Seamless steel pipe ASTM A106/API 5L/ASTM A53 GR.B high quality

Seamless steel pipe ASTM A106/API 5L/ASTM A53 GR.B high quality

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 10 m.t.

Supply Capability:: 5000 m.t./month

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1. Commodity Name: Seamless steel pipe

2. Standard: API,GB,ASTM,ASME,DIN

3. Quality grade: 10#, 20#, A106B, A53B, API 5L B, Q235, Q345, ST37-2, ST 45, ST52.etc.

4. Dimension:

OD: 1/2"-24"

WT: 2.5-80mm, SCH10~SCH40~XXL

length: 5.8m,6m,8m,9m,12m

5. Technique: Hot Rolled/Cold Rolled/ Cold Drawn

6. application

carbon seamless steel pipes are widely used in gas, water and oil, transpotation;constructions;Bridge,highway,windows of model steel door; building materials;fences;heating facilities Fluid Pipe;conduit pipe,scaffolding pipe.etc.

7. Payment Terms: L/C D/A D/P T/T

8.packing and shipment

Packaged in bundles,as per customers' requirements, it can also bepackagesd as beveled ends, typed marking, black painting, plastic caps protection,woven bags packing

For 20" container the max length is 5.8m; For 40" container the max length is 12m. other options are available based on customer requests. Please discuss when placing orders.

9. Surface: painted with varnish;

10. Plastic caps at ends.

11. Tolerance: OD +1%/-1%

WT +12.5%/-10%

12. Chemical composition:

Models of Steel Pipes	Chemical Component
Steel 20 (ASTM A106B)	C	Si	Mn	P	S	Cu	Ni	Cr
Steel 20 (ASTM A106B)	0.17~0.24	0.17~0.37	0.35~0.65	0.035max	0.035max	0.25max	0.25max	0.25max
Steel45 (ASTM 1045)	0.42~0.50	0.17~0.37	0.50~0.80	0.035max	0.035max	0.25max	0.25max	0.25max
16Mn(Q345B)	0.12~0.20	0.20~0.55	1.20~1.60	0.035max	0.035max	0.25max	0.25max	0.25max
45Mn2 ( ASTM1345)	0.42~0.49	0.17~0.37	1.40~1.80	0.035max	0.035max	0.3max	0.3max	0.30max

Q: What is the dimensional stability of steel pipes?: The dimensional stability of steel pipes refers to their ability to retain their shape and dimensions under various conditions and external forces. Steel pipes are known for their excellent dimensional stability due to the inherent properties of the material. Steel is a strong and rigid material, which allows it to maintain its shape even under high pressure or changes in temperature. This makes steel pipes highly suitable for applications that require stability and resistance to deformation, such as in plumbing, oil and gas pipelines, and structural supports. In addition to its inherent strength, steel pipes also exhibit dimensional stability due to their manufacturing processes. Steel pipes are typically produced through methods like seamless or welded construction, which ensures their uniformity and consistent dimensions throughout the length of the pipe. This manufacturing precision contributes to the dimensional stability of steel pipes. Moreover, steel pipes are often treated with various protective coatings to enhance their resistance to environmental factors. These coatings, such as galvanization or epoxy coatings, not only protect against corrosion but also help maintain the dimensional stability of the pipes by providing an additional layer of strength and durability. Overall, the dimensional stability of steel pipes is one of the key reasons for their widespread use in different industries. Their ability to maintain their shape and dimensions, even under challenging conditions, ensures reliable and long-lasting performance in various applications.

Q: How to calculate the maximum bending stress of steel pipe? Is there a list of the maximum flexural normal stresses for steel pipes of different materials and diameters?: The maximum flexural normal stress is calculated as: Sigma =M/ (gamma x*Wnx).Of which: M is the maximum bending moment of the steel tube;Gamma X - the plastic development coefficient of the cross section; for the cross section of the steel tube, 1.15,

Q: What is the flexibility of steel pipes?: Steel pipes have a high level of flexibility, allowing them to be easily bent and shaped to fit different angles and curves. This flexibility makes steel pipes a versatile choice for various applications, including plumbing, construction, and industrial processes.

Q: How are steel pipes threaded?: Steel pipes are typically threaded using a threading machine or a hand-held die. The process involves cutting grooves on the outer surface of the pipe to create a spiral pattern, allowing the pipe to be easily connected to fittings or other pipes.

Q: What are the different methods of joining steel pipes for high-pressure applications?: Some of the different methods of joining steel pipes for high-pressure applications include welding, threaded connections, flanged connections, and mechanical couplings. Welding involves fusing the pipes together using heat, making it a strong and permanent connection. Threaded connections involve screwing the pipes together using threads on the ends, which can be easily assembled and disassembled. Flanged connections involve using flanges and bolts to connect the pipes, providing a secure and leak-proof connection. Mechanical couplings use mechanical devices such as clamps or compression fittings to join the pipes, allowing for quick and easy installation and removal.

Q: What is a valve and how is it used in steel pipes?: A valve is a device that controls the flow of fluid or gas by opening, closing, or partially obstructing passageways within a pipeline system. In the context of steel pipes, valves are used to regulate the flow of liquid or gas through the pipe network, allowing for control over the volume, pressure, and direction of the fluid. This ensures efficient and safe operation of the steel pipes by preventing excessive flow, leakage, or backflow. Additionally, valves in steel pipes enable the isolation and maintenance of specific sections of the pipeline without interrupting the entire system.

Q: What is the role of steel pipe manufacturers in sustainable development?: Steel pipe manufacturers play a crucial role in sustainable development by promoting environmental responsibility, resource conservation, and reducing carbon emissions. They contribute to sustainable development by adopting cleaner production techniques, recycling waste materials, and investing in research and development to improve energy efficiency. Additionally, they prioritize worker safety and adhere to stringent quality standards, ensuring the durability and longevity of their products, which further supports sustainable construction practices.

Q: How are steel pipes used in the food and beverage industry?: Steel pipes are commonly used in the food and beverage industry for various applications such as transporting liquids and gases, including water, beverages, and food ingredients. They are chosen for their durability, resistance to corrosion, and ability to maintain hygiene standards. Steel pipes are used to facilitate the flow of materials throughout the production process, ensuring safe and efficient operations in the food and beverage industry.

Q: Do steel pipes require maintenance?: Maintenance is necessary for steel pipes. Despite their durability and long lifespan, steel pipes can still experience wear and tear over time. To ensure optimal performance and extend their lifespan, regular maintenance is crucial. Inspecting the pipes for damage or corrosion is an important part of maintenance. Rust and corrosion can affect steel pipes, especially in high humidity or water-exposed environments. Regular inspections enable early detection of any problems, preventing more extensive damage and costly repairs in the future. Cleaning the pipes is another maintenance task. Over time, debris, sediment, or mineral deposits can accumulate in steel pipes. These build-ups can restrict fluid flow or impact the quality of transported materials. Regular cleaning removes these obstructions and maintains pipe efficiency. Periodic lubrication or coating may be necessary depending on the pipe's use. Lubricants and coatings reduce friction, prevent corrosion, and enhance durability. During maintenance, these can be applied to ensure smooth functioning and resistance to corrosion. In summary, regular maintenance is vital for steel pipes to maximize performance, prevent damage, and extend their lifespan. By investing time and effort in maintenance, potential issues can be identified and addressed early on, ultimately saving time and money in the long term.

Q: Are steel pipes suitable for industrial applications?: Yes, steel pipes are highly suitable for industrial applications. Steel pipes offer several advantages that make them the preferred choice for various industries. Firstly, steel pipes have excellent strength and durability, making them capable of withstanding high pressure and heavy loads. This makes them ideal for applications involving transportation of liquids, gases, and solids. Additionally, steel pipes have a high resistance to corrosion, which is crucial in industrial environments where exposure to harsh chemicals, moisture, and extreme temperatures is common. The corrosion-resistant properties of steel pipes ensure a longer lifespan and reduce the need for frequent maintenance and replacements. Moreover, steel pipes have a smooth interior surface, which minimizes friction and allows for efficient flow of materials. This is especially important for industries such as oil and gas, where the smooth flow of fluids is essential for proper operations. Furthermore, steel pipes are available in a wide range of sizes and thicknesses, allowing for customization and flexibility in design. They can be easily welded and connected, enabling easy installation and modification as per the specific requirements of industrial applications. Overall, steel pipes offer a combination of strength, durability, corrosion resistance, and versatility, making them highly suitable and widely used in various industrial applications such as oil and gas, construction, water treatment, power generation, and chemical processing.

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