• SPIRAL CARBON STEEL PIPE ASTM A53 System 1
SPIRAL CARBON STEEL PIPE ASTM A53

SPIRAL CARBON STEEL PIPE ASTM A53

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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:What are the different methods of pipe coating for steel pipes?
There are several methods of pipe coating for steel pipes, including fusion-bonded epoxy (FBE) coating, three-layer polyethylene (3LPE) coating, three-layer polypropylene (3LPP) coating, and liquid epoxy coating. Each method offers different levels of protection against corrosion, abrasion, and other environmental factors, ensuring the durability and longevity of the steel pipes.
Q:How do you remove rust from steel pipes?
One effective way to remove rust from steel pipes is to use a wire brush or steel wool to scrub the affected areas. You can also apply a rust dissolver or a mixture of lemon juice and salt on the rusted spots and let it sit for a few hours before scrubbing. Additionally, using a commercial rust remover or a vinegar solution can also help in removing rust from steel pipes.
Q:What is the maximum length of steel pipes available?
The maximum length of steel pipes available can vary depending on the manufacturer and the specific requirements. However, standard lengths for steel pipes typically range from 18 to 24 feet.
Q:How do you calculate the pipe friction loss coefficient for steel pipes?
The pipe friction loss coefficient for steel pipes can be calculated using the Darcy-Weisbach equation, which takes into account the pipe diameter, length, roughness, and fluid velocity. The coefficient can be determined by dividing the friction factor (obtained from Moody's chart or using empirical equations) by the Reynolds number (calculated using the fluid properties and pipe dimensions).
Q:Can steel pipes be used for underground pressure pipelines?
Yes, steel pipes can be used for underground pressure pipelines. Steel pipes are known for their strength and durability, making them suitable for various applications, including underground pressure pipelines. They can withstand high pressure and are resistant to corrosion, making them a reliable choice for transporting fluids or gases underground. Additionally, steel pipes are available in different sizes and thicknesses, allowing for customization based on the specific requirements of the pipeline project. However, it is important to ensure proper coating or lining of the steel pipes to prevent corrosion caused by soil conditions or the transported substance. Regular maintenance and inspections are also necessary to ensure the integrity and longevity of the underground pressure pipelines made of steel pipes.
Q:What is the production process of seamless steel tube?
The main production process for hot rolling seamless steel tube (the main inspection):Tube preparation and check delta to billet heating, heating, rolling, perforated pipe, steel pipe and heat treatment, diameter (minus) Delta to finished tube straightening, finishing and inspection of delta (nondestructive, physicochemical, Taiwan inspection and warehousing)
Q:What are the different methods of cleaning steel pipes?
There are several methods of cleaning steel pipes, including mechanical cleaning, chemical cleaning, and high-pressure water jetting. Mechanical cleaning involves the use of brushes, scrapers, or other abrasive tools to remove dirt and debris from the pipe's surface. Chemical cleaning involves the application of solvents or acids to dissolve tough stains or residues. High-pressure water jetting uses a powerful stream of water to dislodge and remove contaminants from the pipe. These methods can be used individually or in combination depending on the specific cleaning requirements.
Q:Are steel pipes magnetic?
Yes, steel pipes are typically magnetic because they are made primarily of iron, which is a ferromagnetic material.
Q:How are steel pipes used in wastewater treatment?
The wastewater treatment process relies heavily on the use of steel pipes. These pipes are crucial for the transportation and distribution of wastewater from various sources to the treatment facilities. The decision to use steel pipes is primarily based on their durability, strength, and resistance to corrosion. Within wastewater treatment plants, steel pipes are commonly applied for multiple purposes. Firstly, they are utilized for the intake of raw wastewater. These pipes are typically designed with a large diameter to accommodate the high flow rate of incoming wastewater. Due to their ability to withstand the pressure and turbulence caused by the wastewater flow, steel pipes are an ideal choice for this task. Once inside the treatment facility, steel pipes are responsible for the transportation of the wastewater to different treatment processes. They serve as connectors between various units, such as screens, grit chambers, sedimentation tanks, and biological reactors. Steel pipes are preferred for these applications because they can handle the corrosive elements present in wastewater, including chemicals, acids, and gases. Moreover, their durability ensures a long-lasting service life, resulting in reduced maintenance and replacement costs. Steel pipes also play a significant role in the distribution of treated water during the wastewater treatment process. After the wastewater has undergone treatment, it goes through disinfection and other processes to eliminate harmful contaminants. The treated water is then distributed through steel pipes, allowing it to be reused for purposes such as irrigation, industrial processes, or discharged back into water bodies. Furthermore, steel pipes are employed in the construction of wastewater treatment infrastructure. They are used in the installation of underground sewer lines, pumping stations, and manholes. Steel pipes provide the necessary strength and stability to withstand external forces like the weight of the soil. To summarize, steel pipes are crucial components in the wastewater treatment process. They are responsible for the transportation and distribution of wastewater, connecting different treatment units, and distributing treated water. Their durability, resistance to corrosion, and ability to handle high-pressure flows make them an excellent choice for this demanding application.
Q:What is the hardness of steel pipes?
The hardness of steel pipes varies depending on the specific grade and manufacturing process used. However, steel pipes are generally known for their high hardness and durability, as they are often designed to withstand heavy loads, abrasive environments, and high-pressure conditions.

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