• SPIRAL WELDED STEEL PIPE 12'' 14‘’CARBON System 1
SPIRAL WELDED STEEL PIPE 12'' 14‘’CARBON

SPIRAL WELDED STEEL PIPE 12'' 14‘’CARBON

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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

Packaging & Delivery

Packaging Detail:

Normal exporting packing,in container or bulk vessel or as per clients' request

Delivery Detail:

2 months after confimed contract

Specifications

Large Diameter API 5L X70 PSL2 LSAW Steel Pipe 
Grade: X42, X46, X50, X52, X60, B, C 
OD: 1.5"-28" 
WT: SCH10-SCH160 
Brand:TPCO

Large Diameter API 5L X70 PSL2 LSAW Steel Pipe 

 

Specifications:

 

u Standard: API 5L

u Grade: B, C, X42, X46, X50, X52, X56, X60, X65, X70, X80

u OD: 1.5"-28" 

u WT: SCH10-SCH160 

u Length: 5-12m

u Ends Finish: plain end, bevel end, grooved end

u Surface Treatment: bare, black varnished, oiled finish, red color, anti-corrosion, 3PE, FBE or epoxy coating 

u Technique: hot rolled or cold drawn

u Application: api 5l steel pipe for conveying oil, water, gas

u Invoicing: based on theoretical weight or actual weight

u Payment Terms: L/C at sight, T/T or Western Union

u Trade Terms: FOB, CFR, CIF

u Certification: ABS manufacturing assessment, ABS design assessment, API 5CT, API 5L, DNV manufacturer certificate, ISO9001 quality management system certificate, ISO14001 environment management system certificate, GB/T28001 occupational health and safety management system certificate, A1 class manufacturing license of special equipment certificate, CCS, GL, LR, SGS, TüV, PDE

 

 

Q: What is the role of steel pipes in the construction of stadiums?
Steel pipes play a crucial role in the construction of stadiums as they are used for various purposes such as structural support, drainage systems, and the distribution of utilities like water and electricity. These pipes provide a sturdy and durable framework, allowing for the construction of large and complex structures. They also facilitate efficient and reliable management of essential services, ensuring the smooth operation of stadiums during events.
Q: What are the environmental impacts of steel pipe production?
The environmental impacts of steel pipe production include the extraction and processing of raw materials, such as iron ore and coal, which contribute to deforestation, habitat destruction, and air and water pollution. The manufacturing process also emits greenhouse gases and other pollutants, contributing to climate change and air pollution. Additionally, the disposal of waste materials and the potential for leaks or spills during transportation can harm ecosystems and water sources.
Q: What are the alternatives to steel pipes for various applications?
Some alternatives to steel pipes for various applications include PVC (polyvinyl chloride) pipes, copper pipes, aluminum pipes, and fiberglass pipes. Each alternative has its own advantages and disadvantages, such as cost, durability, and resistance to corrosion, which make them suitable for specific applications.
Q: Can steel pipes be used for underwater applications?
Yes, steel pipes can be used for underwater applications. Steel pipes are known for their durability and corrosion resistance, making them suitable for various underwater purposes such as offshore oil drilling, underwater construction, and marine transportation. Additionally, steel pipes can withstand the high pressure and harsh environmental conditions present underwater, making them a reliable choice for such applications.
Q: What are the different types of threading on steel pipes?
There are several different types of threading commonly used on steel pipes, including tapered, parallel, and buttress threading. Tapered threading is typically used for pipes that require a tight seal, as the threads gradually narrow towards the end of the pipe. Parallel threading, on the other hand, has threads that run parallel to the pipe's axis and is often used for pipes that need to be easily assembled and disassembled. Buttress threading is a combination of tapered and parallel threading, featuring one side with a tapered thread and the other side with a straight thread. This type of threading is often used for pipes that require both a secure connection and easy installation.
Q: What is the meaning of "DN" and "Phi" in the dimensioning of steel pipe diameter and how to apply the mark?
DN refers to the nominal diameter of the pipe, but this is neither the outside diameter nor the inside diameter, and the "Phi" means the outer diameter of the steel pipe. For example, the same nominal diameter of the steel pipe due to its different wall thickness, corresponding to the outer diameter is also different. As can be seen from the chart below:Project control table (commonly used) diameter pressure pipe standard pressure pipe standard pressure pipe standard specification DN- nominal diameter: diameter of large diameter series DN15- 22mm DN20- 27mm DN25- phi, Phi Phi Phi Phi 34mm, DN32- 42mm DN40- 48mm DN50- 60mm DN65-, Phi Phi 76 (73) mm, DN80- 89mm DN100- 114mm DN125- and Phi Phi Phi. 140mm DN150- 168mm DN200- 219mm DN250- phi, Phi Phi Phi Phi 273mm, DN300- 324mm DN350- 360mm DN400- 406mm DN450- 457mm DN500- and Phi Phi Phi Phi, 508mm DN600- 610mm, DN15- 18mm series of small diameter Phi Phi Phi, DN20- 25mm DN25- 32mm DN32- 38mm DN40- 45mm DN50- Phi Phi, Phi Phi Phi 57mm DN65- 73mm, DN80- 89mm DN100- 108mm, DN125- 133mm DN150- 159mm DN200- and Phi Phi Phi Phi, 219mm DN250- 273mm DN300- 325mm DN350- 377mm, Phi phi,
Q: How are steel pipes used in the construction of oil-fired power plants?
Steel pipes are commonly used in the construction of oil-fired power plants for various purposes. They are primarily utilized for the transportation of oil and other fluids within the plant, including fuel oil, lubricants, and cooling water. Steel pipes are also used for the installation of high-pressure steam and water lines, as well as for the construction of exhaust systems, ventilation ducts, and other structural components. Overall, steel pipes play a crucial role in ensuring the efficient and reliable operation of oil-fired power plants.
Q: Are steel pipes suitable for high-temperature applications?
Yes, steel pipes are suitable for high-temperature applications. Steel has excellent thermal conductivity and can withstand high temperatures without losing its structural integrity. Additionally, steel pipes have high tensile strength and can resist thermal expansion and contraction, making them ideal for transporting hot liquids or gases in industrial processes.
Q: How are steel pipes used in the construction of oil and gas pipelines?
Steel pipes are commonly used in the construction of oil and gas pipelines due to their high strength, durability, and resistance to corrosion. These pipes are employed to transport crude oil and natural gas from extraction sites to refineries and distribution centers. They provide a reliable and efficient means of transporting these valuable resources over long distances, ensuring a safe and secure supply of energy. Additionally, steel pipes are capable of withstanding high pressure and extreme temperature conditions, making them suitable for the demanding environment of oil and gas transportation.
Q: What is the typical lifespan of steel pipes?
The typical lifespan of steel pipes can vary depending on various factors such as the quality of the steel used, the environmental conditions, and the maintenance and usage of the pipes. However, on average, steel pipes are known to have a lifespan of around 50 to 100 years. With proper installation, regular inspections, and appropriate maintenance, steel pipes can often exceed this lifespan and provide reliable service for several decades. It is important to note that factors such as corrosion, erosion, and external damage can impact the lifespan of steel pipes, so it is crucial to implement preventive measures and necessary repairs to ensure their longevity.

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