• Seamless pipe ASTM A53/ASTM A 106/API 5L grade B System 1
  • Seamless pipe ASTM A53/ASTM A 106/API 5L grade B System 2
Seamless pipe ASTM A53/ASTM A 106/API 5L grade B

Seamless pipe ASTM A53/ASTM A 106/API 5L grade B

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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 are steel pipes classified based on their schedule?
Steel pipes are classified based on their schedule, which refers to the thickness of the pipe wall. The schedule classification is denoted by a number, such as 10, 20, 40, 80, etc., with higher numbers indicating thicker walls.
Q: Can steel pipes be galvanized?
Yes, steel pipes can be galvanized.
Q: What's the actual size of the DN25?
Different materials of steel pipe, nominal diameter of the same, then its outer diameter is the same, diameter = outside diameter -2 times, wall thickness.
Q: What are the common factors affecting the flow capacity of steel pipes?
The flow capacity of steel pipes can be affected by several common factors. Firstly, the diameter of the pipe plays a crucial role. A larger diameter allows for a greater flow capacity because there is more area for the fluid to pass through. Secondly, the length of the pipe also affects flow capacity. Longer pipes tend to have higher frictional losses, which can decrease the flow capacity. Thirdly, the internal surface roughness of the steel pipe can impact flow capacity. Rough surfaces create more friction, resulting in a lower flow rate. Conversely, smooth pipes allow for smoother flow and higher flow capacity. The properties of the fluid being transported through the steel pipe are another important consideration. Factors such as viscosity, temperature, and density can all influence the flow rate. For example, highly viscous fluids have a lower flow capacity compared to less viscous fluids. Additionally, pressure drop along the length of the pipe is a significant factor. Friction, bends, and restrictions can all cause pressure losses, resulting in a lower flow capacity. The material of the steel pipe and its wall thickness also play a role. Different materials have varying properties that can impact flow rates. Moreover, thicker walls can reduce the internal diameter of the pipe, leading to a lower flow capacity. Lastly, the design and layout of the pipe system, including the presence of fittings, can impact flow capacity. Fittings such as valves, elbows, and tees can cause additional pressure drops and turbulence, reducing the overall flow rate. Considering these factors is essential when designing or evaluating a steel pipe system to ensure optimal flow capacity and efficiency.
Q: Seamless steel tube with the tube with what is the difference?
At present there are some seamed steel pipe seamless treatment tube, it is the weld annealing treatment, eliminate the residual stress of the weld, the weld and base material, the pressure range of basic and seamless pipe is. May also consider the use of.
Q: Are steel pipes suitable for transporting fluids?
Yes, steel pipes are suitable for transporting fluids. They have high tensile strength, durability, and resistance to corrosion, making them an ideal choice for transporting various fluids, including water, oil, gas, and chemicals, over long distances. Steel pipes are commonly used in industries such as oil and gas, water treatment, and manufacturing due to their ability to withstand high pressure and temperature conditions.
Q: Can steel pipes be used for conveying corrosive substances?
When conveying corrosive substances, it is crucial to select the appropriate type of steel and take additional protective measures. For instance, stainless steel pipes offer excellent resistance to corrosion and can handle a wide range of corrosive substances. However, one must carefully consider the specific corrosive properties and concentration levels of the substance being conveyed. In certain cases, applying additional protective coatings or linings may be necessary to prevent corrosion and guarantee the pipes' durability. Regular maintenance and inspection play a vital role in identifying and addressing any signs of corrosion to avoid leaks or failures in the piping system. In conclusion, while steel pipes are suitable for conveying corrosive substances, proper material selection, protective measures, and maintenance are essential for safe and efficient operations.
Q: What are the applications of galvanized steel pipes?
Galvanized steel pipes have numerous applications in various industries. They are commonly used for plumbing and water supply systems due to their corrosion resistance. Additionally, they are used in gas transmission, oil refineries, and industrial plants where resistance to harsh chemicals and high temperatures is crucial. Galvanized steel pipes are also employed in construction for structural support and scaffolding, as well as for fencing and handrails. Overall, their durability, strength, and cost-effectiveness make galvanized steel pipes suitable for a wide range of applications.
Q: How are steel pipes used in structural applications?
Steel pipes are commonly used in structural applications due to their strength, durability, and versatility. They can be used as load-bearing members in buildings, bridges, and other structures to provide support and stability. Additionally, steel pipes can be easily fabricated and joined together, allowing for various configurations and designs. Their resistance to corrosion and ability to withstand high temperatures also make them suitable for applications in harsh environments. Overall, steel pipes play a crucial role in enhancing the structural integrity and longevity of various construction projects.
Q: Can steel pipes be used for power plant construction?
Yes, steel pipes can be used for power plant construction. Steel pipes are commonly employed in power plants for various applications such as the transportation of fluids, steam, and gases, as well as for structural support. They offer high strength, durability, and resistance to extreme temperatures and pressures, making them suitable for the demanding conditions found in power plants.

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