LSAW SSAW CARBON STEEL PIPE ASTM API 42'' 46'' 48''

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 1 m.t.

Supply Capability:: 3000 m.t./month

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Packaging & Delivery

Packaging Detail:	Normal exporting packing,in container or bulk vessel or as per clients' request
Delivery Detail:	2 months after confimed contract

Specifications

Large Diameter API 5L X70 PSL2 LSAW Steel Pipe
Grade: X42, X46, X50, X52, X60, B, C
OD: 1.5"-28"
WT: SCH10-SCH160

Large Diameter API 5L X70 PSL2 LSAW Steel Pipe

Specifications:

u Standard: API 5L

u Grade: B, C, X42, X46, X50, X52, X56, X60, X65, X70, X80

u OD: 1.5"-28"

u WT: SCH10-SCH160

u Length: 5-12m

u Ends Finish: plain end, bevel end, grooved end

u Surface Treatment: bare, black varnished, oiled finish, red color, anti-corrosion, 3PE, FBE or epoxy coating

u Technique: hot rolled or cold drawn

u Application: api 5l steel pipe for conveying oil, water, gas

u Invoicing: based on theoretical weight or actual weight

u Payment Terms: L/C at sight, T/T or Western Union

u Trade Terms: FOB, CFR, CIF

u Certification: ABS manufacturing assessment, ABS design assessment, API 5CT, API 5L, DNV manufacturer certificate, ISO9001 quality management system certificate, ISO14001 environment management system certificate, GB/T28001 occupational health and safety management system certificate, A1 class manufacturing license of special equipment certificate, CCS, GL, LR, SGS, TüV, PDE

Q: What are the different methods of pipe protection for steel pipes?: There are several different methods of pipe protection for steel pipes, each serving a unique purpose and providing varying levels of protection. Some of the common methods include: 1. Coatings: Coatings are applied on the external surface of steel pipes to protect them from corrosion and other environmental factors. Coating materials can include various types of paints, epoxies, or polymers. These coatings create a barrier between the pipe surface and the surrounding environment, preventing the steel from coming into contact with corrosive elements. 2. Wrapping: Wrapping involves using a protective material, such as tape or shrink wrap, to cover the steel pipe. This method provides a physical barrier against moisture, chemicals, and other corrosive substances. Wrapping is often used in combination with coatings to enhance the overall protection. 3. Cathodic Protection: Cathodic protection is an electrochemical method used to protect steel pipes from corrosion. It involves connecting the steel pipe to a sacrificial anode, typically made of zinc or magnesium. The anode corrodes instead of the pipe, which helps to prevent the steel from deteriorating. This method is commonly used for buried or submerged pipelines. 4. Thermal Insulation: Thermal insulation is used to protect steel pipes from extreme temperatures. Insulating materials, such as foam or mineral wool, are applied around the pipe to minimize heat transfer. This method is particularly important for pipes carrying hot fluids or exposed to extreme weather conditions. 5. Vibration Dampening: Vibration can cause stress and fatigue on steel pipes, leading to potential damage. To protect against vibrations, various techniques can be employed, such as using vibration damping pads or installing supports and clamps. These methods help to absorb and dissipate the energy generated by vibrations, reducing the risk of pipe failure. 6. Concrete Coating: For pipelines installed underwater or in highly corrosive environments, concrete coating is often used. A layer of concrete or a cement-based mortar is applied to the steel pipe, providing both mechanical protection and resistance to corrosion. It is important to select the appropriate method of pipe protection based on the specific application, environmental conditions, and desired level of protection. Regular inspection and maintenance are also crucial to ensure the long-term integrity of steel pipes.

Q: How are steel pipes used in the manufacturing of conveyor systems?: Steel pipes are commonly used in the manufacturing of conveyor systems as they provide a strong and durable structure for transporting materials. These pipes are used to create the framework and support structure of the conveyor system, allowing for the smooth movement of goods from one place to another. Additionally, steel pipes can be welded together to create longer sections, making them ideal for constructing lengthy conveyor systems.

Q: Is steel pipe made of profiles?: According to the shape of the cross-section, the steel is generally divided into profiles, plates, pipes and metal products in four categories.Therefore, the steel pipe belongs to the pipe, not the profile.

Q: How are steel pipes protected against external impact or mechanical damage?: Various methods are employed to protect steel pipes from external impact or mechanical damage. One commonly utilized technique involves applying a protective coating onto the pipe's surface. This coating acts as a barrier, preventing direct contact between the pipe and external objects or forces. Coatings such as epoxy, polyethylene, or polyurethane are frequently chosen due to their excellent resistance to impact and abrasion. Another method of protection involves the use of pipe supports or clamps. These supports are positioned at regular intervals along the pipe's length, ensuring stability and minimizing excessive movement or vibration. They help distribute the load and absorb any external impacts, thus reducing the risk of mechanical damage. Additionally, steel pipes can be reinforced by wrapping them with materials like fiberglass, carbon fiber, or kevlar. These reinforcement materials provide an extra layer of strength and durability, enhancing the pipes' resistance to external impact and mechanical damage. Furthermore, burying the pipes underground or installing them within protective casings can offer an additional layer of protection. This measure shields the pipes from direct contact with external objects, reducing the potential for damage caused by accidental impacts or environmental factors. In conclusion, a combination of protective coatings, supports, reinforcements, and appropriate installation methods ensures that steel pipes are safeguarded against external impact or mechanical damage. This effectively extends their lifespan and maintains their structural integrity.

Q: How do you protect steel pipes from rusting?: Steel pipes can be protected from rusting by applying a protective coating such as paint or zinc coating. Additionally, using corrosion inhibitors, maintaining proper drainage, and keeping the pipes dry can help prevent rust formation. Regular inspection and maintenance are also crucial to identify and address any potential issues before they escalate.

Q: What are the different types of steel pipe end connections?: There are several types of steel pipe end connections, including threaded, socket weld, butt weld, flanged, and grooved connections.

Q: What are the different methods of joining steel pipes together?: There are multiple techniques for connecting steel pipes, each with its own pros and cons. 1. Welding, the most commonly used method, involves heating and applying pressure to fuse the pipe ends. This creates a robust joint, but it necessitates skilled labor and specialized equipment. 2. Threaded connections involve threading the ends and using fittings to connect the pipes. This method is relatively simple and quick, but it may not be as strong as welding and can be prone to leakage if not sealed properly. 3. Flanged connections involve using flanges and bolts to connect the pipes. This allows for easy disassembly and reassembly, making it suitable for applications that require frequent maintenance. Flanged connections are also highly resistant to leakage. 4. Compression fittings involve compressing a ring or ferrule onto the pipe to create a tight seal. This method is straightforward and does not require heat or welding, making it ideal for applications where heat or sparks are prohibited. 5. Grooved connections involve cutting grooves into the pipe ends and using mechanical couplings to secure them. This method is fast, reliable, and allows for easy assembly and disassembly. Grooved connections are commonly used in fire protection systems. 6. Brazing, similar to welding, involves heating the pipe ends and adding filler material to join them. This method is often used for smaller diameter pipes and provides a strong joint, but it requires a high-temperature torch and skilled labor. Each method has its own advantages and is suitable for different applications. The choice of joining method depends on factors such as required strength, ease of installation, maintenance requirements, and pipe type.

Q: How are steel pipes used in the manufacturing of solar power systems?: Steel pipes are commonly used in the manufacturing of solar power systems for various purposes. They are used as structural supports for solar panels, providing stability and durability. Additionally, steel pipes are often utilized for the transportation of fluids such as water or heat transfer fluids, enabling the efficient circulation of these substances within the solar power system.

Q: Can steel pipes be used for gas transmission pipelines?: Yes, steel pipes can be used for gas transmission pipelines. Steel is a commonly used material for gas pipelines due to its strength, durability, and resistance to corrosion. Additionally, steel pipes can withstand high pressure and temperature conditions, making them suitable for transporting natural gas over long distances.

Q: What is the difference between internal threading and external threading of steel pipes?: Internal threading and external threading are two different methods used to create threads on steel pipes. The main difference between them lies in the location of the threads. Internal threading refers to the process of cutting threads on the inside surface of a steel pipe. This method involves using a tool or a die to remove material from the inner diameter of the pipe, creating a helical groove. The resulting threads can be used to connect the pipe to other components, such as fittings or valves. On the other hand, external threading involves cutting threads on the outside surface of a steel pipe. This process usually requires the use of a threading die or a lathe to remove material from the outer diameter of the pipe, leaving behind a helical groove. The external threads allow the pipe to be connected to other components or fittings that have corresponding internal threads. The choice between internal and external threading depends on the specific application and the requirements of the project. Internal threading is often preferred when the pipe needs to be connected to components that have external threads, such as fittings or valves. External threading, on the other hand, is typically used when the pipe needs to be connected to components with internal threads, or when the pipe is intended to be screwed into a threaded hole or coupling. In summary, the main difference between internal threading and external threading of steel pipes is the location of the threads – internal threads are cut on the inside surface of the pipe, while external threads are cut on the outside surface. The choice between these methods depends on the specific application and the type of connections required.

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