• 20# Seamless steel pipe ASTM A106/API 5L/ASTM A106 System 1
  • 20# Seamless steel pipe ASTM A106/API 5L/ASTM A106 System 2
20# Seamless steel pipe ASTM A106/API 5L/ASTM A106

20# Seamless steel pipe ASTM A106/API 5L/ASTM A106

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Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
25 m.t.
Supply Capability:
9000 m.t./month

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1、Structure of 20# Seamless steel pipe ASTM A106/API 5L/ASTM A106: 

Seamless pipe is formed by drawing a solid billet over a piercing rod to create the hollow shell. As the manufacturing process does not include any welding, seamless pipes are perceived to be stronger and more reliable. Historically seamless pipe was regarded as withstanding pressure better than other types, and was often more easily available than welded pipe.

 

2、‍‍Main Features of the 20# Seamless steel pipe ASTM A106/API 5L/ASTM A106:

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price 

 

3、20# Seamless steel pipe ASTM A106/API 5L/ASTM A106 Specification:

Standard

GB, DIN, ASTM

ASTM A106-2006, ASTM A53-2007

Grade

10#-45#, 16Mn

10#, 20#, 45#, 16Mn

Thickness

8 - 33 mm

Section Shape

Round

Outer Diameter

133 - 219 mm

Place of Origin

Shandong, China (Mainland)

Secondary Or Not

Non-secondary

Application

Hydraulic Pipe

Technique

Cold Drawn

Certification

API

‍Surface Treatment

factory state or painted black

‍Special Pipe

API Pipe

Alloy Or Not

Non-alloy

Length

5-12M

Outer Diameter

21.3-610mm

Grade 

20#, 45#, Q345, API J55, API K55, API L80, API N80, API P110, A53B

Standard

ASME, ASTM

 

1) Material:20#(ASTM A 106/A53 GRB.API5LGRB,GB),45#,16Mn,10#.

2) Specification range:OD:21.3-610mm,WT:6-70mm,length:6-12m or according to the requirement of clients.

3) Excutive standards:GB,ASME API5L.ASTM A 106/A53,Despite of the above standards,we can also supply seamless steel pipe with standard of DIN,JIS,and so on,and also develop new products according to the requirements of our clients!
4) Surface:black lacquered,varnish coating or galvanized.
5) Ends:Beveled or square cut,plastic capped,painted.
6) Packing:bundles wrapped with strong steel strip,seaworthy packing. 

 

4、Packaging & Delivery

Packaging Details:

seaworthy package,bundles wrapped with strong steel strip

Delivery Detail:

15-30days after received 30%TT

 

5、FAQ of 20# Seamless steel pipe ASTM A106/API 5L/ASTM A106:  

①How is the quality of your products?
    Our products are manufactured strictly according to national and internaional standard, and we take a test 
on every pipe before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.
Guaranteed: If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.

②Why should you chose us?
    Chose happens because of quality, then price, We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent customer solution proposals.Our service formula: good quality+good price+good service=customer’s trust
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.

 

6、20# Seamless steel pipe ASTM A106/API 5L/ASTM A106 Images: ‍‍

 

Q: What is the purpose of a steel pipe coating?
The purpose of a steel pipe coating is to provide protection to the pipe from corrosion and other environmental factors that can lead to deterioration. Coating the pipe with a layer of material helps to create a barrier between the steel and the surrounding environment, preventing direct contact and reducing the risk of corrosion. This is especially important for pipes that are used in industries such as oil and gas, water distribution, and construction, where they are exposed to harsh conditions such as moisture, chemicals, and extreme temperatures. The coating also helps to enhance the durability and longevity of the pipe, ensuring that it can withstand the demands of its intended application. Additionally, certain types of pipe coatings can also provide insulation properties, preventing heat loss or transfer in applications where temperature control is critical. Overall, the purpose of a steel pipe coating is to protect the pipe, extend its lifespan, and ensure its optimal performance in various industries and environments.
Q: Who knows what is the difference between double submerged arc welded pipe and longitudinal submerged arc welding?
Double submerged arc welding should be for spot welding and single side welding, they are straight line welds, but double submerged arc welding seam is more beautiful and fine.
Q: How are steel pipes coated to prevent corrosion?
Steel pipes are coated to prevent corrosion using various methods and materials. One common method is applying a protective layer of paint or epoxy on the surface of the pipe. This coating acts as a barrier between the steel and the external environment, preventing moisture and corrosive substances from coming into direct contact with the metal. Another technique involves using a process called galvanization, where the steel pipes are coated with a layer of zinc. Zinc is highly resistant to corrosion and acts as a sacrificial anode, meaning it will corrode in place of the steel if any damage occurs to the coating. This sacrificial protection ensures that the steel remains intact and corrosion-free. Additionally, steel pipes can be coated with polyethylene or polypropylene materials through a process called fusion bonding. In this method, the plastic material is melted onto the steel surface, creating a strong bond that provides excellent resistance against corrosion. This type of coating is commonly used in offshore and underground pipelines. Furthermore, another technique for preventing corrosion is the application of a layer of corrosion-resistant alloy onto the steel pipe. This alloy is typically a combination of metals such as nickel, chromium, and molybdenum, which provide superior protection against corrosion in harsh environments. Overall, the choice of coating method depends on various factors such as the operating conditions, the type of corrosive substances present, and the expected lifespan of the steel pipes. By effectively applying these coatings, steel pipes can be safeguarded against corrosion, extending their durability and ensuring the integrity of the infrastructure they are used in.
Q: How are steel pipes used in power plants?
Steel pipes are used in power plants for various purposes such as carrying steam, water, and other fluids, as well as transporting fuel and exhaust gases. They are also utilized in the construction of boilers, heat exchangers, and condensers, ensuring efficient and reliable operation of power generation equipment.
Q: What is the composition of steel pipes?
Steel pipes are primarily composed of iron and carbon, with trace amounts of other elements such as manganese, phosphorus, sulfur, and silicon.
Q: Can steel pipes be used for natural gas processing plants?
Yes, steel pipes can be used for natural gas processing plants. Steel pipes are commonly used in the oil and gas industry due to their high strength, durability, and resistance to corrosion. They can safely transport natural gas and are capable of withstanding the high pressure and temperature conditions typically found in processing plants.
Q: What is the weight of hot galvanized steel tubes? DN150 4mm wall thickness
GB/T3091-2008: DN150 welded steel pipe, wall thickness of 6mm, the theory of the weight of welded steel pipe 24.02kg/m, galvanized steel pipe should be multiplied by the weight coefficient after galvanizing, C, DN150, wall thickness of 6mm, C=1.02, DN150, theoretical weight and wall thickness of 6mm galvanized steel 1.02*24.02= 24.5kg/m.
Q: What are the common methods for inspecting the condition of steel pipes?
There are several common methods for inspecting the condition of steel pipes. These methods aim to identify any defects or potential issues that could affect the integrity of the pipes. 1. Visual Inspection: This involves a thorough visual examination of the pipes to identify any visible signs of damage such as corrosion, cracks, or leaks. Inspectors may use tools such as flashlights, mirrors, or borescopes to access hard-to-reach areas. 2. Ultrasonic Testing: This method uses high-frequency sound waves to detect defects within the steel pipes. A transducer is used to emit sound waves, and any disruptions or reflections in the waves can indicate potential issues such as cracks or thinning of the pipe walls. 3. Magnetic Particle Testing: This technique is primarily used to detect surface cracks or defects in steel pipes. A magnetic field is applied to the pipe, and fine iron particles are then applied to the surface. The particles will gather at any areas where there are surface defects, making them easily visible. 4. Eddy Current Testing: This non-destructive testing method is used to detect surface and near-surface defects in steel pipes. It involves passing an alternating current through a coil, which induces eddy currents in the pipe. Any disruptions or changes in the eddy currents can indicate defects such as corrosion or cracks. 5. Radiographic Testing: This method uses X-rays or gamma rays to inspect the internal structure of steel pipes. X-ray film or a digital detector is placed on one side of the pipe, while the X-ray source is placed on the other side. The rays penetrate the steel, and any irregularities or defects can be identified on the film or through digital imaging. 6. Dye Penetrant Inspection: This technique is used to detect surface-breaking defects in steel pipes. A dye penetrant is applied to the surface of the pipe, and after a specified period, a developer is used to draw out the dye from any defects. The dye will make the defects easily visible. These methods, either individually or in combination, provide a comprehensive inspection of steel pipes, ensuring their reliability and safety in various industries such as oil and gas, construction, and manufacturing.
Q: Can steel pipes be used for high-pressure applications?
Yes, steel pipes can be used for high-pressure applications. Steel is known for its strength and durability, making it suitable for handling high-pressure fluids or gases in industries such as oil and gas, chemical processing, and power generation. The use of steel pipes ensures reliable performance and reduces the risk of leaks or ruptures even under high pressure conditions.
Q: How are steel pipes used in the construction of sewer systems?
Steel pipes are commonly used in the construction of sewer systems due to their durability and strength. These pipes are used to transport wastewater and sewage from buildings to treatment plants or disposal sites. They are ideal for underground installation as they can withstand high pressure, resist corrosion, and are less prone to damage from external forces. Additionally, steel pipes can be easily welded or joined together, allowing for efficient installation and maintenance of sewer systems.

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