• SPIRAL CARBON STEEL PIPE ASTM API System 1
  • SPIRAL CARBON STEEL PIPE ASTM API System 2
  • SPIRAL CARBON STEEL PIPE ASTM API System 3
  • SPIRAL CARBON STEEL PIPE ASTM API System 4
SPIRAL CARBON STEEL PIPE ASTM API

SPIRAL CARBON STEEL PIPE ASTM API

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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

<0.045

<0.030

>195

315-430

32-33

Q215

0.09-0.15

0.25-0.55

<0.05

<0.045

<0.030

>215

335-450

26-31

Q235

0.12-0.20

0.30-0.70

<0.045

<0.045

<0.030

>235

375-500

24-26

Q345

<0.20

1.0-1.6

<0.040

<0.040

<0.55

>345

470-630

21-22

Q:SC15 what does galvanized steel pipe look like?
DN15 galvanized pipe, nominal diameter of 15mm
Q:How are steel pipes handled and transported safely?
Steel pipes are handled and transported safely through a combination of proper lifting and handling techniques, secure packaging, and appropriate transportation equipment. Before transportation, pipes are bundled, strapped, or put into crates to prevent any movement or damage during transit. Special lifting equipment such as cranes or forklifts are used to handle them, ensuring that proper weight distribution and balance are maintained. Additionally, securing the pipes to flatbed trucks or using specialized pipe carriers prevents them from rolling or shifting during transportation. Regular inspections, adherence to safety regulations, and trained personnel play a vital role in ensuring the safe handling and transportation of steel pipes.
Q:Are steel pipes resistant to electromagnetic interference?
Yes, steel pipes are generally resistant to electromagnetic interference due to their conductivity and ability to act as a shield against electromagnetic fields.
Q:Can steel pipes be used for hydronic heating systems?
Yes, steel pipes can be used for hydronic heating systems. Steel pipes are commonly used in hydronic heating systems due to their durability, strength, and ability to withstand high temperatures and pressure. They are also resistant to corrosion, which is important for maintaining the efficiency and longevity of the heating system. However, it is essential to ensure proper insulation and protection against potential expansion and contraction issues that steel pipes may face when exposed to high temperatures.
Q:How are steel pipes manufactured?
Steel pipes are manufactured through a process called pipe manufacturing, which involves several steps. First, raw materials such as steel plates or coils are formed into cylindrical shapes. These shapes are then welded together to create a seamless or welded pipe. After welding, the pipes undergo heat treatment to improve their mechanical properties. Finally, the pipes are cut, inspected, and coated with protective layers before being ready for various applications.
Q:How are steel pipes used in seaport infrastructure?
Steel pipes are commonly used in seaport infrastructure for various purposes such as constructing piers, docks, and wharves. They are also used in the construction of offshore platforms and maritime structures like breakwaters and jetties. Steel pipes provide the necessary strength and durability to withstand the harsh marine environment and are used for the transportation of water, fuel, and other fluids within the port. Additionally, they are employed in the construction of pipelines for the loading and unloading of cargo ships, as well as for dredging and marine construction activities.
Q:What are the different methods of joining steel pipes together?
There are multiple techniques for connecting steel pipes, each with its own pros and cons. 1. Welding, the most commonly used method, involves heating and applying pressure to fuse the pipe ends. This creates a robust joint, but it necessitates skilled labor and specialized equipment. 2. Threaded connections involve threading the ends and using fittings to connect the pipes. This method is relatively simple and quick, but it may not be as strong as welding and can be prone to leakage if not sealed properly. 3. Flanged connections involve using flanges and bolts to connect the pipes. This allows for easy disassembly and reassembly, making it suitable for applications that require frequent maintenance. Flanged connections are also highly resistant to leakage. 4. Compression fittings involve compressing a ring or ferrule onto the pipe to create a tight seal. This method is straightforward and does not require heat or welding, making it ideal for applications where heat or sparks are prohibited. 5. Grooved connections involve cutting grooves into the pipe ends and using mechanical couplings to secure them. This method is fast, reliable, and allows for easy assembly and disassembly. Grooved connections are commonly used in fire protection systems. 6. Brazing, similar to welding, involves heating the pipe ends and adding filler material to join them. This method is often used for smaller diameter pipes and provides a strong joint, but it requires a high-temperature torch and skilled labor. Each method has its own advantages and is suitable for different applications. The choice of joining method depends on factors such as required strength, ease of installation, maintenance requirements, and pipe type.
Q:How to descaling galvanized steel pipe?
Is red rust or white rust, red rust is the base material rust, white rust is Zinc Coating Rust
Q:What are the typical lengths of steel pipes?
The typical lengths of steel pipes vary depending on the industry and application. However, common lengths for steel pipes range from 18 to 40 feet.
Q:What are the factors affecting the lifespan of steel pipes?
There are several factors that can affect the lifespan of steel pipes. These include the quality of the steel used, the thickness of the pipe wall, the presence of corrosive substances or environments, the level of maintenance and care, and the exposure to extreme temperatures or physical stress.

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