• SPIRAL WELDED STEEL PIPE 12‘’ 16‘’ 18‘’ 20’‘ CARBON System 1
SPIRAL WELDED STEEL PIPE 12‘’ 16‘’ 18‘’ 20’‘ CARBON

SPIRAL WELDED STEEL PIPE 12‘’ 16‘’ 18‘’ 20’‘ 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:What is the abrasion resistance of steel pipes?
Steel pipes have a relatively high resistance to abrasion. They possess exceptional strength and durability, rendering them resilient against the detrimental effects of friction and impact. This quality positions steel pipes as a prime option for various industries and applications that frequently encounter abrasion, such as mining, oil and gas, and the transportation of abrasive substances. Furthermore, steel pipes can be fortified with coatings or linings to enhance their resistance against abrasion, tailored to meet the unique demands of each application. In conclusion, steel pipes present a dependable and enduring solution for effectively managing abrasive materials and environments.
Q:What does carbon seamless steel pipe mean? What is the difference between a seamless 20# and an ordinary one? What is it used in detail?
Carbon steel is relatively alloy steel. Its carbon content is higher than alloy steel, and 20# steel is one kind of carbon steel.
Q:Can steel pipes be used for transporting drinking water?
Indeed, steel pipes have the capacity to transport drinking water. These pipes are extensively employed in water distribution networks and have a long history of usage. Renowned for their robustness, potency, and ability to resist corrosion, steel pipes are highly favored. Nonetheless, it is imperative to ensure that steel pipes designated for drinking water transportation are adequately coated or lined in order to avert any potential contamination originating from the metal. Moreover, it is crucial to conduct routine inspections and maintenance to safeguard the pipes' integrity and to forestall any leaks or ruptures that could jeopardize the water's quality.
Q:How do steel pipes perform in corrosive environments?
Steel pipes perform well in corrosive environments due to their high resistance to corrosion. They are commonly used in industries such as oil and gas, chemical processing, and wastewater treatment where exposure to corrosive substances is prevalent. The protective oxide layer on the surface of steel pipes prevents the material from getting corroded, ensuring long-term durability and reliability. Additionally, steel pipes can be further protected by coatings or linings to enhance their resistance to corrosion in highly aggressive environments.
Q:How do you calculate the bending moment of a steel pipe?
To calculate the bending moment of a steel pipe, you need to consider both the applied load and the structural properties of the pipe. The bending moment is a measure of the internal forces within the pipe caused by the applied load. The bending moment can be calculated using the following equation: Bending Moment = Load x Distance Here, the load represents the external force acting on the pipe, and the distance is the distance from the point where the load is applied to the point where the bending moment is being calculated. In order to accurately calculate the bending moment, you must also consider the properties of the steel pipe. This includes the pipe's cross-sectional area, second moment of area (also known as the moment of inertia), and the modulus of elasticity. The second moment of area reflects the pipe's resistance to bending and can be calculated based on the dimensions of the pipe's cross-section. The modulus of elasticity represents the pipe's stiffness and can be obtained from material properties data. Once you have determined the load, distance, cross-sectional area, moment of inertia, and modulus of elasticity, you can plug these values into the bending moment equation to calculate the bending moment for the steel pipe. It is important to note that the calculation of bending moment assumes linear elastic behavior, which means that the pipe does not exceed its elastic limit and does not undergo plastic deformation. If the pipe is subjected to loads that exceed its capacity, the calculation of bending moment may not accurately represent the actual behavior of the pipe. In such cases, it is advisable to consult with a structural engineer or use more sophisticated analysis methods to accurately assess the bending moment.
Q:What is the role of steel pipes in the food processing industry?
Steel pipes play a crucial role in the food processing industry as they are used for various applications such as conveying fluids, gases, and other materials throughout the production process. These pipes are resistant to corrosion, have high strength, and can withstand extreme temperatures, making them ideal for transporting food products safely and hygienically. They are widely used for transporting water, steam, and other liquids, as well as for transferring ingredients, such as grains, oils, and sauces. Additionally, steel pipes are utilized in the construction of food processing equipment, such as mixers, blenders, and storage tanks, ensuring the durability and integrity of the entire production system.
Q:Are steel pipes resistant to corrosion?
Yes, steel pipes are resistant to corrosion due to the protective layer formed by the oxide film on their surface. However, their resistance can vary depending on the specific type of steel and the conditions they are exposed to.
Q:How do you transport steel pipes safely?
In order to transport steel pipes safely, it is essential to engage in proper planning, utilize appropriate equipment, and adhere to safety measures. To ensure the safe transportation of steel pipes, the following guidelines should be followed: 1. Select suitable transportation equipment: Opt for either a flatbed trailer or a truck with a flatbed when transporting steel pipes. Make certain that the trailer or truck is equipped with a robust and secure tie-down system to prevent any movement or shifting of the pipes during transit. 2. Secure the pipes: Use either nylon or steel straps to fasten the steel pipes to the trailer or truck bed. Ensure that the straps are adequately tightened so as to evenly distribute the weight of the pipes and prevent any potential movement or shifting. 3. Safeguard the pipes: Implement the use of pipe chocks or protective materials such as foam or rubber to prevent the steel pipes from rolling or rubbing against each other during transportation. This will aid in minimizing any possible damage and maintaining the integrity of the pipes. 4. Adhere to weight restrictions: Verify that the weight of the steel pipes being transported does not exceed the load capacity of the transportation equipment. Overloading can lead to instability and compromise safety. 5. Comply with road safety regulations: Abide by all local traffic laws and regulations, including adhering to speed limits and securing any necessary permits or licenses for oversized loads if required. Additionally, utilize hazard warning signs or flags when transporting lengthy or oversized steel pipes to alert other road users. 6. Perform regular inspections: Prior to embarking on the journey, inspect the straps, tie-downs, and other securing mechanisms to ensure they are in satisfactory condition. Regularly monitor the load during transit to guarantee its continuous security. 7. Plan the route: Select a route that is suitable for the size and weight of the steel pipes being transported. Avoid roads with low bridges, narrow lanes, or weight restrictions that may pose a hazard to the safe transportation of the pipes. 8. Consider weather conditions: Take into account weather conditions, such as strong winds or heavy rain, which can impact the stability of the load. Make necessary adjustments to the transport plan or postpone the journey if deemed necessary. 9. Train and educate drivers: Ensure that the drivers responsible for transporting steel pipes are adequately trained and knowledgeable about the proper procedures for securely and safely transporting the load. Regularly provide them with updates on safety protocols and any changes in regulations. By adhering to these guidelines, the transportation of steel pipes can be executed safely, thereby reducing the risk of accidents, damage to the pipes, and ensuring the safety of all individuals involved in the transportation process.
Q:How do steel pipes perform in marine environments?
Steel pipes perform well in marine environments due to their high corrosion resistance. They are typically coated with protective layers such as zinc or epoxy, which further enhance their ability to withstand the harsh conditions of saltwater, waves, and constant exposure to moisture. These pipes are capable of withstanding the corrosive effects of seawater, making them reliable for various applications like offshore oil rigs, shipbuilding, and coastal infrastructure.
Q:How are steel pipes connected in pipeline construction?
Steel pipes are connected in pipeline construction through various methods, such as welding, threading, and flanges. Welding involves melting the ends of two pipes together to form a strong and permanent bond. Threading involves cutting grooves into the ends of pipes, which are then screwed together using threaded fittings. Flanges are used to connect pipes by bolting them together, creating a secure and leak-proof connection. These connection methods ensure the integrity and durability of the pipeline system.

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