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In the daily operation of industrial machinery, rotary shaft oil seals may seem small and unassuming, but they play a critical role in keeping equipment running smoothly. The TG rotary shaft oil seal was developed to meet this very need. It prevents lubricant leaks, blocks dust and contaminants, and extends the service life of machinery. Its applications span pumps, motors, gearboxes, engines, hydraulic systems, industrial machinery, robotic arms, industrial robots, energy equipment, construction machinery, wind turbines, metallurgy, chemical plants, water treatment, high-speed trains, ships, automobiles, and heavy trucks. Materials and Design TG rotary shaft oil seals are made from high-performance elastomers and polymers such as Nitrile Rubber (NBR), Fluororubber (FKM), and Polyurethane (PU). They offer excellent wear resistance, high-temperature tolerance, and chemical stability. Design options include single-lip, double-lip, and multi- lip configurations, capable of handling pressures from low to high. Whether for a high-speed motor shaft or a heavy-duty construction axle, TG seals maintain lubricant integrity and prevent foreign particles from entering bearings. Model Range and Availability The DEDE brand offers an extensive range of TG rotary shaft oil seals, from small precision machinery of just a few tens of millimeters to large industrial shafts spanning several hundred millimeters. For distributors and wholesalers, this means ready stock for rapid delivery and quick response to urgent orders. For non-standard operating conditions, DEDE provides full-service customization, including material selection, structural design, and production testing, ensuring every oil seal fits its intended application precisely. Technical Support and System Optimization With over 30 years of experience in the sealing industry, DEDE does more than provide individual products—it offers technical guidance to optimize entire sealing systems. Proper configuration of oil seals and lubrication can lower maintenance costs and extend service intervals. For example, in wind turbines, optimizing lip angles and material choices reduces the impact of temperature fluctuations on the lubricant film. In high-speed trains and heavy trucks, system-level sealing solutions help minimize downtime and inspection frequency. TG seals, backed by DEDE’s expertise, are more than components—they are a key factor in operational reliability. Corporate Strength and Global Reach DEDE operates a fully equipped manufacturing facility and is recognized as a leader in the sealing industry. The company maintains full-model stock, exporting to over 80 countries, and collaborates with internationally renowned brands. As a provincial technology innovation center, a specialized and innovative enterprise, and a high-tech company, DEDE leads its industrial cluster. This ensures distributors, wholesalers, and industrial clients can rely on consistent product quality, timely delivery, and ongoing technical support. Collaboration Advantages For distributors and wholesalers, TG rotary shaft oil seals are not just high- quality products—they are business opportunities. DEDE provides rapid delivery, large-volume supply, and technical guidance to help partners expand their market reach. Whether selling standard items or offering customized solutions, TG seals meet client demands and enhance competitiveness. TG rotary shaft oil seals deliver stable performance, extensive model options, and technical support, making them a dependable choice for industrial sealing. From small machinery to heavy-duty equipment, from ready stock to fully customized solutions, TG seals provide tangible value for B2B clients. Choosing TG rotary shaft oil seals means opting for professional, reliable, and sustainable sealing solutions.

Minimum Order: 1000

CRA (corrosion-resistant alloy) clad pipe and lined pipe are applied for the anti-corrosion environment, and they have been considered as a new material in the oil and gas pipeline systems. Since they are two kinds of steel material that composite together through bonding processes. (Inner pipe material with expensive stainless 316L or alloy steel Inconel 625, which we call CRA layer. Outer pipe with carbon steel pipe that standards in API 5L or ASTM A106/A53, ASTM A333 Grade 6, etc.) Clad and lined pipes are specialized types of pipes designed to enhance corrosion resistance and improve performance in various applications. CRA refers to corrosion-resistant alloy. The CRA Clad and Lined Steel Pipe is composed of conventional carbon steel or low alloy steel pipes and a corrosion- resistant alloy layer. The CRA layer is metallurgically cladding to the internal or external surface of the steel pipe. Carbon steel or low-alloy steel pipe is called lining steel. Inner CRA layer (0.25~6.0mm) normally such as Stainless steel, Duplex, Nickel alloy, Titanium, Hastelloy, Monel, etc. which are suitable for high corrosion environment. Composition and Structure CRA Clad Pipe consists of two main components: Base Material: A conventional carbon steel or low alloy steel pipe, also called backing steel. CRA Layer: A corrosion-resistant alloy layer metallurgically bonded to the internal (and sometimes external) surface of the steel pipe. Clad and lined pipes are specialized types of pipes designed to enhance corrosion resistance and improve performance in various applications. Clad Pipes: Definition: Clad pipes are made by bonding a layer of corrosion-resistant material (such as stainless steel) to a carbon steel pipe. This combination provides the strength of carbon steel with the corrosion resistance of the outer layer. Applications: Commonly used in industries like oil and gas, chemical processing, and power generation, where exposure to corrosive environments is a concern. Lined Pipes: Definition: Lined pipes have a protective lining (often made of materials like PTFE, rubber, or other polymers) applied to the inner surface of the pipe. This lining acts as a barrier against corrosive substances. Applications: Frequently used in applications involving the transport of aggressive chemicals, slurries, or other materials that could damage the pipe’s interior. Specification of CRA Cladding Pipe Bare Pipe Seamless pipes and welded pipes Standard of Bare Pipe API5L，ASTMA106，ASTMA333 ，ASTMA335, etc CRA Material stainless steel and non-ferrous alloys: SS 304, SS 316, SS 317, duplex, alloy 254, SMO 904, Incoloy alloy 825, Inconel alloy 625, Hastelloy C- 276, Inconel alloy 59, alloy 31, AL6NX, alloy 20, Monel 400, titanium, aluminum and some copper alloys Standard of CRA Material ASTMA240，A263，A264 ，A265，B898，B424，B443， B619，B622，B , 675，B265，B551 Standard of CRA Cladding Pipe API5LD Material Selection and Standard Specification Base materials of the CRA clad steel pipes include seamless or welded line pipes of API, ASTM, etc. The CRA cladding or lining material covers an extensive range of stainless steels and nonferrous alloys. SS 304, SS 316, SS 317, Duplex, Alloy 254 SMO 904, Incoloy alloy 825, Inconel alloy 625, Hastelloy C-276, Inconel alloy 59, Alloy 31, AL6NX, Alloy 20, Monel alloy 400, Titanium, Zirconium, and some copper alloys. Generally, CRA-clad pipes shall be manufactured in accordance with API 5LD. The base material (steel pipe) conforms to API 5L, ASTM A106, ASTM A333, ASTM A335, etc. The cladding material shall conform to ASTM A240, A263, A264, A265, B898, B424, B443, B619, B622, B675, B265, B551. Advantages Excellent corrosion resistance in harsh environments, including high temperature, high pressure, and corrosive fluids. Combines the strength and durability of carbon steel with the corrosion resistance of CRA materials. Cost-effective for large-diameter heavy pipelines, as the thin CRA layer provides enhanced properties while minimizing expenses. Applications CRA Clad Pipes are widely used in various industries: oil and gas industry, Shipbuilding, chemical plants, power plants, and so on. That’s because the CRA layer not only enhances the corrosion resistance of the pipeline but also reduces the cost to a minimum.

Minimum Order: 10 long tons

Carbon steel welded pipe is a type of pipe made by forming a flat piece of carbon steel into a cylindrical shape and then welding the seam together. Carbon steel welded pipe is widely used in various industries due to its strength, durability, and relatively low cost compared to other materials. Carbon steel welded pipe is a type of pipe made by forming a flat piece of carbon steel into a cylindrical shape and then welding the seam together. This process involves using a high-energy source to melt the metal at the edges and fuse them. Carbon steel welded pipe is widely used in various industries due to its strength, durability, and relatively low cost compared to other materials. Types of Welded Steel Pipes: Straight Seam Welded (ERW/LSAW) Steel Pipes: The weld seam runs straight along the length of the pipe. Spiral Welded (SSAW)Steel Pipes: The weld seam is spiraled around the pipe. JS distributes an extensive selection of carbon steel welded pipe, including Electric Resistance Welded (ERW) carbon steel pipe ,SSAW steel pipe, LSAW steel Pipe, and Coated steel pipes — along with their respective flanges and fittings. The material in Stock: Q235B, Q195, Q345B, ERW welding pipes, SSAW welding pipes, LSAW welding pipes Size: DN 15-DN 1000 Thickness: 2.5mm, 2.75mm, 3mm, 3.75mm, 4mm, 4.25mm, 5mm, 5.75mm, etc Length: 6m, 5.8m, 12m, 11.95m, etc. Quantity: 100 tons of each size Other Available material for welding pipes: ASTM A53, A106, A333, and API 5L, ASTM A335 Grades P5 to P91, ASTM A312 Series 300 and 400, etc What Is Welded Carbon Steel Pipe/Tube Application？ Carbon steel welded pipes and tubes are used in high-pressure conditions. They are highly resistant to shock and vibration, making them ideal for transporting fluids. Carbon steel pipes are widely used in a number of industries, such as transporting water and sewage, oil and gas industries, boiler and condenser tubes, high-pressure applications, and chemical processing. – Transporting water and sewage – Oil and gas industries – Boiler and condenser tubes – High-pressure applications – Chemical processing FAQs: 1. What is better, carbon steel vs stainless steel Carbon pipe steel has high strength and economy, suitable for applications with high pressure and load requirements. Stainless steel, due to its chromium content ≥10.5%, will also add nickel, molybdenum, and other alloying elements. Therefore, it has good corrosion resistance. 2. Does carbon steel rust in water Yes. Easy to rust when in direct contact with water. Especially when there is dissolved salt or other corrosive substances in the water, oxidation will occur to form rust. Therefore, surface treatment such as coating a protective layer is required for carbon steel pipes. 3. Based on carbon content, it can be divided into: Industrial pure iron – carbon content Wc < 0.04% iron-carbon alloy; Mild steel – carbon content Wc < 0.25%; Medium carbon steel – carbon content 0.25% < Wc < 0.60%; High carbon steel – carbon content Wc > 0.60%.

Minimum Order: 10 long tons

Dimension: ASME B36.10 Outer Diameter: 1/2” to 20”(DN15-DN500) Pipe End: Beveled, Plain, Threaded Surface: Black painting, Hot dip galvanized as ASTM A123 Packing:Bundle or bulk , seaworthy packing or for the client’s requirement Usage:For conveying gas, water and oil either in the oil or natural gas industries Our Seamless steel pipe (SMLS pipe) is formed by drawing a solid billet over a piercing rod to create the hollow shell, without welding or seam. It is suitable for bending and flanging. The most advantage is increasing the ability to withstand higher pressure. So it is widely used for boiler and pressure vessels, automotive areas, oil wells, and equipment components. Summerize, the seamless steel pipes are applicable to the general structure, mechanical structure, water wall panel, economizer, super-heater, boiler, and heat exchanger with seamless steel tubes, and to transport liquid, gas, oil, etc. JS Steel Pipe-Carbon Steel Seamless Steel Pipe manufacturer and supplier in Cangzhou, Hebei, China Seamless steel pipe specification from Our Factory Grade: API 5L seamless steel pipe: API 5L: GR B, X42, X46, X56, X60, X65, X70 ASTM A53/A106 seamless steel pipe: GR A, GR B, GR CASME SA106: GR.A, GR.B, GR.C ASME SA192 seamless steel pipe: SA192ASME SA209M: T1, T1a ASTM A335 seamless steel pipe: P1, P2, P5, P9, P11, P22, P23 ASTM A333 seamless steel pipe: Gr.1, Gr.3, Gr.4, Gr.6, Gr.7, Gr.8, Gr.9, Gr.10, Gr.11 ASTM A106 Seamless Steel Pipe for High-Temperature Service ASTM A53 Seamless Steel Pipe, Black, and Hot-Dipped, Zinc-Coated DIN 1629 Seamless Steel Pipe Circular Tubes of Non-Alloys Steel with Special Quality Requirement DIN 2391-1 Seamless Steel Pipe JIS G3454 Seamless Steel Pipe for Pressure Service Dimension: ASME B36.10 Outer Diameter: 1/2” to 20”(DN15-DN500) Wall Thickness: SCH40, SCH80 Pipe End: Beveled, Plain, Threaded Surface: Black painting, Hot dip galvanized as ASTM A123 Mill Test Certificate: EN 10204 Seamless Steel Pipe shipped by bulk cargo ship For orders less than 20 tons, we may choose LCL; For orders of the same length of 5.8m or 11.8m, 20ft/40ft containers are ok, for big quantity and not urgent orders, the bulk cargo ship is the cheapest way.

Minimum Order: 10 long tons

In the world of rotating machinery, the smallest components often carry the heaviest responsibility. A gearbox may be built with precision gears, a pump with a perfectly balanced impeller, but if the shaft seal fails, the entire system can be compromised. Lubricant loss, contamination ingress, and unplanned downtime are all too familiar to anyone who has dealt with seal-related failures. Among the many seal designs, the TC rotary shaft oil seal has earned its place as a versatile and dependable choice. Its dual-lip configuration, one lip retaining lubricant, the other blocking dust—makes it a preferred solution in pumps, electric motors, gearboxes, engines, industrial machinery, robotic arms, construction equipment, wind turbines, metallurgy, chemical processing, hydraulic systems, agricultural machinery, water treatment plants, marine vessels, high-speed trains, automobiles, and heavy-duty trucks. Understanding the Structure and Materials A TC seal typically combines a metal case encapsulated in rubber, a primary sealing lip, a dust lip, and a garter spring. The metal case ensures rigidity and precise fit in the housing, while the rubber coating improves sealing against the bore. The primary lip maintains a thin oil film against the shaft surface, preventing leakage. The dust lip shields the system from external contaminants such as dust, water, and abrasive particles. The garter spring, though small, plays a critical role in maintaining consistent radial pressure over time. Material selection. NBR (Nitrile Rubber) offers good wear resistance and compatibility with mineral oils for standard temperature ranges. FKM (Fluoroelastomer) withstands high temperatures and aggressive chemicals, making it suitable for harsh environments. HNBR (Hydrogenated Nitrile Rubber) combines oil, heat, and ozone resistance for heavy-duty, high-load applications. Most TC seals operate within a pressure range of 0.03 to 0.3 MPa, though specialized designs can handle higher pressures when paired with optimized bearing clearance and lubrication systems. Selection Beyond the Datasheet While catalog specifications are useful, real-world selection requires a deeper look at the operating environment. A gearbox in a coastal installation may need a dust lip with enhanced salt spray resistance. Mining equipment, exposed to large, abrasive dust particles, may require reinforced lip materials and stronger spring tension. Distributors often ask, “Can one model fit multiple machines?” From an inventory perspective, that’s appealing. But in practice, tailoring the seal to the application reduces the risk of premature failure and protects long-term customer relationships. Supply Chain Realities In the market, lead time and consistency are non-negotiable. When a production line is down, every hour counts. This is where brands like NQKSF have built their reputation, offering rapid shipment of standard parts with over ten thousand specifications of O-rings and oil seals in stock, ready to meet urgent demands. For non-standard requirements, NQKSF provides end-to-end customization, from material selection and structural design to production testing, ensuring the seal is precisely matched to the operating conditions. With over 30 years of industry experience, their technical team doesn’t just sell products—they help optimize sealing systems, reduce maintenance costs, and improve equipment reliability. Strength Backed by Credentials For wholesalers and distributors, supplier credibility matters. NQKSF operates a fully equipped manufacturing facility, is recognized as a leader in the sealing industry, and maintains a complete range of in-stock models. Their products are shipped to over 80 countries, and the brand is acknowledged as a globally respected name. The company has been awarded Provincial Technology Innovation Center, Specialized and Innovative Enterprise, and High-Tech Enterprise status, and is recognized as a leading company in a specialized industrial cluster. These credentials are not just titles—they reflect the capacity to deliver consistently, whether the order is large, urgent, or highly specialized. A TC rotary shaft oil seal may be a small part, but it plays a decisive role in keeping machinery running smoothly. For buyers, choosing the right supplier is not just about the immediate transaction—it’s about securing reliability, protecting customer trust, and ensuring that every machine in the field performs as intended.

Minimum Order: 1000

Category SMLS Steel Pipes Tags ASTM A53 steel pipe, carbon seamless steel pipe, seamless steel pipe ASTM A53 covers seamless and welded steel pipe with nominal wall thickness. The surface condition is usually black and hot-dipped galvanized. ASTM A53 steel pipe is produced mainly for pressure and mechanical applications, and is also used for transport of steam, water, gas line pipes. ASTM A53 is a steel pipe specification developed by the American Society for Testing and Materials (ASTM). This standard defines the material characteristics of pipes used in plumbing, heating, gas, and other critical applications. Due to their versatility and strength, ASTM A53 steel pipes are widely used in construction, manufacturing, and industrial projects. The standard includes different grades (Grade A and Grade B), types, and formats like welded steel pipe, seamless steel pipe, and galvanized pipes, each serving different purposes. ASTM A53 covers seamless and welded steel pipe with nominal wall thickness. The surface condition is usually black and hot-dipped galvanized. ASTM A53 steel pipe is produced mainly for pressure and mechanical applications, and is also used for transport of steam, water, gas line pipes. Carbon Steel Pipe ASTM A53 Grade BASTM A53 Grade B Carbon Steel PipeASTM A53 Grade B SMLS Steel Pipe ASTM A53 pipe comes in three types (F, E, S) and two grades (A, B). Types of ASTM A53 pipes ASTM A53 Type F Type F pipes are fabricated from pipes fabricated using the furnace-butt- welding method, where the pipe ends are joined through heating. They possess moderate strength and are purchased for general applications, such as water supply pipes. ASTM A53 Type E Type E pipes are electric resistance welded pipes; steel is joined by electrical resistance. They are normally more robust than Type F pipes and serve well where moderate pressure is required. ASTM A53 Type S Type S pipes are seamless and not fabricated through welding operations. They are the toughest of the three types and thus ideal for important applications like those that require high-pressure pipe systems. Production process Seamless steel pipe manufacturing process is divided into hot-rolled and cold seamless pipe. 1. Production process of hot-rolled seamless steel pipe: tube billet → heating → perforation → three-roller/cross-rolling & continuous rolling → de-pipe → sizing → cooling → straightening → hydraulic test → marking → seamless steel pipe with leverage effect detected. 2. Production process of cold drawn seamless steel tubes: tube blank → heating → perforation → heading → annealing → pickling → oiling → multiple cold drawing → blank tube → heat treatment → straightening → hydraulic test → marking → storage. Applications 1. Construction: the pipeline underneath, the groundwater, and the hot water transportation. 2. Mechanical processing, bearing sleeves, processing machinery parts, etc. 3. Electrical: Gas delivery, Hydroelectric power fluid pipeline 4. Anti-static tubes for wind power plants, etc.

Minimum Order: 10 long tons

ASTM A106 grade B pipe is the standard specification for seamless carbon steel pipe used for high-temperature services. It includes three grades: A, B, and C, with Grade B being commonly used. This type of pipe finds applications in various industries, including pipeline systems for oil and gas, water, and mineral slurry transmission. It is also used in boiler systems and for construction and structural purposes. What are CS pipe ASTM A106 grade B seamless pipes? Seamless steel pipes are pipes without a seam or a weld joint. Seamless steel pipes are a tubular section or hollow cylinder, usually but not necessarily of circular cross-section, used mainly to convey substances that can flow — liquids and gases (fluids), slurries, powders, and masses of small solids. JS SMLS steel pipes, CS pipes ASTM A106 grade B are tightly regulated, and all of the pipes we stock have been fully tested to international standards to ensure high quality. CS pipe ASTM A106 grade B in stock Standard: ASTM A53, A106, API 5L, A179, A192, A210, A519, DIN2391, 2448/1629 /1630, etc Material: Gr. A, Gr. B, ST52, etc Size: 10.3- 610mm OD, 1.0-40mm Wall Thickness, 12000mm longest length Pipe Ends: square ends (straight cut, saw cut, and torch cut). or beveled for welding, beveled Surface: Lightly oiled, Hot dip galvanized, Electro galvanized, Black, Bare, Varnish coating/Anti rust oil, Protective Coatings (Coal Tar Epoxy, Fusion Bond Epoxy, 3-layers PE) Test: Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Bending Test, Hardness Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, NDT TEST ( ET TEST, UT TEST) Advantages of ASTM A106 Grade B Steel SMLS Pipe 1. High-Temperature Resistance: ASTM A106 Grade B tubes are specifically designed to withstand high temperatures, making them suitable for use in applications involving elevated operating temperatures. 2. Superior Strength: These tubes exhibit exceptional tensile strength and yield strength, ensuring structural integrity and longevity even in demanding conditions. 3. Corrosion Resistance: ASTM A106 Grade B tubes provide good resistance to corrosion, enhancing their durability and performance in corrosive environments. Typical Uses Suitable for applications which involve the transfer of fluids and gasses at high pressure and temperature levels. Common Industries and Applications Petrochemical Plants Oil & Gas Refineries and Processing Facilities Boilers Ships

Minimum Order: 10 long tons

ASTM A53 seamless steel pipes are pipes without a seam or a weld joint. Mainly to convey substances that can flow — liquids and gases (fluids), slurries, powders, and masses of small solids. ASTM A53 is a steel pipe specification developed by the American Society for Testing and Materials (ASTM). This standard defines the material characteristics of pipes used in plumbing, heating, gas, and other critical applications. Due to their versatility and strength, ASTM A53 steel pipes are widely used in construction, manufacturing, and industrial projects. The standard includes different grades (Grade A and Grade B), types, and formats like welded steel pipe, seamless steel pipe, and galvanized pipes, each serving different purposes. Simple introduction of ASTM A53 seamless pipe ASTM A53 seamless steel pipes are pipes without a seam or a weld joint. ASTM A53 seamless steel pipes are a tubular section or hollow cylinder, usually but not necessarily of circular cross-section, used mainly to convey substances that can flow — liquids and gases (fluids), slurries, powders, and masses of small solids. Our SMLS steel pipes are tightly regulated and all of the pipes we stock have been fully tested to international standards to ensure high quality. Specification of ASTM A53 seamless pipe Standard: ASTM A53, A106, API 5L, A179, A192, A210, A519, DIN2391, 2448/1629 /1630, etc Material: Gr. A, Gr. B, ST52, etc Size: 10.3- 610mm OD, 1.0-40mm Wall Thickness, 12000mm longest length Pipe Ends: square ends (straight cut, saw cut, and torch cut). or beveled for welding, beveled Surface: Lightly oiled, Hot dip galvanized, Electro galvanized, Black, Bare, Varnish coating/Anti rust oil, Protective Coatings (Coal Tar Epoxy, Fusion Bond Epoxy, 3-layers PE) Test: Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Bending Test, Hardness Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, NDT TEST ( ET TEST, UT TEST)

Minimum Order: 10 long tons

API 5L Welded Steel Pipe Type: ERW/LSAW/SSAW pipes Standard: API 5L Grade B, X42, X46, X52, X56, X60, X65, X70, X80 API 5L Welded Steel Pipe Product Specification Level: PSL1 and PSL2 API 5L is a specification developed by the American Petroleum Institute (API) for seamless and welded steel pipes used in pipeline transportation systems in the petroleum and natural gas industries. This specification covers various grades of pipes, including B, X42, X52, X60, X65, and X70. Each grade has specific requirements for chemical composition, mechanical properties, and testing, ensuring that the pipes meet the necessary standards for their intended applications. API 5L pipes are carbon steel pipes used for oil and gas transmissions. They include pipes manufactured in seamless pipes and welded (ERW, SAW) pipes. API 5L is the implementation standard of steel pipe for pipeline transportation systems and specification for line pipe. Key Features and Benefits API 5L pipes offer several key features and benefits, including high strength, durability, and corrosion resistance. These properties make them ideal for use in harsh environments and long-term applications. Additionally, the strict quality control measures and testing requirements ensure that the pipes meet the necessary standards for safety and performance. This reliability is crucial for maintaining the integrity of pipelines and preventing leaks or failures. Steel Grade: BS:1387, EN10217:S185, S235,S235JR, S235 G2H, S275, S275JR, S355JRH, S355J2H, St12, St13, St14, St33, St37, St44, ST52 ASTM A 53: Gr. A, Gr B, Gr C, Gr.D API 5L: A, B, X42, X46, X52, X56, X60, X65 X70 GB/T9711: L175, L210, L245, L290, L320, L360, L290, L320, L360, L390, L415, L450, L485, L555 GB/T3091, SY/T5037, SY/T 5040,CJ/T 3022:Q195, Q215, Q235, Q275, Q295, Q345, 08F, 08, 08AL, 08F, 10F, 10, HG5, DF08 SPHC, M8 Size: Outer Diameter: 219.1mm – 4064mm (8″ – 160″) Wall Thickness: 3.2 mm – 40mm End: plain or beveled API 5L Welded Steel Pipe Manufacturing Types There are 3 welding types: ERW, LSAW and SSAW welding types. HIC Tested API Hot Finished Seamless (HFS) API 5L Cold Drawn or Finished Seamless (CDS) PSL 2 API 5L Electric Resistance Welding (ERW) API 5L PSL2 High-Frequency Induction Welding (HFIW) Carbon Steel API 5L Hot Finished Welding (HFW) API 5L Steel Butt Welded Pipes (BWP) API 5L CS Electric Fusion Welding (EFW) CS API 5L Sub-merged Arc Welding (SAW) API Steel Cold Drawn Electric Resistance Welding (CEW) API Spec 5L Oxy-Acetylene Welding (OAW) API Hand-Welding or Manual Arc Welding (MAW) Applications of API 5L Steel Pipes Onshore and Offshore Pipelines API 5L pipes are used in onshore and offshore pipelines for transporting oil, gas, and water. These pipes ensure safe and efficient transportation, maintaining the integrity of the pipeline and preventing leaks or failures. The high-quality materials and manufacturing processes used in API 5L pipes make them suitable for the demanding conditions encountered in onshore and offshore pipeline applications. Sour Service Applications Pipes used in environments containing hydrogen sulfide (H2S) must meet additional requirements specified in Annex H of API 5L. These requirements ensure that the pipes are resistant to corrosion and cracking, making them suitable for sour service applications. The high-quality materials and manufacturing processes used in API 5L pipes make them suitable for the demanding conditions encountered in sour service applications. Offshore Service Applications Pipes used in offshore environments must meet additional requirements specified in Annex J of API 5L. These requirements ensure that the pipes are durable and can withstand the harsh conditions encountered in offshore environments. The high-quality materials and manufacturing processes used in API 5L pipes make them suitable for the demanding conditions encountered in offshore service applications.

Minimum Order: 10 long tons

API 5L GR.B LSAW steel pipe is widely applied in oil, natural gas, steel structure, power plant, ship building, foundation and piling projects. API 5L grade B steel pipe generally refers to Seamless and welded line pipes used for the transportation of oil and gas from one location to another. These pipes are mainly used in industries such as oil and gas refineries, petrochemical plants. These pipes are manufactured at two product specification levels known as PSL-1 and PSL-2. PSL-1 provides a standard quality level for line pipes. However, PSL-2 pipes have additional requirements for chemical composition, mechanical properties, notch toughness, and additional NDT requirements. API 5L Grade B steel pipe is resistant to cracking under sulphide stress, which makes it ideal for sour service. API 5L Grade. B steel pipe has a long working lifespan, which allows it to be very cost-effective. Due to easy availability and reasonable pricing, API 5L Grade B Seamless Pipe and welded pipe are the first choice for the Oil and gas industries and is used on a large scale in cross-country pipelines. LSAW STEEL PIPECarbon steel LSAW PIPEAPI 5L GR.B LSAW Steel Pipe Hot sales GENERAL Standard: API 5L PSL1/ PSL2, API 2B, EN10219, ASTM A671 CL13, ASTM A672 CL13, ASTM A252 etc. Steel Grade: API 5L:Gr.B,X42,X52,X60,X65,X70,X80, EN10219: S275JRH,S275J0H,S275J2H,S355JRH,S355J0H,S355J2H A671/A672 CL10-CL13:CA55,B65,B70,C70 ASTM A252: GR.2,GR.3 Size:LSAW, DSAW: Outer Diameter: 219mm-1820mm Wall Thickness: 5.0mm-50mm Length: 5mtr-12mtr End: square ends (straight cut, saw cut, and torch cut). or beveled for welding, beveled, Surface: Lightly oiled, Hot dip galvanized, Electro galvanized, Black, Bare, Varnish coating/Anti rust oil, Protective Coatings (Coal Tar Epoxy, Fusion Bond Epoxy, 3-layer PE) Test: Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, X-ray Test. Mill Test Certificate: EN 10204/3.1B Third party inspection : SGS, BV, Lloyds etc. Application: API 5L GR.B LSAW steel pipe is widely applied in oil, natural gas, steel structure, power plant, ship building, foundation, and piling projects.

Minimum Order: 10 long tons

API 5L is a specification developed by the American Petroleum Institute (API) for seamless and welded steel pipes used in pipeline transportation systems in the petroleum and natural gas industries. This specification covers various grades of pipes, including B, X42, X52, X60, X65, and X70. Each grade has specific requirements for chemical composition, mechanical properties, and testing, ensuring that the pipes meet the necessary standards for their intended applications. Carbon steel is more commonly used than any other metal, and has long been admired for its versatility and low cost. our factory have a complete selection of carbon steel pipe and steel tubing in an extraordinary range of grades and specifications. Seamless steel pipe and tubing is stocked in outer diameters (OD’s) through 36”, ERW (Electric Resistance Welded) pipe, including rolled and welded pipe and spiral-weld pipe, is stocked in OD’s through 60”. As a industry steel pipes supplier and exporter, JSFITTINGS inventories multiple specifications, including API 5L (X-grades), ASTM (A106 B/C, A53, A519, A513 Type 5 DOM), and ASME specifications. API 5L Carbon Steel PipeAPI 5L Carbon Steel ssaw PipeAPI 5L Carbon Steel Weld Pipe Seamless and Welded Carbon Products Size range: ½” nominal through 60” OD Wall Thickness up through 4” thick & heavier upon request Specifications & Grades: A-106 Grade B/C SA-106 Grade B/C A-333, Grade 1/6 API 5L & X-Grades through X-80 A-53 Grade B SA-53 Grade B A-519 A-513 Type 5 (DOM) Rolled and Welded A-671 & A672 A-106/SA-106 seamless pipe is one of our most popular products. We carry Schedules STD through XXH and Sch 160. A-106 Grade B/C This American Society for Testing and Materials (ASTM) specification covers seamless steel pipe for high temperature service in the size range of 1/8” NPS to 48” NPS. JS is a stocking distributor of carbon steel pipes to this specification in sizes from ¼” NPS to 36” NPS, specializing in heavy wall pipe. Seamless steel pipe ordered under this specification is suitable for bending, flanging, forming, and welding. Key applications for A106 and SA106 include refineries, power plants, boilers, ship building, and other specialized applications. Pressure pipe applications also include heat exchangers, condenser and boilers. SA-106 Grade B/C This is an ASME specification covering the manufacture and installation of pressure piping and is tightly regulated by the ASME (American Society of Mechanical Engineers) Boiler and Pressure Vessel Code. Pressure piping is generally pipe that must carry pressures greater than 10 to 25 atmospheres, although definitions vary. To ensure safe operation of the system, the manufacture, storage, welding, testing, etc. of pressure piping must meet stringent quality standards. Importance in the Oil & Gas Industry API 5L carbon steel pipes play a crucial role in the oil and gas industry. These pipes are designed to transport petroleum and natural gas over long distances, often through challenging environments. The robust construction and adherence to stringent standards ensure that these pipes can withstand high pressures, extreme temperatures, and corrosive substances. This reliability is vital for maintaining the integrity of pipelines and preventing leaks or failures that could lead to environmental disasters and significant financial losses. Role in Construction and Manufacturing In the construction and manufacturing sectors, API 5L carbon steel pipes are used for various structural applications. Their high strength and durability make them ideal for supporting heavy loads and withstanding harsh conditions. Whether it’s for building frameworks, machinery, or infrastructure projects, these pipes provide the necessary support and stability. Additionally, their versatility allows them to be used in a wide range of applications, from residential buildings to large industrial complexes. Applications in Power Generation Power generation facilities rely on API 5L carbon steel pipes for the transportation of steam, water, and other fluids. These pipes ensure the efficient and reliable operation of power plants, contributing to the generation of electricity. The high-quality materials and manufacturing processes used in API 5L pipes make them suitable for the demanding conditions found in power generation environments. This reliability helps to minimize downtime and maintenance costs, ensuring a steady supply of power.

Minimum Order: 10 long tons

Steel ERW pipe is a type of Resistance pipe that stands apart from welded pipe and DC welded pipe in two different ways, as listed below. Based on the welding frequency, the IF welding is for low frequency, and the ultra-IF welding is for high frequency. In the case of a thin-walled pipe, there is a high-frequency weld is used, typically in the case of contact welding and induction welding. When the usage is for a small-diameter pipe, they make use of DC welding. There is a high-frequency welding process used to manufacture comprehensive pipes and of ERW pipes. For oil and gas storage, the best recommended type is ERW pipes, owing to their quality, ease of transport, and cost. Pipe End: square ends (straight cut, saw cut, and torch cut). or beveled for welding, beveled, Surface: Lightly oiled, Hot dip galvanized, Electro galvanized, Black, Anti- rust oil, Protective Coatings (Coal Tar Epoxy, Fusion Bond Epoxy, 3-layer PE) Packing: Plastic plugs in both ends, Hexagonal bundles of max. 2,000kg with several steel strips, two tags on each bundle, wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips, Plastic caps. Test: Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Bending Test, Hardness Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, NDT TEST ( ET TEST, RT TEST, UT TEST) API 5L steel ERW pipe is for oil and gas industry pipelines, developed for different working environments. The steel line pipe material is generally carbon steel and complies with API SPEC 5L specifications. Applied for the petroleum and natural gas industries, oil industries requirements for transportation and are expected to work in extreme situations, low and high temperatures, corrosion resistance for corrosive environments, and sour services in H2S conditions. Applications of the API 5L ERW steel pipe For Petroleum and natural gas industries, steel pipe for pipeline transportation systems. JS supplied ERW Steel pipe complied to the international standard API 5L, which specified requirements for the manufacture of two product specifications levels (PSL1 and PSL2) of welded line pipe for use in pipeline transportation systems in the oil and gas industries. Why choose us as your carbon steel ERW pipe/tube manufacturer？ When choosing a carbon steel pipe/tube manufacturer, you need to consider many factors, including product quality, price, delivery time, service, etc. The following are our advantages as a carbon steel pipe/tube manufacturer, which can be used as the basis for you to choose us:

Minimum Order: 10 long tons

The 3PE Coated steel pipe has 3-layer coatings: 1. Epoxy primer coating.The first layer with epoxy powder (FBE> 100um). Directly coated at the pipe surface. Ensure the overall coating has good adhesion at higher temperatures. 2 . Copolymer adhesive. Main component for this layer is a polyolefin. The thickness of the adhesive ranges from 170um to 250um.To make sure the top anti- corrosion coating is adhesive at the primer coating and also on the pipe surface. 3 . Anti-corrosion Coating (PE layer). The top layer is extruded polyethylene; the thickness of this layer is from 2.5 mm to 3.7 mm. It is polyethylene, which has advantages in anti-water, electrical resistance, and anti-mechanical damage. It is a very important layer. Coating standard: ANSI/AWWA C104/A21.4 American National Standard for Cement ISO 21809 Petroleum and natural gas industries DIN 30670 Polyethylen coatings of steel pipes and fittings 3PE Anti-corrosion Seamless Coated Steel pipe Application? Due to the characteristics and advantages of the 3PE coated pipe, it is widely used in many kinds of applications such as oil & gas, water transmission, heat transmission, mining, fire-fighting, thermal power station, electric power, communication facilities, highway, chemical pharmaceutical, printing and dyeing, and agricultural applications. And with its further development, the 3PE-coated pipe will play a more and more important role in global development. 3PE Coating Steel Pipes are an excellent solution for customers looking for an anti-corrosion pipeline that can withstand harsh environments. The three-layer polyethylene coating provides excellent protection against corrosion, making our steel pipes durable and reliable. This technology has been proven to extend the lifespan of steel pipes, making it a cost-effective solution in the long run. Additionally, the 3PE coating provides superior insulation and reduces energy loss, making it an ideal choice for transporting fluids in extreme temperatures. Our steel pipes are compatible with a wide range of fluids, making them versatile and convenient for various applications. Trust our experienced team to provide you with the reliable, high-quality steel pipes you need. We provide high-quality steel pipes to customers all over the world Get your price list within 2 hours, now! You can send an email to info@jssteelpipes.com directly. We will quote you within 2 hours after receiving your inquiries.

Minimum Order: 10 long tons

As winter approaches, the need for specialized piping solutions capable of enduring the planet’s harshest environments becomes increasingly critical. Modern pipelines face unprecedented challenges, from the bone-chilling temperatures of Arctic expeditions to the intense heat of desert refineries. JSFITTINGS stands at the forefront as a pivotal provider of advanced steel piping products meticulously engineered to conquer these severe conditions. Our extensive inventory, boasting carbon steel, alloy steel, Duplex, Super Duplex, and an array of exotic alloy products, is specifically curated for projects operating in extreme settings. These materials offer unparalleled resistance to corrosion, elevated temperatures, and immense pressure, making them the definitive choice for Arctic pipelines and desert-based refineries. Our unwavering commitment to technical excellence and uncompromised quality ensures that every product we supply not only meets but exceeds the rigorous demands of these challenging applications. We deliver steadfast solutions for oil and gas rigs, offshore platforms, and other vital energy infrastructure operating under the most extreme conditions imaginable. JSFITTINGS Steel Pipes: Built for Extremes, From Arctic Blasts to Desert Fires Conquering the Arctic: A Battle Against Extreme Cold Arctic environments impose unique and formidable challenges on pipeline operations, where temperatures can plummet to an astonishing -40°C. At these brutal lows, conventional piping materials can become dangerously brittle and highly susceptible to catastrophic fracture. In response, engineers are tirelessly innovating, developing groundbreaking materials and sophisticated techniques specifically tailored for the unforgiving Arctic. Advanced Materials for Unrivaled Low-Temperature Resistance Intensive research is focused on engineering steel alloys with dramatically enhanced low-temperature toughness. These revolutionary materials must exhibit exceptional resistance to both the initiation and propagation of fractures at extreme cold. Key advancements include: Micro-alloyed steels: Featuring meticulously refined grain structures for superior strength. Advanced heat treatment processes: Precisely optimizing material properties for maximum resilience. Strategic incorporation of nickel and other alloying elements: Significantly improving low-temperature ductility. Insulation Innovations: A Shield Against the Cold Effective insulation is absolutely indispensable for maintaining pipeline integrity in Arctic conditions. Pre-insulated pipes, designed to perform flawlessly across an astonishing temperature range from -180°C to +140°C, are a game-changer. These sophisticated pipes typically comprise: A robust carrier pipe, often constructed from high-grade steel. A high-performance insulation layer, such as advanced polyurethane foam. A protective outer casing, shielding against environmental degradation. The Desert’s Crucible: Defying Heat and Corrosion At the opposite end of the spectrum, desert environments present their own complex array of challenges, including blistering heat, abrasive sand erosion, and the constant threat of corrosive substances. Corrosion-Resistant Materials: Standing Up to the Elements For pipelines navigating corrosive desert landscapes, materials like duplex stainless steel and various nickel alloys are gaining immense popularity. These cutting-edge materials offer superior resistance to a multitude of corrosion forms, including: Pitting corrosion: Localized attack forming small holes. Stress corrosion cracking: Cracking under tensile stress and a corrosive environment. Erosion-corrosion: Damage from the combined action of erosion and chemical attack by sand-laden fluids. Protective Coatings and Linings: The First Line of Defense Beyond the intrinsic properties of material selection, advanced protective coatings and linings play a paramount role in safeguarding against corrosion and erosion in desert environments. State-of-the-art coating technologies encompass: Epoxy-based coatings: Enhanced with superior UV resistance for prolonged durability. Ceramic-filled epoxies: Delivering improved abrasion resistance against sand and particles. Thermally-sprayed aluminum: Providing long-term, robust corrosion protection. High-Pressure Environments: Pushing the Limits of Engineering Many extreme environments, whether in the Arctic’s frigid grip or the desert’s fiery embrace, concurrently involve demanding high-pressure conditions. Industries such as oil and gas extraction, power generation, and chemical manufacturing necessitate pipes capable of withstanding immense internal pressures without fail. Material Selection for Uncompromising High-Pressure Applications For high-pressure environments, advanced alloys like chrome-molybdenum steel are the material of choice, celebrated for their exceptional strength and enduring durability. These superior materials can withstand not only staggering pressures but also elevated temperatures, rendering them ideal for a diverse range of extreme conditions. Precision Fabrication Techniques: Crafting Perfection In high-pressure applications, the fabrication process is every bit as critical as the selection of the material itself. Advanced welding techniques, such as narrow-gap welding and electron beam welding, are meticulously employed to guarantee the absolute highest level of joint integrity and reliability. The continuous evolution of piping solutions for extreme environments represents a thrilling frontier of engineering innovation. From the frozen, desolate tundras of the Arctic to the sun-baked, scorching deserts, and from high-pressure deep-sea operations to aggressive industrial processes, the demands placed on modern pipelines are more diverse and profoundly challenging than ever before. By harnessing advanced materials, integrating smart technologies, and pioneering innovative design methodologies, the piping industry is vigorously rising to meet these challenges head-on. As the industry collaboratively strives to persistently push the boundaries of what is conceivable in pipeline engineering, we can anticipate the emergence of even more remarkable solutions in the years to come. These advancements will undeniably enable safer, more efficient, and ultimately more sustainable operations across the globe’s most extreme and demanding environments.

Minimum Order: 10 long tons