• SPIRAL WELDED STEEL PIPE 32‘’ 48‘’CARBON System 1
SPIRAL WELDED STEEL PIPE 32‘’ 48‘’CARBON

SPIRAL WELDED STEEL PIPE 32‘’ 48‘’CARBON

Ref Price:
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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: How are steel pipes used in the manufacturing of automobiles?
Steel pipes are commonly used in the manufacturing of automobiles due to their strength, durability, and versatility. They are used in various applications throughout the automobile manufacturing process. One of the main uses of steel pipes in automobiles is for the construction of the vehicle's chassis and body. Steel pipes are often used as structural components to provide strength and rigidity to the vehicle. They can be bent, shaped, and welded to form the desired structure, making them an ideal choice for automotive applications. Steel pipes are also used in the exhaust system of automobiles. The exhaust system is responsible for guiding and directing the exhaust gases away from the engine. Steel pipes are used to create the exhaust manifold, which collects the gases from the engine's cylinders, as well as the exhaust pipes and mufflers. The high temperature resistance and corrosion resistance of steel make it suitable for withstanding the harsh conditions of the exhaust system. In addition, steel pipes are used in the cooling system of automobiles. They are used to transport coolant from the engine to the radiator and back, helping to regulate the engine's temperature. Steel pipes are preferred for this application due to their ability to handle high pressure and temperature, as well as their resistance to corrosion and chemical damage. Moreover, steel pipes are used in the fuel system of automobiles. They are used to transport fuel from the tank to the engine, ensuring a steady and reliable supply of fuel. Steel pipes are chosen for this application because they are resistant to corrosion and can handle the high pressure and temperature associated with fuel transportation. In summary, steel pipes are essential in the manufacturing of automobiles. They are used in the construction of the chassis and body, the exhaust system, the cooling system, and the fuel system. Their strength, durability, and versatility make them a preferred choice for automotive applications.
Q: How are steel pipes used in wastewater treatment?
Steel pipes are commonly used in wastewater treatment to transport and distribute the wastewater throughout the treatment facility. They are used for various purposes such as carrying raw sewage, transporting treated water, and distributing chemicals for the treatment process. Steel pipes are preferred due to their strength, durability, and resistance to corrosion, making them suitable for handling the harsh and corrosive nature of wastewater.
Q: What is the standard length of steel pipes?
The standard length of steel pipes varies depending on the industry and application, but common lengths range from 10 to 40 feet.
Q: What's the material of Q325 steel pipe?
Q235 refers to the material yield stress of 235MPa carbon steel, because of its low price, good machining and welding performance, it is generally used for welding structural parts. Of course, the unimportant parts can be used for it.
Q: What are the different threading options for steel pipes?
The different threading options for steel pipes include tapered threads (NPT/NPTF), straight threads (UN/UNF), and buttress threads.
Q: Can steel pipes be used for sewage and wastewater systems?
Yes, steel pipes can be used for sewage and wastewater systems. Steel pipes are highly durable, resistant to corrosion, and can withstand high pressure and temperature conditions, making them suitable for transporting sewage and wastewater efficiently and securely. Additionally, steel pipes have a long lifespan and can handle the abrasive nature of sewage and wastewater, making them a reliable choice for such systems.
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 do you calculate the pipe flow rate for steel pipes?
To calculate the pipe flow rate for steel pipes, you will need to consider various factors. Firstly, determine the inside diameter of the pipe, typically denoted as D. Next, measure the length of the pipe, denoted as L. Additionally, you will need to know the pressure drop, ΔP, across the pipe and the fluid density, ρ. Once you have this information, you can use the Darcy-Weisbach equation or the Hazen-Williams equation to calculate the flow rate. The Darcy-Weisbach equation is commonly used for pipes with turbulent flow, while the Hazen-Williams equation is often used for pipes with laminar flow. For the Darcy-Weisbach equation, the formula is: Q = (π/4) * D^2 * √(2ΔP/ρ) Where Q is the flow rate in cubic meters per second, D is the inside diameter of the pipe in meters, ΔP is the pressure drop across the pipe in pascals, and ρ is the fluid density in kilograms per cubic meter. For the Hazen-Williams equation, the formula is: Q = C * (D^2.63) * (ΔP^0.54) * (L^0.63) Where Q is the flow rate in cubic meters per second, D is the inside diameter of the pipe in meters, ΔP is the pressure drop across the pipe in pascals, L is the length of the pipe in meters, and C is the Hazen-Williams coefficient which depends on the roughness of the pipe. To accurately calculate the pipe flow rate, it is important to ensure that the units of measurement are consistent throughout the calculation. Additionally, it is crucial to have accurate measurements of the inside diameter, length, pressure drop, and fluid density to obtain reliable results.
Q: What are steel pipes made of?
Steel pipes are primarily made of steel, which is an alloy composed of iron and carbon.
Q: How are steel pipes protected against soil movement or settlement?
Steel pipes can be protected against soil movement or settlement through various methods. One common method is to use protective coatings on the pipes. These coatings act as a barrier between the steel and the soil, preventing direct contact and reducing the risk of corrosion. Some commonly used coatings include epoxy, polyethylene, and zinc. Another method is to use cathodic protection. This involves the installation of sacrificial anodes along the pipeline. These anodes corrode instead of the steel pipes, protecting them from damage caused by soil movement or settlement. Furthermore, proper design and installation techniques can also help protect steel pipes against soil movement or settlement. For instance, engineers may consider factors such as soil composition, slope stability, and potential for ground movement when designing the pipeline route. Additionally, proper trenching and bedding techniques can help ensure that the pipe is adequately supported and protected against settlement. Regular inspection and maintenance are also crucial for protecting steel pipes against soil movement or settlement. Monitoring the condition of the pipeline, including the protective coatings and cathodic protection systems, can help identify any potential issues and allow for timely repairs or replacements. Overall, a combination of protective coatings, cathodic protection, proper design and installation techniques, and regular maintenance can effectively protect steel pipes against soil movement or settlement.

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