High quality API 5L GR.B Seamless Steel Pipe
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 30 m.t.
- Supply Capability:
- 5000 m.t./month
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1、Structure of Seamless Pipe:
Seamless pipe is made with steel bar by perforating machine. It holds a hollow section and there is no seam around. Resulting from the facture process, seamless pipes are of better pressure resistance than other molds, and was usually more easily available and safe than other pipes. We are factory and definitely will satisfy your demand.
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 test on every pipe before delivery. You can get any quality certification or testing report from us. Our products are strictly in accordance with international standard. If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.
②How about the price?
Yes, we are factory and offering you the lowest price in the market. Speed and honesty are our target. No hesitate. 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 choose us?
Think of our quality and price. They are charming. SGS test / Customer inspection / Third party inspection is OK. We are factory. So we can make any pipe you need in accordance to your requirement. That's attaracting, right?
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: How are steel pipes threaded for connection?
- Steel pipes are threaded for connection using a threading machine that cuts grooves into the pipe's outer surface. The machine rotates the pipe while a die cuts the threads, creating a spiral pattern. This threading allows pipes to be securely connected by screwing them together, providing a tight and leak-free joint.
- Q: What are the different methods of repairing damaged steel pipes?
- There are several methods for repairing damaged steel pipes, including welding, epoxy coatings, pipe wrapping, and pipe lining. Welding involves fusing the damaged sections of the pipe using heat and specialized equipment. Epoxy coatings are applied to the damaged area to create a protective layer and restore the pipe's integrity. Pipe wrapping involves applying specialized tapes or wraps around the damaged area to provide structural support. Pipe lining involves inserting a new pipe into the damaged one, creating a seamless and durable solution. The appropriate method depends on the extent and location of the damage, as well as other factors such as cost and time constraints.
- Q: What are the different methods of pipe lining for steel pipes?
- Some of the different methods of pipe lining for steel pipes include slip lining, cured-in-place pipe lining (CIPP), pipe bursting, and sliplining. Slip lining involves inserting a smaller diameter pipe into the existing steel pipe, while CIPP involves inserting a resin-impregnated liner into the pipe and curing it in place. Pipe bursting involves breaking the existing steel pipe and replacing it with a new pipe, while sliplining involves inserting a new pipe into the existing steel pipe without breaking it.
- Q: Are steel pipes suitable for underground cable protection?
- Yes, steel pipes are suitable for underground cable protection. Steel pipes provide excellent durability and strength, making them ideal for protecting cables from external factors such as physical damage, moisture, and corrosion. They are able to withstand the weight of the soil and any potential pressure from above, ensuring the cables remain secure and protected. Additionally, steel pipes can be easily welded or connected to create a continuous and seamless conduit, further enhancing their effectiveness in underground cable protection.
- Q: What is the difference between steel pipe and round steel?
- Widely used in the manufacture of structural and mechanical parts, such as oil drilling pipe, automobile transmission shaft, bicycle frame and steel scaffolding used in construction. Making ring parts with steel tubes can improve data application rate, simplify manufacturing process, save data and work hours, such as rolling bearings, rings, Jack sleeves, etc., and have been widely used in steel pipe manufacture.
- Q: How do steel pipes handle water hammer in high-rise buildings?
- Steel pipes in high-rise buildings are designed to handle water hammer by incorporating various features. Firstly, these pipes are often equipped with pressure relief valves or surge tanks that absorb and dissipate the sudden pressure changes caused by water hammer. Additionally, engineers use techniques such as proper pipe sizing, installation of air chambers, and use of flexible connectors to minimize the effects of water hammer. These measures help to reduce the sudden pressure spikes and prevent damage to the pipes and other plumbing components in high-rise buildings.
- Q: What are the common sizes of steel pipe fittings?
- Depending on the particular application and industry regulations, the sizes of steel pipe fittings can vary. Nevertheless, there are numerous standard sizes that are commonly utilized in various industries. These sizes encompass a range from ¼ inch to 48 inches in diameter. Among the most frequently used sizes are ½ inch, ¾ inch, 1 inch, 1 ¼ inch, 1 ½ inch, 2 inch, 2 ½ inch, 3 inch, 4 inch, 6 inch, 8 inch, 10 inch, 12 inch, 14 inch, 16 inch, 18 inch, 20 inch, 24 inch, 30 inch, 36 inch, 42 inch, and 48 inch. These sizes are often obtainable in different lengths to accommodate diverse installation requirements. To determine the appropriate size of steel pipe fittings for a specific project, it is crucial to refer to industry standards and specifications.
- Q: What is the difference between steel pipe and concrete pipe?
- Steel pipe and concrete pipe are commonly used for various applications, but they have significant differences in material composition and properties. To begin with, the primary distinction lies in the materials utilized to manufacture these pipes. Steel pipes consist of steel, an alloy of iron and carbon. Conversely, concrete pipes are composed of a mixture of cement, aggregate (such as sand or gravel), and water. Additionally, steel pipes are renowned for their strength and durability. They can withstand high pressure, making them suitable for transporting fluids or gases under high pressure. Steel pipes also possess high resistance to corrosion, which is advantageous in environments exposed to moisture or chemicals. In contrast, concrete pipes are not as sturdy as steel pipes and are more prone to cracking or damage under high pressure. Nevertheless, they can still handle moderate pressure loads and are often employed in drainage systems or sewage applications. Another noteworthy difference is the installation process. Steel pipes are typically joined together through welding techniques like butt welding or socket welding, creating a seamless and robust connection between the pipes. Conversely, concrete pipes are often installed using rubber or gasketed joints, which are simpler to assemble and disassemble. Cost is another factor where steel and concrete pipes diverge. Steel pipes tend to be more expensive due to the higher cost of steel as a raw material and the additional labor required for welding and fabrication. On the other hand, concrete pipes are generally more cost-effective as the materials used in their production are more readily available and the installation process is simpler. In summary, the main disparities between steel pipes and concrete pipes revolve around their material composition, strength, resistance to corrosion, installation process, and cost. Steel pipes offer superior strength and durability, making them suitable for high-pressure applications and environments prone to corrosion. Concrete pipes, while not as robust, are cost-effective and commonly used in drainage systems or sewage applications.
- Q: Can steel pipes be bent or shaped to meet specific requirements?
- Yes, steel pipes can be bent or shaped to meet specific requirements. The process of bending or shaping steel pipes is known as pipe bending. It involves using specialized machinery and techniques to manipulate the pipe into the desired shape. Various methods can be employed, including hot bending, cold bending, and induction bending. The choice of method depends on factors such as the size and thickness of the pipe, the required bend radius, and the specific application. Pipe bending is commonly used in industries such as construction, oil and gas, automotive, and manufacturing to create custom pipe configurations that fit specific requirements and allow for efficient installation and functionality.
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High quality API 5L GR.B Seamless Steel Pipe
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 30 m.t.
- Supply Capability:
- 5000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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