Stainless Steel

Tubing Couplings and Coupling Material Eccentric Wear I. Tubing Couplings Product Features: Tubing couplings are essential accessories used to connect tubing, typically made from high-strength metallic materials such as carbon steel or alloy steel. These materials provide excellent corrosion resistance and fatigue performance. The design of the couplings effectively disperses stress concentrations in the wellb, preventing cracks or fatigue damage caused by excessive localized stress. Common types of tubing couplings include standard couplings, semi-upset couplings, internally upset couplings, threaded couplings, sealing couplings, and ultra-high-pressure couplings. Each type offers solutions tailored to different well conditions and pressure environments. Application Fields: Tubing couplings play a crucial role in the oil and natural gas industry, primarily used to connect tubing to ensure the continuous flow of oil or natural gas from the wellb to the surface. They are used to connect various types and sizes of tubing, including straight pipes, transition pipes, elbows, and other equipment such as floating production storage and offloading systems and pipeline valves. Additionally, tubing couplings are widely used in plumbing, petrochemical, heating systems, and construction engineering. Product Advantages: 1. High Strength and Durability: Manufactured from high-quality materials, these couplings can withstand high pressure, high temperature, and corrosive conditions. 2. Sealing Performance: Special thread designs and sealing structures ensure the tightness of the connection. 3. Multiple Type Options: A variety of types and specifications are available to meet different application scenarios. 4. Customized Services: Customized solutions can be provided based on specific customer needs. II. Coupling Material Eccentric Wear Product Features: Eccentric wear of coupling material refers to the wear phenomenon caused by friction between the sucker rod and the tubing coupling. This wear can reduce the strength of the coupling and may even cause fractures, affecting the normal operation of the oil well. To address this issue, various anti-wear technologies and products have been developed, such as the KZX Sucker Rod Anti- Wear Centralizer, JY Anti-Wear Device, and Wear-Reducing Tubing Couplings. These products enhance the wear resistance of the couplings through special material treatments (such as laser surface hardening and ion implantation N+ treatment) or structural designs (such as wear-resistant and corrosion- resistant non-metallic composite material coatings). Application Fields: Solutions for eccentric wear are mainly applied in the oil and natural gas extraction industry, especially for wells that require long-term operation and are at high risk of friction. These anti-wear products effectively reduce the wear between the sucker rod and the tubing coupling, extending the service life of the equipment and reducing maintenance costs. Product Advantages: 1. Enhanced Wear Resistance: Special material treatments and structural designs significantly improve the wear resistance of the couplings. 2. Reduced Maintenance Costs: Effectively reduces eccentric wear, extends the service life of the equipment, and reduces maintenance and replacement costs caused by wear. 3. Increased Production Efficiency: Reduces downtime caused by equipment failure, ensuring the efficient operation of oil wells. 4. Strong Environmental Adaptability: Maintains good performance in complex downhole environments. In the oil and natural gas industry, tubing couplings and solutions for eccentric wear of coupling material are key components to ensure the safe and efficient operation of oil wells. By selecting the appropriate products and solutions, the reliability and service life of the equipment can be effectively improved, providing strong support for oil extraction. Additional Information: - 4-1/2" LT Thread Oil Casing: Oil casing is primarily used for drilling oil and gas wells and for the transportation of oil and gas. It includes drill pipes, oil casing, and sucker rods. - Coupling Manufacturers: Offering extended-length tubing couplings and special clearance couplings. - Casing Couplings: Available thread types include ST (Short Round Thread), LT (Long Round Thread), and BT (Buttress Thread). - Tubing Couplings: Sizes include 2-3/8", 2-7/8", 3-1/2", 4-1/2" with thread types NUE and EUE. - Casing Couplings: Sizes include 4-1/2", 5-1/2", 6-5/8", 7", 9-5/8", 10-3/4", 13-3/8", 20" with thread types ST, LT, BT. Quality Assurance: 1. Coupling Material Certification: Provide a quality statement for coupling blanks in accordance with API Spec 5CT (9th Edition) requirements, along with relevant documentation to ensure that the coupling blanks are produced in compliance with API standards. 2. Thread Inspection: For casing couplings, the 11th Edition couplings with BT threads are available as standard stock. Thread processing parameters such as close tolerance, tooth height, pitch, and taper are inspected in accordance with API Spec 5CT (9th Edition) and API Spec 5B (15th Edition). All dimensional and thread parameter inspections should be well documented. The thread surface should be smooth and free from obvious tearing, tool marks, grinding marks, shoulders, or any other defects that disrupt the continuity of the thread. The internal and external chamfers and starting threads should be free from burrs and sharp edges. 3. Critical Thickness of Couplings: The critical thickness of the couplings should be specified. 4. Chamfered Casing Couplings: The 11th Edition couplings with BT threads are available as standard stock. Conversion couplings and thread change couplings for N80/L80 tubing couplings with 2-7/8" EUE are also available. 5. Chamfered Edges: The internal and external chamfered edges of the coupling should have a radius of ≥0.5 mm. Chamfering should be applied to the inner and outer edges of the coupling's load-bearing surface. 6. Thread Inspection: Ultrasonic testing of threads is conducted to ensure quality. We sincerely look forward to your call! We are committed to serving you wholeheartedly! Contact:Bone Email:Bone@ , dlpoctg.com Whatsapp/WeChat /Tel: +86-18222899636

Minimum Order: 1 bags

FOXHYD-511 Special Thread, VAM FJL Gas-Tight Thread, HYD-PH6 Direct-Connect Gas-Tight Thread In the oil and natural gas industry, the reliability of thread connections directly affects the safety and efficiency of operations. Our products, including FOXHYD-511 special thread, VAM FJL gas-tight thread, and HYD-PH6 direct-connect gas-tight thread, are designed and manufactured using advanced concepts and processes to provide high-quality thread connection solutions. Product Features: - The FOXHYD-511 special thread is characterized by high strength, excellent sealing performance, and fatigue resistance. - The VAM FJL gas-tight thread features a special sealing structure that effectively prevents gas leakage. - The HYD-PH6 direct-connect gas-tight thread offers convenient connection, reliable sealing, and good vibration resistance. Application Fields: These thread products are widely used in oil and natural gas drilling, extraction, and transportation. During drilling operations, they are used to connect drill pipes and drill collars, ensuring smooth drilling. In extraction, they connect tubing and casing to ensure efficient oil and gas transmission. In transportation, they connect pipelines to ensure safe oil and gas delivery. Product Advantages: Our thread products are manufactured from high-quality materials and undergo strict quality inspection to meet relevant standards. In the design process, we consider various operational requirements to ensure reliability and durability. Additionally, we provide professional technical support and after-sales service to address any issues customers may encounter. Custom Processing: Tianjin Longkailai Petroleum Equipment Co., Ltd. undertakes the processing and production of various special threads for oil and casing pipes, including high gas-tightness thread processing. We offer custom processing of special thread couplings, special thread tubing couplings, special thread casing couplings, and other related products. We can also process special threads for tubing and casing in sizes ranging from 2-3/8 inches to 20 inches. Special Thread Advantages: - High joint strength, matching or exceeding the strength of the pipe body, suitable for deep and ultra-deep wells. - Excellent sealing performance, suitable for high-pressure gas wells, oil wells, and thermal recovery wells. - Strong bending resistance, suitable for directional wells, extended-reach wells, and horizontal wells. - Easy and reliable connection, suitable for drilling operations in harsh environments such as deserts and offshore areas. - Good anti-sticking performance, allowing repeated loosening and tightening without damaging the threads. - High resistance to over-torque. - Good corrosion resistance. Contact:Bone Email:Bone@dlpoctg. , com Whatsapp/WeChat /Tel: +86-18222899636

Minimum Order: 1 bags

41/2” LTC Coupling Oil Casing Oil casing is primarily used for drilling oil and gas wells and the transportation of oil and gas. It includes oil drill pipes, oil casings, and sucker rods. Introduction to Oil Casing Coupling Types: 1. LTC (Long Thread Connector): Long round coupling. The long thread connection LTC has the same thread shape as STC and can be connected; however, such connections are generally not permitted because they can withstand different torque values. 2. STC (Stub (Short) Thread Connector): Short round coupling. Both STC and LTC threads belong to the API standard threads. The only difference is the length of the threads; LTC is longer, while STC is shorter. For a 41/2” outer diameter pipe, if the actual measured thread length exceeds 3 inches, it is generally considered LTC; if it is less than 3 inches, it is considered STC. 3. BTC (Buttress Thread Coupling): Buttress thread coupling. Processable Casing Specifications: 41/2'', 5'', 51/2'', 65/8'', 7'', 75/8'', 85/8'', 95/8'', 103/4'', 113/4'', 133/8'', 16'', 185/8'', 20''. Steel Grades: J55, K55, N801, N80Q, L801, P110, L803CR, 9CR, 13CR, P11013CR (Super 13CR), 28CR, etc. Coupling Types: Short round coupling (STC), long round coupling (LTC), buttress coupling (BTC), and various high gastightness special couplings. Production Process: Hot rolling. Product Use: Used for drilling oil wells. Packaging Method: Steel straps/steel frames, or according to customer requirements. Annual Supply Volume: 300,000 tons. Our company strictly adheres to API Spec 5CT standards and the ISO 9001 international quality management system. We have manufacturing equipment, including CNC lathes, CNC coupling machines, automatic flaw detectors, CNC hydrostatic pressure testing machines, automatic marking machines, automatic painting and labeling machines, 16ton cranes, ultrasonic thickness gauges, and automatic feeding systems for production and testing. While meeting domestic market needs, we provide highquality products and services to numerous enterprises and have established longterm supplier relationships with countries and regions such as Saudi Arabia, the United Arab Emirates, Sudan, Kuwait, and Turkey. Corporate Purpose: Integrity, Pragmatism, Mutual Benefit, WinWin. Management Philosophy: Based on humane management, we implement modern management throughout all departments and processes of the enterprise; marketoriented, adhering to integrity and legality, and achieving winwin situations with customers. We always follow the principle of prioritizing people before tasks, insisting on equipment and scientific management as the foundation, and providing customers with highquality products. With a complete marketing network and service system, we ensure satisfactory service for our customers. We look forward to working together to create brilliance!

Minimum Order: 1 bags

Item Details Product Overview The high-performance gas tight coupling is an advanced connection piece designed for oil casing connections, utilizing New VAM design to effectively prevent gas leakage and liquid penetration. This connection piece is suitable for high-pressure and high-temperature environments, ensuring the safety and stability of oil and gas extraction. The design of the gas tight coupling considers the complexity of downhole conditions and is capable of withstanding extreme working conditions. The materials used for the gas tight coupling are high-strength alloy steel, treated to enhance its corrosion resistance and wear resistance, ensuring long-term use in harsh environments. Technical Specifications - Outer Diameter: Customized according to pipe specifications - Material: High-strength alloy steel - Connection Strength: Specially designed to withstand tensile strengths of up to 1000 - Temperature Range: -20°C to +120°C - Corrosion Resistance: Optimized for acidic and alkaline environments - Connection Methods: Various connection methods available to adapt to different downhole conditions. Product Features The unique design of the gas tight coupling provides excellent sealing performance under high pressure and high temperature conditions. Through optimized thread design and sealing structure, the gas tight coupling effectively prevents gas and liquid leakage, ensuring the safe extraction of oil and gas. Additionally, the gas tight coupling undergoes special surface treatment, providing good wear resistance and corrosion resistance, thus extending its service life. The design of the gas tight coupling has been optimized to effectively reduce downhole working pressure, improving operational efficiency. Application Scenarios The high-performance gas tight coupling is widely used in deepwater oil fields, shale gas wells, and other high-pressure and high- temperature oil and gas extraction projects. Due to its excellent sealing performance and durability, the gas tight coupling is the preferred choice for many oil conies when selecting connection pieces. Particularly in handling high-pressure gases and liquids, the gas tight coupling demonstrates its superior performance, ensuring the safety and stability of oil and gas extraction. Stock and Delivery We offer a stock inventory of high-performance gas tight couplings to quickly meet customer demands. The typical delivery period is 7-15 days, which can be adjusted based on order volume and production arrangements. Our products undergo strict quality inspections to ensure that each connection piece meets international standards and can be safely used in harsh environments. We also provide personalized customization services to meet the specific requirements of customers. Quality Assurance We commit to providing high-quality gas tight couplings; all products undergo strict quality inspections to ensure compliance with API 5CT standards and other international standards. We have a comprehensive after-sales service system to ensure that any issues encountered by customers during use can be resolved promptly. Our goal is to earn customer trust and support through high-quality products and services. Advantages/Features Acomprehensive enterprise engaged in production, processing, comprehensive enterprise engaged in production, processing, sales, technical research and development, and inventory storage. Located in Jinghai District, Tianjin, China, it was founded in 2008 with a registered capital of 11.18 million RMB. The cony holds import and export rights, ISO 9001 quality system certification, API 5CT certification from the American Petroleum Institute, and multiple national patent certificates. The production workshop is equipped with high- precision CNC lathes, thread rolling machines, hydraulic testers, and various inspection instruments. - Product Range: Includes oil casings such as J55, K55, N80, L80, P110, as well as couplings, short joints, and transition joints; high corrosion-resistant oil casings such as 80S, 90S, 110S, L80, 1Cr, 3Cr, and 13Cr are stocked year-round, maintaining an inventory of around 2,000 tons. - Processing Capability: Undertakes custom processing of direct connection types, tapered types, double-step types, and variable thread types for special sealing threads, as well as copper plating services. - Delivery and Quality: Fast delivery and high quality, aimed at reducing costs and increasing efficiency for customers. Our vision is to build an international petroleum pipeline equipment enterprise through integrity and innovation. We welcome leaders and friends from all walks of life to visit and cooperate for mutual development. 1. Established: 2008, with 17 years of experience; registered capital of 11.18 million RMB; workshop area of 8000 square meters; annual foreign trade revenue of 20 million RMB. 2. Certifications: Holds import and export rights, ISO 9001 quality system certification, API 5CT certification from the American Petroleum Institute, and multiple national patent certificates. 3. Equipment: The production workshop is equipped with high-precision CNC lathes, thread rolling machines, hydraulic testers, and various inspection instruments. 4. Product Types: Offers J55, K55, N80, L80, P110 oil casings, couplings, short joints, and transition joints. 5. Inventory: Maintains a stock of high corrosion-resistant oil casings such as 80S, 90S, 110S, 1Cr, 3Cr, and 13Cr, with approximately 2,000 tons available year-round. 6. Special Processing: Provides custom processing for direct connection types, tapered types, double-step types, and variable thread types for special sealing threads, as well as copper plating services, producing tens of thousands of special couplings each year. Contact:Bone Email:Bone@dlpoctg.com Whatsapp/WeChat /Tel: +86-18222899636

Minimum Order: 1 bags

Item Details Product Overview The 80S oil pipe is a high corrosion-resistant pipe specifically designed for complex oil and gas extraction environments. The diameter of this oil pipe is 139.7mm, suitable for high-temperature and high- pressure oil wells, effectively resisting the corrosion of corrosive media. The 80S oil pipe meets API 5CT standards and is widely used in the petroleum and natural gas industries. Its superior corrosion resistance and quick connection design make the 80S oil pipe an indispensable material in modern oil and gas operations. Technical Specifications - Outer Diameter: 139.7mm - Wall Thickness: 6.35mm (various specifications available upon request) - Material: 80S alloy steel - Yield Strength: ≥ 552 - Tensile Strength: ≥ 655 - Length: Standard length is 9.14 meters (30 feet), can be customized. - Connection Types: Quick connection design for ease of installation and maintenance. - Temperature Range: Suitable for use in environments ranging from -20°C to +80°C. - Corrosion Resistance: Optimized for acidic and corrosive media. Product Features The 80S oil pipe has excellent corrosion resistance and high strength, making it particularly suitable for use in environments containing acidic gases and corrosive media. Its quick connection design significantly reduces installation time, thereby lowering labor costs. Additionally, the surface of the oil pipe undergoes special treatment to enhance its wear resistance and corrosion resistance, extending its service life. The design of the 80S oil pipe has been optimized to effectively reduce downhole working pressure, improving operational efficiency. Application Scenarios The 80S oil pipe is widely used in deepwater oil fields, shale gas wells, and other complex oil and gas extraction operations. Due to its high corrosion resistance, the 80S oil pipe can effectively prevent wellbore corrosion during long-term use, reducing maintenance costs. In practical applications, the 80S oil pipe has become the preferred material for many large oil conies, widely used in complex oil and gas extraction projects. Particularly in handling highly corrosive gases and liquids, the 80S oil pipe demonstrates its superior performance, becoming the preferred choice for many oil conies in complex operations. Stock and Delivery We provide ample stock inventory to ensure that customers can obtain the required products in a timely manner. The typical delivery period is 10-20 days, depending on order volume and production arrangements. Our products undergo strict quality inspections to ensure that each pipe meets international standards. We also offer personalized customization services to meet the different needs of customers. Whether for standard lengths or specific specifications, we can quickly respond to customer demands. Quality Assurance We commit to providing high-quality 80S oil pipes; all products undergo rigorous quality inspections to ensure compliance with API 5CT standards and other international standards. We have a comprehensive after- sales service system to ensure that any issues encountered by customers during use can be resolved promptly. Our goal is to earn customer trust and support through high-quality products and services. Advantages/Features Tianjin Grand Victory Petroleum Equipment Co., Ltd. is a comprehensive enterprise engaged in production, processing, sales, technical research and development, and inventory storage. Located in Jinghai District, Tianjin, China, it was founded in 2008 with a registered capital of 11.18 million RMB. The cony holds import and export rights, ISO 9001 quality system certification, API 5CT certification from the American Petroleum Institute, and multiple national patent certificates. The production workshop is equipped with high- precision CNC lathes, thread rolling machines, hydraulic testers, and various inspection instruments. - Product Range: Includes oil casings such as J55, K55, N80, L80, P110, as well as couplings, short joints, and transition joints; high corrosion-resistant oil casings such as 80S, 90S, 110S, L80, 1Cr, 3Cr, and 13Cr are stocked year-round, maintaining an inventory of around 2,000 tons. - Processing Capability: Undertakes custom processing of direct connection types, tapered types, double-step types, and variable thread types for special sealing threads, as well as copper plating services. - Delivery and Quality: Fast delivery and high quality, aimed at reducing costs and increasing efficiency for customers. Our vision is to build an international petroleum pipeline equipment enterprise through integrity and innovation. We welcome leaders and friends from all walks of life to visit and cooperate for mutual development. 1. Established: 2008, with 17 years of experience; registered capital of 11.18 million RMB; workshop area of 8000 square meters; annual foreign trade revenue of 20 million RMB. 2. Certifications: Holds import and export rights, ISO 9001 quality system certification, API 5CT certification from the American Petroleum Institute, and multiple national patent certificates. 3. Equipment: The production workshop is equipped with high-precision CNC lathes, thread rolling machines, hydraulic testers, and various inspection instruments. 4. Product Types: Offers J55, K55, N80, L80, P110 oil casings, couplings, short joints, and transition joints. 5. Inventory: Maintains a stock of high corrosion-resistant oil casings such as 80S, 90S, 110S, 1Cr, 3Cr, and 13Cr, with approximately 2,000 tons available year-round. 6. Special Processing: Provides custom processing for direct connection types, tapered types, double-step types, and variable thread types for special sealing threads, as well as copper plating services, producing tens of thousands of special couplings each year. Contact:Bone Email:Bone@dlpoctg.com Whatsapp/WeChat /Tel: +86-18222899636

Minimum Order: 1 bags

Item Details Product Overview P110S oil pipe is a high-strength, high-corrosion- resistant pipe specifically designed for ultra-deep oil and gas wells. The diameter of this oil pipe is 114.3mm, capable of withstanding extreme working conditions, ensuring safe use in high-pressure and high-temperature environments. P110S oil pipe meets API 5CT standards and is widely used in the petroleum and natural gas extraction industries. Due to its excellent mechanical properties and corrosion resistance, the P110S oil pipe is an indispensable material in deep well operations. Technical Specifications - Outer Diameter: 114.3mm - Wall Thickness: 8.56mm (various wall thicknesses available upon customer request) - Material: P110S alloy steel - Yield Strength: ≥ 758 MPa - Tensile Strength: ≥ 862 MPa - Length: Standard length is 9.14 meters (30 feet), can be customized. - Connection Types: Various connection methods available to adapt to different downhole conditions. - Temperature Range: Suitable for use in environments ranging from -20°C to +120°C. - Corrosion Resistance: Optimized for environments containing H₂S and CO₂. Product Features The P110S oil pipe has excellent strength and corrosion resistance, making it particularly suitable for ultra-deep oil and gas wells and high-pressure oil fields. Its high yield strength and tensile strength allow it to perform excellently under extreme conditions, ensuring the safe and stable extraction of oil and gas. Additionally, the surface of the oil pipe undergoes special treatment to enhance its wear resistance and corrosion resistance, extending its service life. The P110S pipe is designed to effectively reduce downhole working pressure, improving operational efficiency. Application Scenarios The P110S oil pipe is widely used in ultra-deep oil fields, deepwater oil wells, and other high-pressure environments. Due to its high strength and corrosion resistance, the P110S oil pipe effectively prevents wellbore collapse and pipeline leakage, ensuring the safe extraction of oil and gas. Our products have been applied in multiple large oil and gas projects, with positive customer feedback. Particularly in handling high-pressure and high-temperature operating environments, the P110S oil pipe demonstrates its superior performance, becoming the preferred choice for many oil companies in deep well operations. Stock and Delivery Our company has ample stock inventory of P110S oil pipes, enabling us to quickly meet customer demands. The typical delivery period is 7-15 days, depending on order volume and production arrangements. Our products undergo strict quality inspections to ensure compliance with international standards. We also provide customization services to produce different specifications of oil pipes according to customer special requirements. Quality Assurance We commit to providing high-quality P110S oil pipes; all products undergo strict quality inspections to ensure compliance with API 5CT standards and other international standards. We have a comprehensive after- sales service system to ensure that any issues encountered by customers during use can be resolved promptly. Our goal is to earn customer trust and support through high-quality products and services. Advantages/Features Acomprehen , sive enterprise engaged in production, processing, comprehensive enterprise engaged in production, processing, sales, technical research and development, and inventory storage. Located in Jinghai District, Tianjin, China, it was founded in 2008 with a registered capital of 11.18 million RMB. The company holds import and export rights, ISO 9001 quality system certification, API 5CT certification from the American Petroleum Institute, and multiple national patent certificates. The production workshop is equipped with high-precision CNC lathes, thread rolling machines, hydraulic testers, and various inspection instruments. - Product Range: Includes oil casings such as J55, K55, N80, L80, P110, as well as couplings, short joints, and transition joints; high corrosion-resistant oil casings such as 80S, 90S, 110S, L80, 1Cr, 3Cr, and 13Cr are stocked year-round, maintaining an inventory of around 2,000 tons. - Processing Capability: Undertakes custom processing of direct connection types, tapered types, double-step types, and variable thread types for special sealing threads, as well as copper plating services. - Delivery and Quality: Fast delivery and high quality, aimed at reducing costs and increasing efficiency for customers. Our vision is to build an international petroleum pipeline equipment enterprise through integrity and innovation. We welcome leaders and friends from all walks of life to visit and cooperate for mutual development. 1. Established: 2008, with 17 years of experience; registered capital of 11.18 million RMB; workshop area of 8000 square meters; annual foreign trade revenue of 20 million RMB. 2. Certifications: Holds import and export rights, ISO 9001 quality system certification, API 5CT certification from the American Petroleum Institute, and multiple national patent certificates. 3. Equipment: The production workshop is equipped with high-precision CNC lathes, thread rolling machines, hydraulic testers, and various inspection instruments. 4. Product Types: Offers J55, K55, N80, L80, P110 oil casings, couplings, short joints, and transition joints. 5. Inventory: Maintains a stock of high corrosion-resistant oil casings such as 80S, 90S, 110S, 1Cr, 3Cr, and 13Cr, with approximately 2,000 tons available year-round. 6. Special Processing: Provides custom processing for direct connection types, tapered types, double-step types, and variable thread types for special sealing threads, as well as copper plating services, producing tens of thousands of special couplings each year. Contact:Bone Email:Bone@dlpoctg.com Whatsapp/WeChat /Tel: +86-18222899636

Minimum Order: 1 bags

Item Details Product Overview L80 oil casing is a high corrosion-resistant pipe specifically designed for oil and gas extraction in harsh environments. The external diameter of this product is 139.7mm, capable of meeting the demands of high-temperature and high-pressure oil wells, particularly excelling in environments containing carbon dioxide and hydrogen sulfide. L80 casing meets API 5CT standards and is widely used in the petroleum and natural gas industry. Technical Specifications - Outer Diameter: 139.7mm - Wall Thickness: 7.11mm (various specifications available upon request) - Material: L80 alloy steel - Yield Strength: ≥ 552 - Tensile Strength: ≥ 655 - Length: Standard length is 9.14 meters (30 feet), can be customized. - Connection Types: Various connection methods available to adapt to different downhole conditions. - Temperature Range: Suitable for use in environments ranging from -20°C to +80°C. - Corrosion Resistance: Optimized for environments containing H₂S and CO₂. Product Features The L80 casing has excellent corrosion resistance, especially suitable for use in high-acid environments. Its unique alloy composition allows it to effectively extend service life when facing corrosive media. Additionally, the high-strength design of the L80 casing enables it to withstand higher downhole pressures, ensuring the safety of oil and gas extraction. Through advanced manufacturing processes and strict quality control, the L80 casing demonstrates exceptional performance in mechanical properties and durability. The surface of the L80 casing undergoes special anti-corrosion treatment, significantly reducing the corrosion rate and extending the service life of the pipe. Application Scenarios The L80 casing is suitable for deepwater oil fields, shale gas wells, and other oil and gas extraction operations in highly corrosive environments. Due to its corrosion resistance, the L80 casing can effectively prevent wellbore corrosion during long-term use, reducing maintenance costs. In practical applications, the L80 casing has become the preferred material for many large oil and gas conies, widely used in complex oil and gas extraction projects. Particularly in gas fields with high concentrations of carbon dioxide and hydrogen sulfide, the L80 casing demonstrates its superior anti-corrosion capabilities. Stock and Delivery We offer ample stock inventory of L80 casing to ensure that customers can obtain the required products in a timely manner. The typical delivery period is 10-20 days, depending on order volume and production arrangements. Our products undergo strict quality inspections to ensure that each pipe meets international standards. We also provide personalized customization services to meet the different needs of customers. Whether standard lengths or specific specifications, we can quickly respond to customer demands. Quality Assurance We commit to providing high-quality L80 oil casing; all products undergo rigorous quality inspections to ensure compliance with API 5CT standards and other international standards. We have a comprehensive after- sales service system to ensure that any issues encountered by customers during use can be resolved promptly. Our goal is to earn customer trust and support through high-quality products and services. Advantages/Features Acomprehensive enterprise engaged in production, processing, sales, technical research and development, and inventory storage. Located in Jinghai District, Tianjin, China, it was founded in 2008 with a registered capital of 11.18 million RMB. The cony holds import and export rights, ISO 9001 quality system certification, API 5CT certification from the American Petroleum Institute, and multiple national patent certificates. The production workshop is equipped with high-precision CNC lathes, thread rolling machines, hydraulic testers, and various inspection instruments. - Product Range: Includes oil casings such as J55, K55, N80, L80, P110, as well as couplings, short joints, and transition joints; high corrosion-resistant oil casings such as 80S, 90S, 110S, L80, 1Cr, 3Cr, and 13Cr are stocked year-round, maintaining an inventory of around 2,000 tons. - Processing Capability: Undertakes custom processing of direct connection types, tapered types, double-step types, and variable thread types for special sealing threads, as well as copper plating services. - Delivery and Quality: Fast delivery and high quality, aimed at reducing costs and increasing efficiency for customers. Our vision is to build an international petroleum pipeline equipment enterprise through integrity and innovation. We welcome leaders and friends from all walks of life to visit and cooperate for mutual development. 1. Established: 2008, with 17 years of experience; registered capital of 11.18 million RMB; workshop area of 8000 square meters; annual foreign trade revenue of 20 million RMB. 2. Certifications: Holds import and export rights, ISO 9001 quality system certification, API 5CT certification from the American Petroleum Institute, and multiple national patent certificates. 3. Equipment: The production workshop is equipped with high-precision CNC lathes, thread rolling machines, hydraulic testers, and various inspection instruments. 4. Product Types: Offers J55, K55, N80, L80, P110 oil casings, couplings, short joints, and transition joints. 5. Inventory: Maintains a stock of high corrosion-resistant oil casings such as 80S, 90S, 110S, 1Cr, 3Cr, and 13Cr, with approximately 2,000 tons available year-round. 6. Special Processing: Provides custom processing for direct connection types, tapered types, double-step types, and variable thread types for special sealing threads, as well as copper plating services, producing tens of thousands of special couplings each year. Contact:Bone Email:Bone@dlpoctg.co , m Whatsapp/WeChat /Tel: +86-18222899636

Minimum Order: 1 bags

Item Details Product Overview High-strength oil casing J55 is a type of pipe widely used in oil and gas extraction, designed to withstand high pressure and high temperature downhole. The external diameter of this product is 114.3mm, and it meets API 5CT standards, suitable for conventional oil and gas extraction, especially performing well in medium-depth oil wells. The J55 casing is made from high-quality alloy steel, ensuring its reliability and durability under complex working conditions. Technical Specifications - Outer Diameter: 114.3mm - Wall Thickness: 6.35mm (various wall thicknesses available upon customer request) - Material: J55 alloy steel - Yield Strength: ≥ 379 MPa - Tensile Strength: ≥ 552 MPa - Length: Typically 9.14 meters (30 feet), can be customized based on customer requirements. - Connection Types: Various connection methods available, including threaded and welded connections to adapt to different downhole conditions. Product Features The high-strength J55 casing has excellent compressive and bending capabilities, able to withstand complex pressure and temperature variations downhole. Its corrosion resistance allows it to perform excellently in environments containing acidic gases (such as H₂S and CO₂), ensuring the safety and stability of oil and gas wells. In addition, the casing surface undergoes special treatment to enhance its wear resistance and extend its service life. J55 casing uses advanced heat treatment processes during manufacturing to ensure uniform mechanical properties and microstructure. Application Scenarios The J55 casing is widely used in conventional oil fields, shale gas wells, and coalbed methane wells, suitable for medium depth and pressure downhole environments. Due to its high strength and good corrosion resistance, the J55 casing effectively prevents wellbore collapse, ensuring the safe extraction of oil and gas. In practical applications, J55 casing is widely used in development projects of oil and gas companies, becoming an important infrastructure material. Stock and Delivery Our company offers stock supply, with ample inventory to ensure that we can meet urgent customer demands. We have advanced production equipment and a strict quality control system to ensure that each pipe meets international standards. Common delivery times are 7-15 days, which can vary based on order volume and production arrangements. We also provide customization services to produce different specifications of casing according to customer special requirements. Quality Assurance We commit to providing high-quality J55 oil casing; all products undergo strict quality inspection to ensure compliance with API 5CT standards and other international standards. We have a comprehensive after- sales service system to ensure that any issues encountered by customers during use can be resolved promptly. Our goal is to earn customer trust and support through high-quality products and services. Advantages/Features Acomprehen , sive enterprise engaged in production, processing, comprehensive enterprise engaged in production, processing, sales, technical research and development, and inventory storage. Located in Jinghai District, Tianjin, China, it was founded in 2008 with a registered capital of 11.18 million RMB. The company holds import and export rights, ISO 9001 quality system certification, API 5CT certification from the American Petroleum Institute, and multiple national patent certificates. The production workshop is equipped with high-precision CNC lathes, thread rolling machines, hydraulic testers, and various inspection instruments. - Product Range: Includes oil casings such as J55, K55, N80, L80, P110, as well as couplings, short joints, and transition joints; high corrosion-resistant oil casings such as 80S, 90S, 110S, L80, 1Cr, 3Cr, and 13Cr are stocked year-round, maintaining an inventory of around 2,000 tons. - Processing Capability: Undertakes custom processing of direct connection types, tapered types, double-step types, and variable thread types for special sealing threads, as well as copper plating services. - Delivery and Quality: Fast delivery and high quality, aimed at reducing costs and increasing efficiency for customers. Our vision is to build an international petroleum pipeline equipment enterprise through integrity and innovation. We welcome leaders and friends from all walks of life to visit and cooperate for mutual development. 1. Established: 2008, with 17 years of experience; registered capital of 11.18 million RMB; workshop area of 8000 square meters; annual foreign trade revenue of 20 million RMB. 2. Certifications: Holds import and export rights, ISO 9001 quality system certification, API 5CT certification from the American Petroleum Institute, and multiple national patent certificates. 3. Equipment: The production workshop is equipped with high-precision CNC lathes, thread rolling machines, hydraulic testers, and various inspection instruments. 4. Product Types: Offers J55, K55, N80, L80, P110 oil casings, couplings, short joints, and transition joints. 5. Inventory: Maintains a stock of high corrosion-resistant oil casings such as 80S, 90S, 110S, 1Cr, 3Cr, and 13Cr, with approximately 2,000 tons available year-round. 6. Special Processing: Provides custom processing for direct connection types, tapered types, double-step types, and variable thread types for special sealing threads, as well as copper plating services, producing tens of thousands of special couplings each year. Contact:Bone Email:Bone@dlpoctg.com Whatsapp/WeChat /Tel: +86-18222899636

Minimum Order: 1 bags

Tianjin Grand Victory Petroleum Equipment Co., Ltd. is a comprehensive enterprise engaged in production, processing, sales, technical research and development, and inventory storage. Located in Jinghai District, Tianjin, China, it was founded in 2008 with a registered capital of 11.18 million RMB. The company holds import and export rights, ISO 9001 quality system certification, API 5CT certification from the American Petroleum Institute, and multiple national patent certificates. The production workshop is equipped with high-precision CNC lathes, thread rolling machines, hydraulic testers, and various inspection instruments. - Product Range: Includes oil casings such as J55, K55, N80, L80, P110, as well as couplings, short joints, and transition joints; high corrosion-resistant oil casings such as 80S, 90S, 110S, L80, 1Cr, 3Cr, and 13Cr are stocked year-round, maintaining an inventory of around 2,000 tons. - Processing Capability: Undertakes custom processing of direct connection types, tapered types, double-step types, and variable thread types for special sealing threads, as well as copper plating services. - Delivery and Quality: Fast delivery and high quality, aimed at reducing costs and increasing efficiency for customers. Our vision is to build an international petroleum pipeline equipment enterprise through integrity and innovation. We welcome leaders and friends from all walks of life to visit and cooperate for mutual development.

Minimum Order: 1 bags

Established: 2008, with 17 years of experience; registered capital of 11.18 million RMB; workshop area of 8000 square meters; annual foreign trade revenue of 20 million RMB. 2. Certifications: Holds import and export rights, ISO 9001 quality system certification, API 5CT certification from the American Petroleum Institute, and multiple national patent certificates. 3. Equipment: The production workshop is equipped with high-precision CNC lathes, thread rolling machines, hydraulic testers, and various inspection instruments. 4. Product Types: Offers J55, K55, N80, L80, P110 oil casings, couplings, short joints, and transition joints. 5. Inventory: Maintains a stock of high corrosion-resistant oil casings such as 80S, 90S, 110S, 1Cr, 3Cr, and 13Cr, with approximately 2,000 tons available year-round. 6. Special Processing: Provides custom processing for direct connection types, tapered types, double-step types, and variable thread types for special sealing threads, as well as copper plating services, producing tens of thousands of special couplings each year.

Minimum Order: 1 bags

In conclusion, 13Cr oil pipes, 80SS seamless steel pipes, 80SS oil pipes, P110S seamless steel pipes, and L80-13Cr seamless steel pipes are all important materials in oil extraction and transportation. Each of these pipes has unique properties and application scenarios that can meet the needs of different oil and gas wells. By choosing and using these pipes appropriately, the efficiency and safety of oil and gas extraction can be effectively improved. Advantages/Features Tianji , n Grand Victory Petroleum Equipment Co., Ltd. is a comprehensive enterprise engaged in production, processing, sales, technical research and development, and inventory storage. Located in Jinghai District, Tianjin, China, it was founded in 2008 with a registered capital of 11.18 million RMB. The company holds import and export rights, ISO 9001 quality system certification, API 5CT certification from the American Petroleum Institute, and multiple national patent certificates. The production workshop is equipped with high-precision CNC lathes, thread rolling machines, hydraulic testers, and various inspection instruments. - Product Range: Includes oil casings such as J55, K55, N80, L80, P110, as well as couplings, short joints, and transition joints; high corrosion-resistant oil casings such as 80S, 90S, 110S, L80, 1Cr, 3Cr, and 13Cr are stocked year-round, maintaining an inventory of around 2,000 tons. - Processing Capability: Undertakes custom processing of direct connection types, tapered types, double-step types, and variable thread types for special sealing threads, as well as copper plating services. - Delivery and Quality: Fast delivery and high quality, aimed at reducing costs and increasing efficiency for customers. Our vision is to build an international petroleum pipeline equipment enterprise through integrity and innovation. We welcome leaders and friends from all walks of life to visit and cooperate for mutual development.

Minimum Order: 1 bags

Kcm Special Steel Co., Ltd we are Manufacturer & Supplier of Stainless Steel Pipe and Tube and Fittings ( elbow, tee, Reducer, Cap, Cross, Flange ) in China wenzhou city 1. Material: 201, 202, 301, 304, 304L, 310S, 316, 316L, 316Ti, 317, 317L, 321, 347,904L Duplex SS, S31803 / 2205, S32750 / 2507 , S32760 Monel400 Inconel600 Incoloy800 Alloy20 Alloy28 Nickel Alloy. Welded Seamless Pipe Supplier Manufacturer 2. Product specification: OD 2 - 1600mm x WT0.8 - 60 mm Square & rectangular. 3. Executive standard: Astm A312m, Astm A269, Astm A213, Astm A790, Astm A789, Astm A815, ANsi B16.9, Ansi B16.28, ANSI B16.11, Jis B2311, Jis B2312, Jis B2313, Din2605, Din 2606, Din 2615, Astm A511, Astm A554, Jis G3463, Jis3446, Jis3448, Jis3459, Din17456, Din17458, Din2462, GB14975, Gb14976, Gb13296 We also have large qty of ready stock, it can support ur urgent project. Contact : Mr. Bob Lee mob & whatsapp : + 86 - 13758498349 web : www.duplexstainlesssteelpipes.com Product catalogue: Duplex Stainless Steel Pipe 304 Stainless Steel Pipe Duplex 2205 Stainless Steel Pipe Super Duplex 2507 Stainless Steel Pipe 316L Stainless Steel Pipe 304L Stainless Steel Pipe 321 Stainless Steel Pipe Duplex s32760 Stainless Steel Pipe 316ti Stainless Steel Pipe 310s Stainless Steel Pipe 904L Stainless Steel Pipe 317L Stainless Steel Pipe 316 Stainless Steel Tubing Nickel Alloy Monel 400 Pipe Nickel Alloy Inconel 600 Pipe Nickel Alloy Inconel 601 Pipe Nickel Alloy Inconel 625 Pipe Nickel Alloy Inconel 718 Pipe Nickel Alloy Incoloy 800H Pipe Nickel Alloy Incoloy 825 Pipe Stainless Steel Welding Neck Flange Stainless Steel Slip On Flange Stainless Steel Blind Flange Stainless Steel Socket Welding Flange Stainless Steel Blind Flange Stainless Steel Pipe Fittings Stainless Steel Butt Weld Elbow ASTM A790 ASTM A789 UNS S31803 Duplex Pipe Tube

Minimum Order: 500

Kcm Special Steel Co., Ltd we are Manufacturer & Supplier of Stainless Steel Pipe and Tube and Fittings ( elbow, tee, Reducer, Cap, Cross, Flange ) in China wenzhou city 1. Material: 201, 202, 301, 304, 304L, 310S, 316, 316L, 316Ti, 317, 317L, 321, 347,904L Duplex SS, S31803 / 2205, S32750 / 2507 , S32760 Monel400 Inconel600 Incoloy800 Alloy20 Alloy28 Nickel Alloy. Welded Seamless Pipe Supplier Manufacturer 2. Product specification: OD 2 - 1600mm x WT0.8 - 60 mm Square & rectangular. 3. Executive standard: Astm A312m, Astm A269, Astm A213, Astm A790, Astm A789, Astm A815, ANsi B16.9, Ansi B16.28, ANSI B16.11, Jis B2311, Jis B2312, Jis B2313, Din2605, Din 2606, Din 2615, Astm A511, Astm A554, Jis G3463, Jis3446, Jis3448, Jis3459, Din17456, Din17458, Din2462, GB14975, Gb14976, Gb13296 We also have large qty of ready stock, it can support ur urgent project. Contact : Mr. Bob Lee mob & whatsapp : + 86 - 13758498349 web : www.duplexstainlesssteelpipes.com Product catalogue: Duplex Stainless Steel Pipe 304 Stainless Steel Pipe Duplex 2205 Stainless Steel Pipe Super Duplex 2507 Stainless Steel Pipe 316L Stainless Steel Pipe 304L Stainless Steel Pipe 321 Stainless Steel Pipe Duplex s32760 Stainless Steel Pipe 316ti Stainless Steel Pipe 310s Stainless Steel Pipe 904L Stainless Steel Pipe 317L Stainless Steel Pipe 316 Stainless Steel Tubing Nickel Alloy Monel 400 Pipe Nickel Alloy Inconel 600 Pipe Nickel Alloy Inconel 601 Pipe Nickel Alloy Inconel 625 Pipe Nickel Alloy Inconel 718 Pipe Nickel Alloy Incoloy 800H Pipe Nickel Alloy Incoloy 825 Pipe Stainless Steel Welding Neck Flange Stainless Steel Slip On Flange Stainless Steel Blind Flange Stainless Steel Socket Welding Flange Stainless Steel Blind Flange Stainless Steel Pipe Fittings Stainless Steel Butt Weld Elbow ASTM A790 ASTM A789 UNS S31803 Duplex Pipe Tube

Minimum Order: 1 bags

Kcm Special Steel Co., Ltd we are Manufacturer & Supplier of Stainless Steel Pipe and Tube and Fittings ( elbow, tee, Reducer, Cap, Cross, Flange ) in China wenzhou city 1. Material: 201, 202, 301, 304, 304L, 310S, 316, 316L, 316Ti, 317, 317L, 321, 347,904L Duplex SS, S31803 / 2205, S32750 / 2507 , S32760 Monel400 Inconel600 Incoloy800 Alloy20 Alloy28 Nickel Alloy. Welded Seamless Pipe Supplier Manufacturer 2. Product specification: OD 2 - 1600mm x WT0.8 - 60 mm Square & rectangular. 3. Executive standard: Astm A312m, Astm A269, Astm A213, Astm A790, Astm A789, Astm A815, ANsi B16.9, Ansi B16.28, ANSI B16.11, Jis B2311, Jis B2312, Jis B2313, Din2605, Din 2606, Din 2615, Astm A511, Astm A554, Jis G3463, Jis3446, Jis3448, Jis3459, Din17456, Din17458, Din2462, GB14975, Gb14976, Gb13296 We also have large qty of ready stock, it can support ur urgent project. Contact : Mr. Bob Lee mob & whatsapp : + 86 - 13758498349 web : www.duplexstainlesssteelpipes.com Product catalogue: Duplex Stainless Steel Pipe 304 Stainless Steel Pipe Duplex 2205 Stainless Steel Pipe Super Duplex 2507 Stainless Steel Pipe 316L Stainless Steel Pipe 304L Stainless Steel Pipe 321 Stainless Steel Pipe Duplex s32760 Stainless Steel Pipe 316ti Stainless Steel Pipe 310s Stainless Steel Pipe 904L Stainless Steel Pipe 317L Stainless Steel Pipe 316 Stainless Steel Tubing Nickel Alloy Monel 400 Pipe Nickel Alloy Inconel 600 Pipe Nickel Alloy Inconel 601 Pipe Nickel Alloy Inconel 625 Pipe Nickel Alloy Inconel 718 Pipe Nickel Alloy Incoloy 800H Pipe Nickel Alloy Incoloy 825 Pipe Stainless Steel Welding Neck Flange Stainless Steel Slip On Flange Stainless Steel Blind Flange Stainless Steel Socket Welding Flange Stainless Steel Blind Flange Stainless Steel Pipe Fittings Stainless Steel Butt Weld Elbow ASTM A790 ASTM A789 UNS S31803 Duplex Pipe Tube

Minimum Order: 1 bags