Welded Steel Tube Professional Supplier Steel Pipes
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 10000 m.t./month
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Welded Steel Tube China Professional Supplier Steel Pipes
Product Description:
Structure of Welded Steel Tube ASTM DIN1829:
Welded Steel Tube is formed by drawing a solid billet over a piercing rod to create the hollow shell. 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 welded pipe and professioanl service.
Main Features:
• High manufacturing accuracy
• The higher strength
• The small inertia resistance
• Strong heat dissipation ability
• Good visual effect
• Satisfy price
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) Excutive 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.
- Q:Are steel pipes affected by UV rays?
- Yes, steel pipes can be affected by UV rays. Exposure to UV rays can cause the steel to degrade and corrode over time. Therefore, it is important to protect steel pipes from direct sunlight and UV radiation to prolong their lifespan and maintain their structural integrity.
- Q:What is the minimum temperature that steel pipes can handle?
- The minimum temperature that steel pipes can handle depends on the specific grade and composition of the steel. Generally, steel pipes can handle extremely low temperatures without experiencing any significant issues. In fact, many types of steel are specifically designed to withstand extremely cold temperatures, making them suitable for various applications in industries such as oil and gas, construction, and cryogenics. However, it is important to note that at extremely low temperatures, steel may become more brittle, which can affect its mechanical properties. Therefore, it is essential to carefully select the appropriate grade of steel and consider any specific requirements or limitations for the intended application when determining the minimum temperature that steel pipes can handle.
- Q:How are steel pipes insulated to prevent heat gain?
- Steel pipes are insulated to prevent heat gain by using materials with low thermal conductivity, such as fiberglass or mineral wool, which are wrapped around the pipes. This insulation layer acts as a barrier, reducing the transfer of heat from the surroundings to the pipes, thereby minimizing heat gain. Additionally, a vapor barrier may be applied over the insulation to prevent moisture ingress, which could further impact the insulation's effectiveness.
- Q:How are steel pipes used in the manufacturing industry?
- Steel pipes are used in the manufacturing industry for a wide range of applications, including the transportation of fluids and gases, structural support in buildings and infrastructure, and as a material for heat exchangers and boilers. They are also utilized in the production of various machinery and equipment, such as conveyors, cranes, and industrial piping systems. Overall, steel pipes play a crucial role in ensuring efficient and reliable operations across numerous manufacturing processes.
- Q:How do you clean and maintain steel pipes?
- To clean and maintain steel pipes, start by removing any dirt, dust, or debris using a soft cloth or brush. Then, use a mild detergent mixed with water to wash the pipes thoroughly. Rinse them with clean water and dry them completely to prevent rusting. Regularly inspect for any signs of corrosion or damage, and promptly address any issues. Applying a rust-resistant coating can also help in maintaining the pipes' longevity.
- Q:What is the difference between hot-dipped galvanized and electro-galvanized steel pipes?
- Hot-dipped galvanized and electro-galvanized steel pipes are both types of steel pipes that have undergone a galvanization process to protect them from corrosion. However, there are some key differences between the two processes. Hot-dipped galvanized steel pipes are immersed in a molten zinc bath, which results in a thick coating of zinc being applied to the surface of the steel. This process creates a durable and long-lasting corrosion-resistant barrier. The thickness of the zinc coating can vary, but it is generally thicker than that of electro-galvanized steel pipes. On the other hand, electro-galvanized steel pipes are coated with a thin layer of zinc using an electroplating process. This process involves passing an electric current through the steel pipes while they are immersed in a zinc solution. The zinc particles are then deposited onto the surface of the steel, creating a thin and uniform protective barrier. One of the main differences between these two processes is the thickness of the zinc coating. Hot-dipped galvanized steel pipes have a thicker and more robust coating, making them more suitable for applications in harsh environments or where the pipes will be exposed to corrosive substances. Another difference is the appearance of the pipes. Hot-dipped galvanized steel pipes typically have a dull grayish finish, while electro-galvanized steel pipes have a smoother and more polished appearance. In terms of cost, electro-galvanized steel pipes are generally more economical compared to hot-dipped galvanized steel pipes. This is because the electroplating process is less labor-intensive and requires less zinc. Overall, the choice between hot-dipped galvanized and electro-galvanized steel pipes depends on the specific application and the level of corrosion resistance required. Hot-dipped galvanized steel pipes are typically used in more demanding environments, while electro-galvanized steel pipes are suitable for less corrosive applications where cost-efficiency is a priority.
- Q:How are steel pipes used in the manufacturing of sewage treatment plants?
- Steel pipes are used in the manufacturing of sewage treatment plants for various purposes, including the transportation of wastewater, the distribution of chemicals and additives, and the construction of various components such as tanks, pumps, and pipelines. Steel pipes are preferred due to their strength, durability, and resistance to corrosion, ensuring reliable and long-lasting infrastructure for the efficient operation of sewage treatment plants.
- Q:Can steel pipes be used for underground steam pipelines?
- Indeed, underground steam pipelines can indeed utilize steel pipes. Given their robust and enduring characteristics, steel pipes are frequently employed for an assortment of pipelines, such as those carrying steam. Their capacity to endure elevated temperatures and pressures renders them suitable for the subterranean transportation of steam. Furthermore, steel pipes exhibit outstanding resistance to corrosion, a crucial feature for subterranean pipelines that encounter moisture and potentially corrosive substances in the soil. In summary, steel pipes represent a dependable and widely embraced option for underground steam pipelines.
- Q:How do you inspect steel pipes for defects?
- Inspecting steel pipes for defects involves a systematic approach that combines visual inspection, non-destructive testing (NDT) techniques, and specialized equipment. Here are the steps typically followed to inspect steel pipes for defects: 1. Visual Inspection: Start by visually examining the external surface of the pipe, looking for any visible signs of defects such as cracks, dents, or corrosion. Pay close attention to welds, joints, and areas susceptible to stress or damage. 2. Ultrasonic Testing (UT): Ultrasonic testing is commonly used to detect internal defects in steel pipes. It involves using ultrasonic waves that are sent into the pipe and then interpreted based on the echoes received. Any irregularities in the internal structure, like cracks or voids, can be identified and analyzed. 3. Magnetic Particle Inspection (MPI): MPI is a widely used technique to detect surface and near-surface defects such as cracks, seams, or other discontinuities. This method involves applying a magnetic field to the pipe and then applying ferromagnetic particles (usually iron-based) on the surface. These particles will accumulate and form visible indications at the areas of magnetic flux leakage 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. It involves inducing an alternating current into the pipe and monitoring the changes in the electrical currents induced by any defects present. These changes are then analyzed to identify and evaluate the defects. 5. Radiographic Testing (RT): Radiographic testing is performed by exposing the steel pipe to X-rays or gamma rays and capturing the resulting radiographic images. This technique allows for the detection of internal defects such as cracks, porosity, inclusions, or wall thickness variations. The radiographic images are then examined for any indications of defects. 6. Dye Penetrant Inspection (DPI): DPI is a method used to detect surface-breaking defects in steel pipes. It involves applying a liquid dye on the surface, which penetrates into any surface cracks or flaws. After allowing the dye to seep in and adequately react, excess dye is removed, and a developer is applied to draw out the dye from the defects, making them visible. 7. Pressure Testing: Pressure testing involves 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 important to note that the inspection technique used depends on various factors, such as the type of defect being sought, the size and nature of the pipe, and the specific industry standards and regulations. Inspection professionals with expertise in NDT methods and equipment are typically employed to ensure accurate and reliable results.
- Q:Can steel pipes be used for oil wells?
- Yes, steel pipes can be used for oil wells. Steel pipes are commonly used in the oil and gas industry due to their strength, durability, and resistance to corrosion. They are able to withstand the high pressures and temperatures that are encountered in oil well drilling and production. Steel pipes are also able to transport oil efficiently and safely from the well to the surface, making them a preferred choice for oil well infrastructure. Additionally, steel pipes can be easily welded and threaded, allowing for easy installation and maintenance in oil well applications.
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Welded Steel Tube Professional Supplier Steel Pipes
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 10000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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