• Large Diameter Corrugated Welding Steel Pipe System 1
  • Large Diameter Corrugated Welding Steel Pipe System 2
Large Diameter Corrugated Welding Steel Pipe

Large Diameter Corrugated Welding Steel Pipe

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Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
25 m.t.
Supply Capability:
10000 m.t./month

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1Structure of Seamless Pipe: 

We are company that have many years experience and professional manager team and engineer team and sales team, sure we will provide you high quality of pipe and professioanl service.

Seamless pipe possesses a hollow section and without seam around the strip steel. It is made with solid bar or steel ingot by perforating machine. As the facture process does not include any welding, seamless pipes are considered to be stronger and more durable. Generally speaking, seamless pipe has better pressure resistance and security than other classifications, and was usually more easily available than welded pipe.

 

2‍‍Main Features of the Seamless Pipe:

High working accuracy

High strength

Small inertia resistance

Strong therming dissipine ability

Good appearance

Reasonble price

 

3Seamless Pipe 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) Executive 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. 

 

 

4Packaging & Delivery:

Packaging Details:

seaworthy package, bundles wrapped with strong steel strip

Delivery Detail:

15-30days after received 30%TT

 

5FAQ of Seamless Pipe:  

How is the quality of your products?
     We have many years business experience in this area, and we have professional engineer and manager team and sure we can provide you high quality production and professional service.

How about price?
    Yes, we are factory and be able to give you lowest price below market one, and we have a policy that “ for saving time and absolutely honest business attitude, we quote as lowest as possible for any customer, and discount can be given according to quantity”,if you like bargain and factory price is not low enough as you think, just don’t waste your time.Please trust the quotation we would give you, it is professional one.

Why should you chose us?
    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.

 

6‍‍Seamless Pipe Images ‍‍

 

 

 

Q:What are the different methods of protecting steel pipes from corrosion?
There are several methods of protecting steel pipes from corrosion, including coating the pipes with materials such as epoxy, polyethylene, or zinc; applying cathodic protection by using sacrificial anodes or impressed current; and employing corrosion inhibitors to prevent the formation of rust. Regular maintenance and inspections are also crucial in identifying and addressing any potential corrosion issues.
Q:Can steel pipes be used for transporting liquids?
Yes, steel pipes can be used for transporting liquids. Steel pipes have excellent durability, strength, and corrosion resistance, making them a suitable choice for transporting various liquids, including water, oil, gas, and chemicals.
Q:Are steel pipes resistant to corrosion?
Yes, steel pipes are generally resistant to corrosion due to their composition, which includes a protective layer of zinc or other anti-corrosion coatings. However, factors such as exposure to harsh environments or chemicals can affect the level of corrosion resistance.
Q:What are the different types of supports used for steel pipes in buildings?
Some common types of supports used for steel pipes in buildings include pipe hangers, clamps, brackets, and roller supports. These supports are designed to provide stability, prevent sagging or bending, and distribute the weight of the pipes evenly. The choice of support depends on factors such as pipe size, location, and load requirements.
Q:What is the difference between steel pipe and copper pipe?
The composition and properties of steel pipe and copper pipe are what set them apart. Steel pipe is made from carbon steel, an alloy of iron and carbon, while copper pipe is made from naturally occurring copper. Durability is a key distinction. Steel pipe is renowned for its strength and resilience, making it suitable for high-pressure situations and harsh environments. It is highly resistant to corrosion, ensuring its longevity. On the other hand, copper pipe is prized for its malleability and ease of installation. It is not as durable as steel and can corrode over time, particularly when exposed to certain chemicals or aggressive water conditions. Another difference lies in thermal conductivity. Copper pipe is an exceptional heat conductor, making it perfect for applications requiring efficient heat transfer, such as plumbing systems for hot water supply. Conversely, steel pipe has lower thermal conductivity compared to copper, which may affect its performance in specific applications. Cost is also an important factor. Copper pipe tends to be pricier due to the higher cost of copper as a raw material. Moreover, installing copper pipe necessitates specialized tools and techniques, which can increase overall expenses. Conversely, steel pipe is often more cost-effective and easier to work with, making it a popular choice for various applications. In conclusion, the primary discrepancies between steel pipe and copper pipe encompass their composition, durability, thermal conductivity, and cost. Each type possesses its own advantages and disadvantages, and the selection between them hinges on the specific requirements of the given application.
Q:Can steel pipes be used for underground sewerage systems?
Yes, steel pipes can be used for underground sewerage systems. Steel pipes are strong and durable, making them suitable for carrying sewage underground. They have a high resistance to corrosion and can withstand the pressure and load of the ground above. Steel pipes also have a long lifespan and are resistant to environmental factors such as moisture, chemicals, and temperature fluctuations. Additionally, steel pipes can be easily welded, making installation and repairs more convenient. However, it is important to ensure that the steel pipes are properly coated or lined to prevent corrosion and to comply with local regulations and standards for underground sewerage systems.
Q:Are steel pipes suitable for underground nuclear waste storage?
Underground nuclear waste storage does not lend itself to the use of steel pipes due to their unsuitability. Despite their strength and durability, steel pipes are susceptible to corrosion when in contact with certain forms of nuclear waste. As time passes, the radioactive elements can corrode the steel pipes, potentially leading to leaks and the contamination of the surrounding environment. Furthermore, steel pipes lack the necessary design to endure the extreme temperatures and pressures commonly found in nuclear waste storage facilities. Consequently, alternative materials like corrosion-resistant alloys or concrete are generally employed for underground nuclear waste storage to guarantee the confinement and isolation of hazardous substances.
Q:How do you calculate the pipe volume flow rate for steel pipes?
In order to determine the volume flow rate of steel pipes, one must take into account the diameter of the pipe and the velocity of the fluid. The formula utilized in this calculation is Q = A * V, where Q represents the volume flow rate, A denotes the cross-sectional area of the pipe, and V represents the fluid velocity. To initiate the process, the cross-sectional area of the pipe must be determined. In the case of a circular pipe, the formula A = π * r² can be employed, where A signifies the area and r denotes the radius of the pipe. If the diameter of the pipe is provided, dividing it by 2 will yield the radius. Subsequently, the fluid velocity must be established. This can be accomplished by directly measuring the velocity using a flowmeter or by calculating it based on the properties of the fluid and the pressure drop across the pipe using the Bernoulli equation or other suitable equations. Once the cross-sectional area and fluid velocity have been determined, they can be multiplied together to ascertain the volume flow rate. It is important to maintain consistent units throughout the calculation. For instance, if the area is expressed 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 this calculation assumes the fluid to be incompressible and flowing steadily through the pipe. If there are alterations in the fluid properties or flow conditions, additional considerations may need to be taken into account in order to accurately calculate the volume flow rate.
Q:What are the advantages of using steel pipes in marine applications?
Using steel pipes in marine applications offers several benefits. Firstly, steel pipes possess exceptional durability and a high resistance to corrosion. This is crucial in marine settings where pipes are constantly exposed to saltwater, which can rapidly degrade materials. Steel pipes can withstand these harsh conditions and maintain their structural integrity for extended periods. Another advantage of utilizing steel pipes in marine applications is their strength. Steel is a robust and sturdy material that can endure high pressure and extreme conditions commonly encountered in marine operations. This makes steel pipes ideal for transporting fluids, such as water, oil, and gas, in marine environments. Moreover, steel pipes provide excellent fire resistance. In the event of a fire on a ship or offshore platform, steel pipes act as a reliable fire barrier, preventing the spread of flames and ensuring the safety of personnel and equipment. Furthermore, steel pipes are highly versatile and can be easily fabricated to meet specific requirements. They can be manufactured in various sizes, shapes, and thicknesses, allowing for customization to suit the particular needs of marine applications. Steel pipes can also be easily welded together, creating a seamless and leak-proof system. Lastly, steel pipes prove to be cost-effective in the long run. Although the initial investment may be higher compared to other materials, the durability and longevity of steel pipes make them a cost-efficient choice. With minimal maintenance and a long lifespan, steel pipes reduce the need for frequent replacements, resulting in significant cost savings over time. In conclusion, the advantages of using steel pipes in marine applications include their durability, corrosion resistance, strength, fire resistance, versatility, and cost-effectiveness. These factors make steel pipes a reliable and efficient choice for various marine operations, ensuring the safe and efficient transport of fluids in harsh marine environments.
Q:What are the different methods of wrapping steel pipes for corrosion protection?
There are several different methods of wrapping steel pipes for corrosion protection. These methods can vary depending on the specific application and environmental conditions. Some of the common methods include: 1. Tape Wrapping: This involves wrapping the steel pipes with a corrosion-resistant tape, such as polyethylene or polypropylene tape. The tape acts as a barrier between the pipe surface and the corrosive elements, preventing direct contact and reducing the risk of corrosion. 2. Inner Wrapping: Inner wrapping involves applying a protective coating or lining to the inside surface of the steel pipe. This method is commonly used for pipes that transport fluids or gases, as it provides an additional layer of protection against corrosion from the inside. 3. External Coating: External coating is a widely used method for corrosion protection. It involves applying a protective coating to the outside surface of the steel pipe. The coating can be a variety of materials, such as epoxy, polyethylene, or polyurethane, which provide a barrier against corrosive elements and extend the lifespan of the pipe. 4. Cathodic Protection: Cathodic protection is an electrochemical method used to protect steel pipes from corrosion. It involves connecting the steel pipe to a sacrificial anode, such as zinc or magnesium, which corrodes instead of the pipe. This process helps to prevent the corrosion of the steel pipe by diverting the corrosive current away from the pipe surface. 5. Heat Shrink Sleeve: Heat shrink sleeves are commonly used for corrosion protection in underground or submerged applications. These sleeves are made of a heat-activated material that shrinks when heated, creating a tight seal around the pipe. The sleeve forms an effective barrier against moisture and corrosive elements, preventing direct contact with the steel pipe. 6. Fusion Bonded Epoxy (FBE) Coating: FBE coating is a thermosetting powder coating that is applied to the surface of the steel pipe and then fused to form a protective layer. This coating provides excellent adhesion and corrosion resistance, making it a popular choice for steel pipes in various applications. It is important to note that the selection of the appropriate method for wrapping steel pipes for corrosion protection depends on factors such as the environment, the type of corrosive elements present, the intended application, and other specific requirements. Professional advice and consultation may be necessary to determine the most suitable method for a particular situation.

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