• 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:
get latest price
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: Who knows what is the difference between double submerged arc welded pipe and longitudinal submerged arc welding?
The straight seam welding is relative to the spiral welding and the T-shaped welding, and so on.
Q: How does the price of steel pipes vary based on size and grade?
The price of steel pipes can vary based on their size and grade. Generally, larger pipes tend to have higher prices due to the increased amount of raw materials required for their production. Additionally, pipes with higher-grade steel, which offers better strength and durability, often come at a higher cost compared to lower-grade options. The size and grade of steel pipes are important factors to consider when determining their price in the market.
Q: How are steel pipes tested for quality control?
Steel pipes are tested for quality control through various methods such as visual inspection, non-destructive testing, and physical testing. Visual inspection involves checking the pipes for any visible defects or inconsistencies in their appearance. Non-destructive testing methods like ultrasonic testing, magnetic particle testing, and radiographic testing are used to detect internal flaws or defects without damaging the pipes. Additionally, physical tests like tensile and impact testing are performed to evaluate the mechanical properties of the pipes. These comprehensive testing techniques ensure that steel pipes meet the required quality standards before they are used in various applications.
Q: What is the purpose of pipe flanges in steel pipes?
The purpose of pipe flanges in steel pipes is to provide a secure and leak-proof connection between two pipes or to other equipment, such as valves or pumps. Flanges allow for easy assembly and disassembly of pipe sections, as well as providing a means for maintenance and repairs. Additionally, they provide a stronger connection, ensuring the integrity and stability of the pipeline system.
Q: What are the common problems or issues faced with steel pipes?
Some common problems or issues faced with steel pipes include corrosion, leaks, blockages, and wear and tear. Corrosion can occur due to exposure to moisture or chemicals, leading to rust and weakening of the pipe. Leaks can arise from faulty connections or cracks in the pipe, resulting in water or gas leakage. Blockages can occur due to the accumulation of debris or mineral deposits, hindering the flow of fluids. Over time, steel pipes can also experience wear and tear, leading to erosion or cracks, which may require repair or replacement.
Q: What are the different methods of bending steel pipes?
There are several methods of bending steel pipes, including hot bending, cold bending, mandrel bending, rotary draw bending, and induction bending.
Q: How do steel pipes handle expansion and contraction?
Steel pipes handle expansion and contraction through their inherent flexibility and ability to withstand temperature variations. As steel is a ductile material, it can expand and contract without significant deformation or structural damage. Additionally, the use of expansion joints or loops in piping systems allows for controlled movement and accommodates thermal expansion and contraction effectively.
Q: How are steel pipes used in the water treatment industry?
Steel pipes are commonly used in the water treatment industry for various purposes such as transporting water from one location to another, distributing treated water to consumers, and carrying wastewater to treatment facilities. Their durability, strength, and resistance to corrosion make them suitable for withstanding the harsh conditions often encountered in water treatment processes. Additionally, steel pipes can be easily welded and connected, providing a reliable and efficient solution for water transportation within the industry.
Q: How are steel pipes stored and transported?
To ensure the safety and prevent damage of steel pipes, a systematic and efficient approach is employed for their storage and transportation. In terms of storage, designated areas are used to either horizontally or vertically stack the pipes. In the case of vertical stacking, custom-made racks or stands are utilized to provide support and prevent rolling or collapsing. This method not only saves space but also allows for easy accessibility when required. To safeguard steel pipes against corrosion and environmental elements, a layer of paint or other protective materials is often applied. Furthermore, pipes may be stored indoors in warehouses or storage facilities to shield them from unfavorable weather conditions. In terms of transportation, depending on the distance and destination, steel pipes are typically loaded onto trucks, railcars, or ships. Specialized equipment such as cranes or forklifts is employed to handle and load the pipes onto these vehicles. To prevent movement during transit, the pipes are tightly secured using straps, chains, or braces. This ensures stability and eliminates the risk of damage to the pipes themselves or other cargo. For long-distance transportation, steel pipes are often transported in bundles or stacks, reinforced to provide additional security. They may also be packed in protective coverings or containers to shield them from moisture, dust, or impacts. Overall, the storage and transportation of steel pipes necessitate meticulous planning, proper handling, and appropriate protective measures to uphold their integrity and quality throughout the entire process.
Q: Where is a steel pipe casing usually used?
The casing, usually used in the basement construction, to protect the pipeline or convenient pipeline installation hoops.

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