the other hand, concrete-lined pipes are made of steel with a layer of concrete applied to the inner surface. This concrete lining provides additional protection against corrosion and abrasion, making them suitable for transporting corrosive materials or in aggressive environments. The concrete lining also helps in reducing friction within the pipe, resulting in improved flow efficiency.

Q: Can steel pipes be used for underground chemical injection?: Yes, steel pipes can be used for underground chemical injection. Steel pipes are known for their durability and corrosion resistance, making them suitable for various applications, including underground chemical injection. However, it is also important to consider the type of chemical being injected and verify if steel pipes are compatible with the specific chemical to avoid any potential reactions or degradation.

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