• Seamless steel pipe ASTM A106/API 5L/ASTM A53 high quality System 1
  • Seamless steel pipe ASTM A106/API 5L/ASTM A53 high quality System 2
Seamless steel pipe ASTM A106/API 5L/ASTM A53 high quality

Seamless steel pipe ASTM A106/API 5L/ASTM A53 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

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: How can the immersed pipe pile put steel cage into the steel pipe? Which expert to answer?
The pile reinforcement cage construction characteristics: in general application of the reinforcement cage can be used when not required manual assembling reinforcement cage, such as deep or large pile diameter should be used for solid and solid mechanism of reinforcement cage better (by reinforcing cage seam welder production) to meet Zhuang Jishi high technology requirements, enhance the stability of pile foundation.
Q: How are steel pipes protected against rusting?
Steel pipes are protected against rusting through a process called corrosion protection. There are several methods employed to prevent rust formation on steel pipes, including: 1. Coatings: One common method is applying various coatings to the surface of the steel pipes. These coatings act as a barrier, preventing oxygen and moisture from reaching the metal surface and initiating the rusting process. Coating options include epoxy, polyethylene, zinc, or even a combination of these materials. 2. Galvanization: Galvanizing steel pipes involves immersing them in a bath of molten zinc. This process creates a protective layer of zinc on the surface of the pipes which acts as a sacrificial barrier. If any small areas of the pipe surface are exposed, the zinc coating will corrode instead of the steel, providing ongoing protection against rust. 3. Cathodic Protection: This method utilizes an electrical current to protect the steel pipes. By connecting the pipes to a sacrificial anode, usually made of zinc or magnesium, the anode will corrode instead of the steel pipes when exposed to moisture and oxygen. This process is commonly used in underground or underwater applications. 4. VCI (Vapor Corrosion Inhibitor) Technology: VCI technology involves the use of chemical compounds that release a vapor that protects the steel pipes from rusting. These compounds form a thin layer on the surface of the pipes, inhibiting the corrosion process by neutralizing oxygen and moisture. 5. Regular Maintenance: In addition to the above methods, regular inspection and maintenance are crucial to prevent rust formation on steel pipes. This includes cleaning the pipes, removing any accumulated debris or corrosive substances, and repairing any damaged coatings or protective layers. Overall, these methods of corrosion protection effectively safeguard steel pipes from rusting, ensuring their longevity and durability in various industrial, commercial, and residential applications.
Q: How are steel pipes used in the construction of gas distribution networks?
Steel pipes are commonly used in the construction of gas distribution networks due to their durability, strength, and resistance to corrosion. These pipes are installed underground to transport natural gas from the source to various distribution points. They are used to create a reliable and efficient network that delivers gas safely to homes, businesses, and industries.
Q: What are steel pipes used for?
Steel pipes are commonly used for transporting fluids and gases, as well as for structural applications such as construction, oil and gas exploration, and plumbing systems.
Q: What is the maximum allowable stress for steel pipes?
The maximum allowable stress for steel pipes depends on various factors such as the grade of steel, diameter, wall thickness, and the intended application. It is typically determined by industry standards and codes, such as the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code. Therefore, there is no one-size-fits-all answer to this question.
Q: How can two smooth steel pipes be joined? The size of the two pipe is different (except for welding)
Butt fastener: used for connecting two steel pipe jointsThin-walled stainless steel pipe, the national standard consists of three parts, respectively on the thin stainless steel pipe connection, the sealing ring of raw materials of various specifications of O type thin wall stainless steel pipe diameter and wall thickness of pipe and rubber have clear requirements, in order to ensure the quality of the whole pipeline, pipeline safety and guarantee system durability. The connection mode is clamp type and ring type.
Q: What are the factors to consider when selecting pipe materials for high-temperature applications?
When selecting pipe materials for high-temperature applications, there are several factors that need to be taken into consideration. Firstly, the material's thermal conductivity is crucial. High-temperature applications require materials with high thermal conductivity to ensure efficient heat transfer and prevent heat buildup. Materials such as copper and stainless steel have excellent thermal conductivity and are commonly used in high-temperature pipe installations. Secondly, the material's resistance to thermal expansion is important. When exposed to high temperatures, pipes tend to expand. Therefore, it is crucial to choose materials with low thermal expansion coefficients to prevent deformation and potential pipe failure. Materials like carbon steel and stainless steel exhibit relatively low thermal expansion and are suitable for high-temperature applications. Thirdly, the material's mechanical strength and resistance to corrosion need to be considered. High temperatures can cause certain materials to weaken or corrode, leading to structural failures. It is essential to select materials that can withstand high temperatures without compromising their mechanical strength or corroding easily. Materials like alloy steel and nickel-based alloys are known for their high strength and resistance to corrosion, making them suitable for high-temperature applications. Furthermore, the material's cost and availability should be taken into account. Some high-temperature pipe materials may be expensive or difficult to obtain, which can impact the overall project budget and timeline. It is essential to balance the desired material properties with the project's financial and logistical constraints. Lastly, the specific application requirements and industry standards should be considered. Different industries may have specific guidelines or regulations regarding pipe materials for high-temperature applications. It is crucial to ensure that the selected materials comply with these standards to ensure safety, reliability, and compliance with industry regulations. In conclusion, the factors to consider when selecting pipe materials for high-temperature applications include thermal conductivity, resistance to thermal expansion, mechanical strength, resistance to corrosion, cost and availability, and compliance with industry standards. By carefully evaluating these factors, one can choose the most suitable pipe material to ensure efficient and reliable operation in high-temperature environments.
Q: Can steel pipes be used for underground drainage in acidic soils?
Steel pipes can be used for underground drainage in acidic soils, but it is important to consider certain factors. Acidic soils can cause corrosion in steel pipes, leading to weakening and potential failure over time. To mitigate this risk, it is advisable to use galvanized steel pipes that are treated with a protective coating to resist corrosion. Additionally, regular inspection and maintenance should be carried out to identify and address any signs of corrosion or deterioration. It is also worth considering alternative materials such as PVC or HDPE pipes, which are more resistant to corrosion in acidic environments. Ultimately, the choice of material should be based on a thorough assessment of the soil conditions, the expected lifespan of the drainage system, and the budgetary constraints.
Q: Are steel pipes resistant to fire?
Yes, steel pipes are highly resistant to fire.
Q: Can steel pipes be used for drainage systems?
Yes, steel pipes can be used for drainage systems. Steel pipes are durable, resistant to corrosion, and have high strength, making them suitable for carrying and managing the flow of water in drainage systems.

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