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: Can steel pipes be used for gas distribution?: Yes, steel pipes can be used for gas distribution. Steel pipes are commonly used in gas distribution systems due to their durability, strength, and resistance to corrosion. They can handle high-pressure gas transmission and are suitable for both underground and aboveground installations. However, certain safety regulations and standards must be followed to ensure the proper installation and maintenance of steel pipes for gas distribution.

Q: How are steel pipes coated for protection against external elements?: Steel pipes are coated for protection against external elements through a process called pipeline coating. This involves applying a layer of protective material, such as epoxy or polyethylene, onto the surface of the steel pipes. The coating acts as a barrier, preventing corrosion and damage from external factors like moisture, chemicals, and UV radiation. This protective coating ensures the longevity and durability of the steel pipes, even in harsh environments.

Q: Can steel pipes be used for hydropower systems?: Yes, steel pipes can be used for hydropower systems. Steel is a durable and strong material that can withstand high pressure and corrosion, making it suitable for carrying water or other fluids in hydropower systems. Additionally, steel pipes can be customized to different sizes and shapes, allowing for efficient water flow and distribution within the system.

Q: Can steel pipes be used for oil well casing?: Yes, steel pipes can be used for oil well casing. They are commonly used in the oil and gas industry due to their durability, strength, and ability to withstand high pressure and extreme conditions found in oil wells.

Q: How are steel pipes used in the construction of irrigation systems?: Steel pipes are commonly used in the construction of irrigation systems due to their durability and strength. They are used to transport water from the source to the fields or crops efficiently. Steel pipes can withstand high pressure and are resistant to corrosion, making them ideal for long-term use in irrigation systems. Additionally, their smooth interior surface allows for a smooth flow of water, ensuring efficient water distribution and minimizing the risk of clogs or blockages.

Q: What are the different types of steel pipe fittings for gas pipelines?: There are several types of steel pipe fittings commonly used for gas pipelines, including elbows, tees, reducers, flanges, and couplings. Elbows are used to change the direction of the pipeline, while tees are used to create branch connections. Reducers are used to connect pipes of different sizes, and flanges are used for connecting pipes with valves or other equipment. Couplings are used to join two pipes together.

Q: What are the common standards for manufacturing steel pipes?: The common standards for manufacturing steel pipes include specifications set by international organizations such as the American Society for Testing and Materials (ASTM), the International Organization for Standardization (ISO), and the European Committee for Standardization (EN). These standards cover aspects such as material composition, dimensions, mechanical properties, and testing methods to ensure quality and compatibility in steel pipe production.

Q: What are the common challenges faced during steel pipe installation?: When installing steel pipes, there are various challenges that may arise. One of these challenges involves the need to ensure that the pipe sections are properly aligned and fit together correctly. Welding or threading is typically used to join steel pipes, and if the alignment is not precise, it can result in leaks or weak points in the pipeline. To overcome this challenge, it is necessary to use careful measurements and alignment techniques to ensure a secure and tight fit between the pipe sections. Another challenge that arises is dealing with corrosion and rust. Steel pipes are prone to corrosion, especially when exposed to moisture or corrosive substances. This can lead to the deterioration of the pipes over time, compromising their structural integrity and increasing the risk of leaks. To address this challenge, it is possible to apply protective coatings or linings 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 it can be physically demanding to maneuver and position them. 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 correctly. 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 longevity of the pipeline. In conclusion, the challenges commonly faced during steel pipe installation include the need for proper alignment, the issue of corrosion and rust, the handling of the weight and size of the pipes, and the consideration of environmental factors. Overcoming these challenges requires careful planning, attention to detail, and the utilization of appropriate techniques and equipment.

Q: What is the difference between steel pipe and polyethylene pipe?: Steel pipe and polyethylene pipe are utilized for plumbing and construction purposes, but they differ in terms of their materials and characteristics. Steel pipe derives its strength and durability from a combination of iron and carbon. It is commonly employed in industrial settings or for underground gas and oil pipelines where high pressure and heavy loads are expected. Steel pipe is renowned for its corrosion resistance and ability to withstand extreme temperatures. In contrast, polyethylene pipe is a plastic pipe crafted from either high-density polyethylene (HDPE) or low-density polyethylene (LDPE). It is lightweight, flexible, and easy to install, making it a popular choice for residential plumbing and irrigation systems. Polyethylene pipe can resist chemicals, UV rays, and abrasive materials, making it suitable for both above-ground and underground installations. Another notable distinction between steel pipe and polyethylene pipe is their respective costs. Steel pipe is generally more expensive due to the raw materials and manufacturing processes involved. Conversely, polyethylene pipe is relatively affordable and cost-effective, especially for smaller-scale projects. Regarding maintenance, steel pipe necessitates periodic inspections and maintenance to prevent corrosion and ensure durability. Conversely, polyethylene pipe is virtually maintenance-free due to its resistance to corrosion and chemical degradation. To summarize, the primary differences between steel pipe and polyethylene pipe lie in their composition, strength, durability, cost, and maintenance requirements. The choice between these pipes depends on the project's specific needs, considering factors such as pressure, load, budget, and environmental conditions.

Q: What are the different types of steel pipe coatings for corrosive environments?: There are several types of steel pipe coatings specifically designed for corrosive environments. Some common options include fusion-bonded epoxy (FBE) coatings, liquid epoxy coatings, polyethylene (PE) coatings, and polyurethane (PU) coatings. These coatings provide a protective layer to prevent corrosion and extend the lifespan of the steel pipes in various corrosive conditions.

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