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

SPIRAL WELDED STEEL PIPE 12'' 16‘’ CARBON STEEL

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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 purpose of a steel pipe coating?
The objective of applying a coating to a steel pipe is to safeguard it against corrosion and other environmental elements that may cause deterioration. By coating the pipe with a layer of material, a barrier is created between the steel and its surroundings, thereby averting direct contact and reducing the risk of corrosion. This is particularly crucial for pipes utilized in industries such as oil and gas, water distribution, and construction, where they encounter harsh conditions like moisture, chemicals, and extreme temperatures. Moreover, the coating improves the pipe's durability and longevity, guaranteeing its ability to withstand the demands of its intended use. In certain cases, specific types of pipe coatings can also possess insulation properties, which are valuable in applications where precise temperature control is essential to prevent heat loss or transfer. All in all, the primary purpose of a steel pipe coating is to safeguard the pipe, prolong its lifespan, and ensure optimal performance across various industries and environments.
Q: Can steel pipes be galvanized?
Indeed, it is possible to galvanize steel pipes. Galvanization involves the application of a safeguarding zinc layer to steel or iron in order to hinder corrosion. The steel pipes are immersed in a solution of molten zinc, resulting in a chemical union between the zinc and steel that produces a protective coating resistant to corrosion. Galvanization finds widespread use across multiple fields, including plumbing, construction, and outdoor structures, primarily to prolong the durability of steel pipes and inhibit rust formation.
Q: What are the different methods of coating steel pipes?
There are several methods of coating steel pipes, including fusion bonded epoxy (FBE) coating, liquid epoxy coating, polyethylene (PE) coating, and polyurethane (PU) coating. Each method offers unique advantages and is chosen based on factors such as the desired level of corrosion protection, application environment, and project requirements.
Q: How are steel pipes used in the manufacturing of offshore wind turbines?
Steel pipes are used in the manufacturing of offshore wind turbines for various purposes. They are commonly used to create the foundation structures, such as monopiles and jacket structures, which provide stability and support for the turbines in the seabed. Steel pipes are also utilized for the construction of the tower and nacelle structures, providing a strong and durable framework for the turbine components. Additionally, steel pipes are employed for the installation of subsea cables, allowing for the transmission of electricity generated by the turbines to the shore. Overall, steel pipes play a crucial role in the manufacturing of offshore wind turbines by providing the necessary strength, stability, and infrastructure required for their operation.
Q: What are the different coating options for steel pipes?
Steel pipes have numerous coating options to choose from, each serving a specific purpose and offering unique advantages. Some common coating options for steel pipes include: 1. Fusion Bonded Epoxy (FBE) Coating: FBE coating is widely used across industries due to its exceptional corrosion resistance, impact resistance, and adhesion to the pipe surface. This coating is typically applied through a heat-induced chemical reaction, resulting in a durable and protective layer. 2. Polyethylene (PE) Coating: PE coating is commonly employed for underground steel pipes as it provides superior resistance against corrosion, abrasion, and chemicals. It is applied using extrusion techniques, forming a seamless layer that prevents moisture penetration. 3. Polyurethane (PU) Coating: PU coating is renowned for its outstanding resistance to abrasion, chemicals, and harsh environmental conditions. It is frequently used for steel pipes exposed to extreme temperatures or aggressive environments. Multiple layers of PU coating can be applied to enhance protection. 4. Coal Tar Enamel (CTE) Coating: CTE coating is a traditional choice for steel pipes requiring protection against corrosion. It is a thick, black coating that effectively resists water, soil, and atmospheric corrosion. This coating is typically applied using a hot-applied method. 5. Zinc Coating: Zinc coating, also known as galvanization, is a widely used protective coating for steel pipes. It involves applying a layer of zinc to create a barrier against corrosion. Zinc coating can be applied through hot-dip galvanization or electro-galvanization techniques. 6. Concrete Coating: Concrete coating is often utilized for steel pipes in underground or submerged applications. It provides a robust protective layer against corrosion, abrasion, and mechanical damage. Concrete coating is typically applied as a cement mortar or reinforced concrete layer. These options represent just a few of the available coatings for steel pipes. The selection of a coating depends on factors such as the intended application, environmental conditions, and desired durability. Choosing the appropriate coating is crucial to ensure the longevity and performance of steel pipes in various industries.
Q: What's the difference between steel pipe and pipe fittings?
Steel: steel pipe is a hollow steel strip, used as pipe conveying fluid, such as oil, gas, water, gas, steam, in addition, the bending and torsional strength of the same, the weight is light, so it is widely used in the manufacture of machinery parts and engineering structures. It is also used to produce all kinds of conventional weapons, guns, shells and so on.
Q: What are the different methods of pipe support for steel pipes?
There are several methods of pipe support for steel pipes, including clamps, hangers, brackets, and guides. Clamps are used to secure pipes to a structure, while hangers suspend the pipes from overhead supports. Brackets provide lateral support and stability, and guides are used to control pipe movement and prevent excessive sagging. These various methods ensure the proper installation and stability of steel pipes in different applications.
Q: Can steel pipes be used for high-pressure applications?
Yes, steel pipes can be used for high-pressure applications. Steel is known for its strength and resilience, making it a suitable material for handling high-pressure fluids or gases. Additionally, steel pipes can withstand extreme temperatures and are resistant to corrosion, further enhancing their suitability for high-pressure applications.
Q: What are the different types of steel pipe coatings?
There are several different types of steel pipe coatings, including epoxy coatings, polyethylene coatings, zinc coatings, and galvanized coatings. These coatings are applied to steel pipes to protect them from corrosion and extend their lifespan.
Q: How are steel pipes repaired if they develop leaks?
Steel pipes can be repaired if they develop leaks through various methods such as welding, clamping, or using epoxy compounds. The specific repair technique depends on the size and location of the leak as well as the type of pipe, and it is typically carried out by trained professionals with the necessary equipment and expertise.

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