• Seamless steel pipe ASTM A106/API 5L/ASTM A53 GR.B 20#  high quality System 1
  • Seamless steel pipe ASTM A106/API 5L/ASTM A53 GR.B 20#  high quality System 2
Seamless steel pipe ASTM A106/API 5L/ASTM A53 GR.B 20#  high quality

Seamless steel pipe ASTM A106/API 5L/ASTM A53 GR.B 20# 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 do you calculate the pipe volume flow rate for steel pipes?
To calculate the volume flow rate of steel pipes, you need to consider the pipe's diameter and fluid velocity. The formula used for this calculation is Q = A * V, where Q represents the volume flow rate, A is the cross-sectional area of the pipe, and V is the fluid velocity. To start, you need to determine the cross-sectional area of the pipe. For a circular pipe, you can use the formula A = π * r², where A is the area and r is the radius of the pipe. If the diameter of the pipe is given, you can simply divide it by 2 to obtain the radius. Next, you need to determine the fluid velocity. This can be done by measuring the velocity directly using a flowmeter or by calculating it based on the fluid's properties and the pressure drop across the pipe using the Bernoulli equation or other appropriate equations. Once you have both the cross-sectional area and fluid velocity, you can multiply them together to find the volume flow rate. Make sure the units are consistent throughout the calculation. For example, if the area is in square meters and the velocity is in meters per second, the resulting volume flow rate will be in cubic meters per second. It is worth noting that the calculation assumes the fluid is incompressible and flows steadily through the pipe. If the fluid properties or flow conditions change, additional considerations may be required to accurately calculate the volume flow rate.
Q: Are steel pipes resistant to UV radiation?
Generally, steel pipes have resistance to UV radiation. UV radiation is known to cause damage to materials over time, resulting in fading, discoloration, and degradation. However, steel pipes usually have protective layers, such as paint or galvanization, that help shield them from UV radiation. These coatings act as a barrier, preventing direct exposure of the steel to UV rays and minimizing potential damage. Furthermore, steel's inherent properties, including strength and durability, make it less susceptible to the effects of UV radiation compared to materials like plastics or rubber. Nevertheless, it is important to note that prolonged exposure to intense UV radiation can still have some impact on steel pipes, such as slight discoloration or surface degradation. To ensure the continued performance and longevity of steel pipes in outdoor or UV-exposed environments, regular maintenance and inspection are recommended.
Q: Can steel pipes be used for food processing facilities?
Yes, steel pipes can be used for food processing facilities. Steel pipes are commonly used in the food industry due to their durability, resistance to corrosion, and ease of cleaning. They are also suitable for various processes such as conveying liquids, gases, and solids, making them a reliable choice for food processing facilities.
Q: What are the uses of welded steel pipes?
The spiral submerged arc welded pipe (SY5036-83) for the delivery of pressurized fluid is made of hot rolled steel strips for tube billets, often spirally formed, welded by double submerged arc welding and used for the transmission of pressurized fluid. The steel pipe has strong pressure bearing ability and good welding performance. After a rigorous scientific examination and test, it can be used safely. The utility model has the advantages of large caliber of the steel pipe, high transmission efficiency, and investment in laying pipelines. Mainly used in the transportation of petroleum and natural gas pipelines.
Q: Are steel pipes suitable for chemical processing plants?
Steel pipes are commonly used in chemical processing plants due to their excellent strength, durability, and resistance to corrosion. Steel pipes, especially those made of stainless steel or alloy steel, can withstand high temperatures, pressure, and the corrosive effects of various chemicals. This makes them suitable for transporting and containing different types of chemicals in a safe and efficient manner. Additionally, steel pipes are easy to install, maintain, and repair, making them a cost-effective choice for chemical processing plants. However, it is important to select the appropriate type of steel and consider factors such as the specific chemicals being processed, the operating conditions, and any potential risks or compatibility issues. Regular inspections and maintenance are also essential to ensure the integrity and performance of steel pipes in chemical processing plants.
Q: How to distinguish seamless pipe and welded pipe?
If it is seamless pipe, the port can be seen inside and outside the pipe there is no welding meat exists, and even if the welding pipe welding processing, the pipe weld is very easy to observe.
Q: What are the different types of steel pipe supports for overhead piping?
Some of the different types of steel pipe supports for overhead piping include clevis hangers, beam clamps, pipe straps, and pipe rollers. Clevis hangers are used to suspend the pipe from a beam or other structural element. Beam clamps attach the pipe to a beam or other support structure. Pipe straps are used to secure the pipe to a wall or other surface. Pipe rollers allow the pipe to move freely while providing support.
Q: How are steel pipes used in HVAC systems?
Steel pipes are commonly used in HVAC systems for various purposes. They are used for transporting fluids such as water, steam, and refrigerant throughout the system. These pipes are durable and resistant to high temperatures and pressures, making them suitable for the demanding conditions of HVAC applications. They are used for distributing and circulating the heated or cooled air, as well as for connecting different components of the system, including boilers, chillers, heat exchangers, and air handlers. Additionally, steel pipes are often used for ventilation and exhaust purposes in HVAC systems.
Q: How are steel pipes used in the construction of power plants?
Steel pipes are commonly used in the construction of power plants for various purposes such as transporting fluids, gases, and steam, as well as for structural support. They are used to create a network of pipelines that carry coolant water, fuel, and other necessary fluids to different areas of the plant. Additionally, steel pipes are used for steam generation, connecting boilers to turbines and condensers, ensuring efficient energy production. The durability, strength, and high-temperature resistance of steel pipes make them an ideal choice for the demanding conditions in power plants.
Q: Are steel pipes suitable for food processing facilities?
Yes, steel pipes are suitable for food processing facilities. Steel is a durable and hygienic material that is resistant to corrosion, making it ideal for transporting food products and maintaining their quality and safety. Additionally, steel pipes are easy to clean and disinfect, further ensuring sanitation standards in food processing facilities.

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