GB ASTM ASME API 5L Seamless Steel Pipe Line
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 10000 m.t./month
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We are company that have many years experience and professional manager team and engineer team and sales team, sure we will provide you high quality of pipe and professioanl service.
Seamless pipe possesses a hollow section and without seam around the strip steel. It is made with solid bar or steel ingot by perforating machine. As the facture process does not include any welding, seamless pipes are considered to be stronger and more durable. Generally speaking, seamless pipe has better pressure resistance and security than other classifications, and was usually more easily available than welded pipe.
2、Main Features of the Seamless Pipe:
• High working accuracy
• High strength
• Small inertia resistance
• Strong therming dissipine ability
• Good appearance
• Reasonble price
3、Seamless Pipe Specification:
Standard | GB, DIN, ASTM ASTM A106-2006, ASTM A53-2007 |
Grade | 10#-45#, 16Mn 10#, 20#, 45#, 16Mn |
Thickness | 8 - 33 mm |
Section Shape | Round |
Outer Diameter | 133 - 219 mm |
Place of Origin | Shandong, China (Mainland) |
Secondary Or Not | Non-secondary |
Application | Hydraulic Pipe |
Technique | Cold Drawn |
Certification | API |
Surface Treatment | factory state or painted black |
Special Pipe | API Pipe |
Alloy Or Not | Non-alloy |
Length | 5-12M |
Outer Diameter | 21.3-610mm |
Grade | 20#, 45#, Q345, API J55, API K55, API L80, API N80, API P110, A53B |
Standard | ASME, ASTM |
1) Material:20#(ASTM A 106/A53 GRB.API5LGRB,GB),45#,16Mn,10#.
2) Specification range: OD: 21.3-610mm, WT:6-70mm, length:6-12m or according to the requirement of clients.
3) Executive standards: GB, ASME API5L.ASTM A 106/A53,Despite of the above standards, we can also supply seamless steel pipe with standard of DIN, JIS, and so on, and also develop new products according to the requirements of our clients!
4) Surface: black lacquered, varnish coating or galvanized.
5) Ends: Beveled or square cut, plastic capped, painted.
6) Packing: bundles wrapped with strong steel strip, seaworthy packing.
4、Packaging & Delivery:
Packaging Details: | seaworthy package, bundles wrapped with strong steel strip |
Delivery Detail: | 15-30days after received 30%TT |
5、FAQ of Seamless Pipe:
①How is the quality of your products?
We have many years business experience in this area, and we have professional engineer and manager team and sure we can provide you high quality production and professional service.
②How about price?
Yes, we are factory and be able to give you lowest price below market one, and we have a policy that “ for saving time and absolutely honest business attitude, we quote as lowest as possible for any customer, and discount can be given according to quantity”,if you like bargain and factory price is not low enough as you think, just don’t waste your time.Please trust the quotation we would give you, it is professional one.
③Why should you chose us?
We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent customer solution proposals.Our service formula: good quality+good price+good service=customer’s trust
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.
6、Seamless Pipe Images:
- Q: How do you inspect steel pipes for defects?
- The inspection of steel pipes for defects requires a methodical approach that combines visual examination, non-destructive testing (NDT) techniques, and specialized equipment. The following are the typical steps undertaken to inspect steel pipes for defects: 1. Visual Examination: Commence by visually inspecting the external surface of the pipe, searching for any visible indications of defects, including cracks, dents, or corrosion. Particular attention should be given to welds, joints, and areas prone to stress or damage. 2. Ultrasonic Testing (UT): Ultrasonic testing is commonly employed to identify internal defects in steel pipes. This technique involves transmitting ultrasonic waves into the pipe and then interpreting the echoes received. Any irregularities in the internal structure, such as cracks or voids, can be identified and analyzed. 3. Magnetic Particle Inspection (MPI): MPI is a widely utilized technique for detecting defects on or near the surface, such as cracks, seams, or other discontinuities. This method involves applying a magnetic field to the pipe and subsequently applying ferromagnetic particles (usually iron-based) to the surface. These particles accumulate and form visible indications at areas where magnetic flux leakage is caused by defects. 4. Eddy Current Testing (ECT): Eddy current testing is suitable for detecting surface and near-surface defects in conductive materials like steel. This technique involves inducing an alternating current into the pipe and monitoring changes in the electrical currents induced by any present defects. These changes are then analyzed to identify and evaluate the defects. 5. Radiographic Testing (RT): Radiographic testing is conducted by exposing the steel pipe to X-rays or gamma rays and capturing radiographic images of the pipe. This technique allows for the detection of internal defects, such as cracks, porosity, inclusions, or variations in wall thickness. The radiographic images are subsequently examined for any indications of defects. 6. Dye Penetrant Inspection (DPI): DPI is a method used to identify defects on the surface of steel pipes. It involves applying a liquid dye to the surface, which penetrates into any surface cracks or flaws. After sufficient time for the dye to seep in and react, excess dye is removed, and a developer is applied to draw out the dye from the defects, rendering them visible. 7. Pressure Testing: Pressure testing entails pressurizing the steel pipe to a predetermined level and monitoring for any pressure drops or leaks. This test ensures that the pipe can withstand the required pressure without any structural defects. It is worth noting that the choice of inspection technique depends on various factors, such as the type of defect being sought, the size and characteristics of the pipe, and the specific industry standards and regulations. Inspection professionals with expertise in NDT methods and equipment are typically employed to ensure precise and dependable results.
- Q: What materials are used in scaffolding pipes?
- Using 48.3 * 3.6mm steel pipe, the maximum thickness of the steel pipe shall not be less than 3.24mm (there should be no serious corrosion, bending, flattening or crack); the corrosion depth of the old steel pipe shall be in accordance with the construction fastener typeProvisions on the safety technical specification for steel pipe scaffold JGJ130-2011. Take three of the corroded steel tubes, and cut the samples at the most severe parts of the rust. The corrosion depth shall not exceed the prescribed valueUse。 In addition, the approach of the steel pipe should also be sampling retest, qualified before use.
- Q: How are steel pipes sized and classified?
- Steel pipes are sized and classified based on their outer diameter, wall thickness, and length. The sizing is done using standard measurements such as nominal pipe size (NPS) or nominal diameter (DN). Classification is determined by factors such as the pipe's pressure rating, material composition, and intended use. This helps ensure compatibility and proper installation in various applications such as plumbing, construction, and industrial processes.
- Q: What are the different types of coatings used for steel pipes?
- There are several types of coatings commonly used for steel pipes, including epoxy coatings, polyethylene coatings, zinc coatings, and coal tar coatings. Each type of coating offers unique benefits and is used for specific applications to protect the steel pipes from corrosion and other forms of damage.
- Q: What are the common uses of steel pipes in construction?
- Due to their durability and strength, steel pipes are widely used in construction for various purposes. Plumbing systems in buildings commonly rely on steel pipes, which can effectively transport water, gas, and other fluids. Their resistance to corrosion and ability to withstand high pressure make them the preferred choice over alternative materials. Steel pipes are also frequently employed for structural support in construction. They serve as columns or beams, providing buildings with structural integrity and stability. With their capacity to support heavy loads, steel pipes are highly favored in the construction industry. Bridges and highways often incorporate steel pipes into their design. They are utilized to create sturdy and long-lasting bridge supports, guardrails, and signposts. The ability of steel pipes to endure extreme weather conditions and heavy traffic makes them a reliable option for infrastructure projects. Additionally, steel pipes are indispensable for underground utilities like sewer and drainage systems. They offer a robust solution for transporting wastewater and preventing leaks. Moreover, they play a crucial role in constructing underground tunnels and pipelines. Furthermore, steel pipes find application in fencing, scaffolding, and handrails in construction. Their strength, versatility, and ability to withstand harsh environmental conditions make them a preferred choice. In summary, steel pipes are vital components in construction due to their numerous advantages. Their durability, strength, and resistance to corrosion make them a reliable choice for various applications in the construction industry.
- Q: What are the different types of steel pipe coatings for drinking water pipelines?
- There are several types of steel pipe coatings used for drinking water pipelines, including fusion bonded epoxy (FBE), polyurethane (PU), and polyethylene (PE). These coatings provide corrosion protection, prevent leaching of contaminants into the water, and ensure the durability of the pipes.
- Q: Can steel pipes be used for industrial ventilation systems?
- Yes, steel pipes can be used for industrial ventilation systems. Steel pipes are commonly used in such systems due to their durability, resistance to high temperatures, and ability to handle high airflow volumes. They are also cost-effective and can be easily fabricated to meet specific requirements of an industrial ventilation system.
- Q: What are the common challenges faced during steel pipe installation?
- During steel pipe installation, there are several common challenges that may arise. One challenge is ensuring proper alignment and fit between pipe sections. Steel pipes are typically joined together using welding or threading, and if the alignment is not precise, it can result in leaks or weak points in the pipeline. To overcome this challenge, careful measurements and alignment techniques must be used to ensure a secure and tight fit between pipe sections. Another challenge is dealing with corrosion and rust. Steel pipes are susceptible to corrosion, especially when exposed to moisture or corrosive substances. This can lead to degradation of the pipe over time, compromising its structural integrity and increasing the likelihood of leaks. To address this challenge, protective coatings or linings can be applied to the steel pipes to prevent corrosion and extend their lifespan. Additionally, the weight and size of steel pipes can pose a challenge during installation. Steel pipes are heavy, and maneuvering and positioning them can be physically demanding. Moreover, the large diameter of some steel pipes makes it difficult to transport and handle them in tight spaces or through narrow pathways. Overcoming this challenge often requires the use of heavy machinery, such as cranes or forklifts, to lift and position the pipes properly. Lastly, environmental factors can also present challenges during steel pipe installation. Extreme temperatures, harsh weather conditions, or unstable soil conditions can impact the installation process. For example, freezing temperatures can make it challenging to weld the pipes, while unstable soil may require additional reinforcement or stabilization measures to ensure the durability of the pipeline. In conclusion, the common challenges faced during steel pipe installation include ensuring proper alignment, dealing with corrosion and rust, handling the weight and size of the pipes, and addressing environmental factors. Overcoming these challenges requires careful planning, attention to detail, and the use of appropriate techniques and equipment.
- Q: Are steel pipes suitable for conveying fluids?
- Yes, steel pipes are suitable for conveying fluids. Steel pipes have been widely used in various industries for many years due to their durability, strength, and resistance to corrosion. These qualities make steel pipes an ideal choice for conveying fluids such as water, oil, gas, and even hazardous chemicals. The smooth interior surface of steel pipes also allows for efficient flow and prevents clogging, making them suitable for applications that require a continuous and smooth flow of fluids. Furthermore, steel pipes can withstand high pressure and temperature conditions, making them suitable for both high and low-pressure fluid transmission systems. Overall, steel pipes are a reliable and efficient option for conveying fluids in a wide range of industries, including oil and gas, water treatment, chemical processing, and many more.
- Q: What is the difference between steel pipes and polyethylene pipes?
- Steel pipes and polyethylene pipes are two different types of piping materials that have distinct characteristics and applications. Steel pipes are made from a durable and strong alloy of iron and carbon, making them highly resistant to pressure and corrosion. They are commonly used in industrial applications, such as in plumbing, water distribution, and gas transportation. Steel pipes can withstand high temperatures and are known for their longevity and strength. On the other hand, polyethylene pipes are made from a flexible plastic material called polyethylene. They are lightweight and easy to handle, making them a popular choice for residential plumbing and irrigation systems. Polyethylene pipes are resistant to chemicals and have excellent resistance to cracking, which makes them suitable for underground installations. In summary, the main differences between steel pipes and polyethylene pipes lie in their composition, strength, and applications. Steel pipes are stronger and more durable, making them ideal for heavy-duty industrial use. Polyethylene pipes are lightweight, flexible, and chemical-resistant, making them suitable for residential and agricultural applications.
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GB ASTM ASME API 5L Seamless Steel Pipe Line
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 10000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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