• SPIRAL STEEL PIPE 60‘‘ ASTM API LARGE DIAMETER PIPE System 1
  • SPIRAL STEEL PIPE 60‘‘ ASTM API LARGE DIAMETER PIPE System 2
  • SPIRAL STEEL PIPE 60‘‘ ASTM API LARGE DIAMETER PIPE System 3
SPIRAL STEEL PIPE 60‘‘ ASTM API LARGE DIAMETER PIPE

SPIRAL STEEL PIPE 60‘‘ ASTM API LARGE DIAMETER PIPE

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
5 m.t.
Supply Capability:
3000 m.t./month

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Packaging & Delivery

Packaging Detail:

standard export packing or as customer's requirement

Delivery Detail:

within 10 - 30 days

Specifications

Spiral Welded Steel Pipes and Tubes 
1.Material:Q195-Q235 
2.Length:1-12m 
3.WT:1.0-14mm 
4.O.D.:20-273mm

Spiral Welded Steel Pipes and Tubes

 

 

Product Description:

 

1.Material : Q235,Q345,L245,L290,L360,L415,L450,L485,GrB,X42,46,X52,X56,X60,X65,X70,X80,X100

 

2,Standard:  SY/T5037-2000,GB/T9711-2011,API Spec 5L PSL1/PSL2,ASTM A252\A53,ISO3183,DIN17172,EN10217,JIS G3457,AWWA C200,ASTM A139,ASTM A671,ASTM A672

 

3.Wall thickness:  3.0mm-30mm 

 

4.Outer diameter:  φ168mm-3020mm

 

5,Length:  5m-12m or as your requirement

 

6,Corrosion protection standard: DIN30670,DIN30671, AWWAC210, AWWA C203, SY/T0413-2002,SY/T0414-2002

 

7,Application: Oil, gas, natural gas, water pipe, thermal electricity pipe, steel structure engineering, etc

 

 

 

Q195-q345 Material Steel Pipe's Materials

 

      Elements 
      Material   

Chemical Compsition%

Mechanical Property

C%

Mn%

S%

P%

Si%

Yield Point (Mpa)

Tensile Strength(Mpa)

Elongation 
(%) 

Q195

0.06-0.12

0.25-0.50

<0.050< span="">

<0.045< span="">

<0.030< span="">

>195

315-430

32-33

Q215

0.09-0.15

0.25-0.55

<0.05< span="">

<0.045< span="">

<0.030< span="">

>215

335-450

26-31

Q235

0.12-0.20

0.30-0.70

<0.045< span="">

<0.045< span="">

<0.030< span="">

>235

375-500

24-26

Q345

<0.20< span="">

1.0-1.6

<0.040< span="">

<0.040< span="">

<0.55< span="">

>345

470-630

21-22

 

Q:What are the advantages of using steel pipes in construction?
There are several advantages of using steel pipes in construction. Firstly, steel pipes are highly durable and have a long lifespan, making them ideal for long-term projects. Secondly, steel pipes have a high strength-to-weight ratio, meaning they can support heavy loads without being bulky or cumbersome. Additionally, steel pipes are resistant to corrosion, which ensures their longevity and reduces maintenance costs. Moreover, steel pipes are adaptable and can be easily fabricated and customized to fit specific project requirements. Lastly, steel pipes are eco-friendly as they can be recycled, reducing waste and promoting sustainability in construction.
Q:Can steel pipes be used for conveying solids?
Yes, steel pipes can be used for conveying solids. Steel pipes are commonly used in various industries to transport solid materials such as ores, minerals, grains, and other bulk materials. They are durable, resistant to high pressure and temperature, and have a smooth interior surface that allows for efficient flow of solids.
Q:How are steel pipes used in the power generation industry?
Steel pipes are extensively used in the power generation industry for various purposes, such as transporting steam, water, and other fluids in power plants. They provide a reliable and durable solution for the high-pressure and high-temperature conditions found in power generation systems. Steel pipes are also used for the construction of boilers, condensers, and heat exchangers, ensuring efficient heat transfer and energy production. Additionally, steel pipes are employed in the exhaust system of power plants to safely and efficiently discharge emissions. Overall, steel pipes play a critical role in the power generation industry by facilitating the transportation of fluids and contributing to the reliable and efficient operation of power plants.
Q:How are steel pipes used in the construction of irrigation systems?
Steel pipes are commonly used in the construction of irrigation systems due to their strength and durability. These pipes are used to transport water from a water source, such as a well or reservoir, to the desired areas for irrigation. They are often used in underground or above-ground applications, providing a reliable and efficient means of delivering water to crops or plants. Steel pipes are resistant to corrosion and can withstand high pressure, making them ideal for irrigation systems that require long-term functionality.
Q:How do you solder purple copper plate and steel tube?
The copper plate and the steel tube are brazed by brazing or argon arc welding.
Q:What is the difference between steel pipes and cast iron pipes?
The main difference between steel pipes and cast iron pipes is the material they are made of. Steel pipes are made from an alloy of iron and carbon, making them stronger and more durable. On the other hand, cast iron pipes are made solely from iron, which makes them more brittle and prone to cracks. Additionally, steel pipes have a smoother interior surface, allowing for better water flow and reducing the chance of clogs. Cast iron pipes, on the other hand, have a rougher interior surface and are more susceptible to corrosion. Overall, steel pipes are typically preferred for their strength and longevity, while cast iron pipes may be used in specific applications where their unique properties are advantageous.
Q:What are the different wall thicknesses available for steel pipes?
The different wall thicknesses available for steel pipes vary depending on the specific application and requirements. Common wall thicknesses for steel pipes include standard, extra strong, and double extra strong, with each thickness offering different levels of strength and durability.
Q:How are steel pipes repaired in case of damage or leaks?
Steel pipes can be repaired in case of damage or leaks through various methods. One common approach is to use a process called welding. Welding involves melting a filler material together with the damaged or leaking area of the pipe, creating a strong bond that seals the leak. This method is effective for small to moderate-sized leaks and is widely used in industries such as oil and gas, plumbing, and construction. Another method is to use mechanical couplings. These couplings are designed to join two sections of pipe together, providing a tight and secure connection. They can be used to repair damaged or leaking sections of a steel pipe by cutting out the damaged area and replacing it with a new section, which is then connected using the mechanical coupling. This method is particularly useful for larger leaks or damaged sections that cannot be repaired through welding. In some cases, a temporary fix may be applied using pipe clamps or epoxy compounds. Pipe clamps are used to tightly seal the damaged area, preventing further leakage. Epoxy compounds, on the other hand, are applied directly to the damaged or leaking area, creating a seal that temporarily stops the leak until a more permanent repair can be made. It is important to note that the method of repair will depend on the severity and location of the damage or leak, as well as the specific requirements of the application. In some instances, it may be necessary to replace the entire section of the steel pipe if the damage is extensive or if multiple leaks are present. Consulting with a professional or a specialized pipe repair service is recommended to determine the most appropriate repair method for a specific situation.
Q:What are the different types of steel pipe coatings?
There are several types of steel pipe coatings, including epoxy coatings, polyethylene coatings, polyurethane coatings, and zinc coatings. These coatings help protect the steel pipes from corrosion, increase their lifespan, and improve their performance in various environments.
Q:How are steel pipes used in the construction of telecommunications towers?
Steel pipes are commonly used in the construction of telecommunications towers as they provide a strong and durable framework for supporting the tower structure. These pipes are used to create the main mast or tower structure, providing stability and strength to withstand various weather conditions. Additionally, steel pipes are often used for mounting antennas and other equipment on the tower, ensuring secure installation and efficient signal transmission.

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