• SPIRAL WELDED STEEL PIPE 14/16/18 MIDDLE DIMETER CARBON System 1
SPIRAL WELDED STEEL PIPE 14/16/18 MIDDLE DIMETER CARBON

SPIRAL WELDED STEEL PIPE 14/16/18 MIDDLE DIMETER 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:How are steel pipes protected against mechanical damage?
Steel pipes are protected against mechanical damage through various methods such as coating them with corrosion-resistant materials, covering them with protective sleeves or wraps, or installing them in underground or enclosed structures to prevent external impact.
Q:Are steel pipes fire resistant?
Indeed, steel pipes possess fire-resistant properties. Steel, being a non-combustible substance, does not ignite or aid in the propagation of flames. Moreover, steel pipes exhibit a remarkable resistance to high temperatures, allowing them to endure extreme conditions. Consequently, they are ideal for situations demanding fire resistance. Furthermore, steel is a resilient material that maintains its structural integrity and does not deteriorate when subjected to fire. Consequently, steel pipes are frequently selected for fire protection systems, including building sprinkler systems, as well as for industrial purposes when confronted with fire risks.
Q:What are the common methods for inspecting the integrity of steel pipes?
Common methods for inspecting the integrity of steel pipes include visual inspection, ultrasonic testing, magnetic particle testing, radiographic testing, and pressure testing.
Q:How do steel pipes compare to other types of piping materials?
Steel pipes are widely considered to be one of the most durable and strong types of piping materials available. They offer superior strength, resistance to corrosion, and can withstand high pressure and extreme temperatures. Compared to other materials such as PVC or copper, steel pipes have a longer lifespan and are more suitable for heavy-duty applications. Additionally, steel pipes are highly recyclable, making them an environmentally friendly choice.
Q:How are steel pipes stored and transported?
Steel pipes are typically stored and transported in a systematic and efficient manner to ensure their safety and prevent damage. When it comes to storage, steel pipes are usually stacked horizontally or vertically in designated areas. If stacked vertically, they are often placed on custom-made racks or stands that provide support and prevent them from rolling or collapsing. This vertical stacking method saves space and allows for easy accessibility when needed. To protect steel pipes from corrosion and environmental elements, they are often coated with a layer of paint or other protective materials. Additionally, pipes are sometimes stored indoors in warehouses or storage facilities to shield them from adverse weather conditions. When it comes to transportation, steel pipes are typically loaded onto trucks, railcars, or ships depending on the distance and destination. Specialized equipment such as cranes or forklifts is used to handle and load the pipes onto the transportation vehicles. Pipes are secured tightly to prevent movement during transit using straps, chains, or braces. This ensures that the pipes remain stable and do not cause any damage to themselves or other cargo. For long-distance transportation, steel pipes are often transported in bundles or stacks, secured with additional reinforcements. Pipes may also be packed in protective coverings or containers to shield them from external factors such as moisture, dust, or impacts. Overall, the storage and transportation of steel pipes involve careful planning, proper handling, and appropriate protective measures to ensure their integrity and quality are maintained throughout the process.
Q:What are the future trends in steel pipe manufacturing?
Some future trends in steel pipe manufacturing include the adoption of advanced technologies such as automation and robotics, the development of high-performance and sustainable materials, the implementation of efficient and eco-friendly production processes, and the integration of digitalization and data analytics for improved quality control and supply chain management. Additionally, there is a growing focus on the development of specialized pipes for specific industries such as oil and gas, construction, and automotive, as well as an increased emphasis on product customization and tailored solutions to meet the evolving needs of customers.
Q:How are steel pipes used in the petrochemical industry?
Steel pipes are commonly used in the petrochemical industry for various purposes such as transporting and distributing fluids and gases, as well as providing structural support for equipment. They are particularly preferred due to their high strength, durability, and resistance to corrosion, making them suitable for handling harsh and corrosive substances.
Q:What does the diameter of a steel pipe project mean?
Suppose we specify a standard that defines the nominal diameter of the same steel tube as G-1, then this G-1 is the same as DN50.I hope it doesn't make you any more confused, huh?. If you still don't understand, keep in mind that the nominal diameter is neither outside nor inside diameter.
Q:How can galvanized steel tubes be painted on the surface?
Suitable for galvanized base material (antirust primer), epoxy zinc yellow primer (double component), epoxy ester zinc yellow primer.Pretreatment of galvanized sheet when brushing:1, conditional, you can zinc plating phosphating treatment, or first spray a layer of phosphating primer.2, or smooth zinc plating surface sweeping treatment.3, the galvanized workpiece, galvanized pipe surface with solvent (that is, epoxy zinc yellow primer, thinner) wipe, in order to remove the workpiece crude oil protective layer, and increase cleanliness.4, two-component epoxy zinc yellow primer: in strict accordance with the proportion of paint and curing agent paint, and aging 30 minutes later, modulation suitable construction viscosity, you can spray.One component epoxy ester primer: zinc yellow construction viscosity suitable to construction of modulation, the correct construction method.
Q:What is the maximum allowable deflection for steel pipes?
Industry standards and design codes typically determine the maximum allowable deflection for steel pipes. These regulations specify the acceptable limits of deflection to guarantee the pipes' structural integrity and functionality. The maximum allowable deflection can vary, depending on factors like pipe diameter, wall thickness, material properties, and the application type. To determine the specific maximum allowable deflection for a particular steel pipe application, it is crucial to reference relevant standards and codes such as the ASME B31.3 code for process piping or AWWA standards for water transmission and distribution pipes. Adhering to these guidelines ensures the safe and efficient operation of steel pipes in various industries and applications.

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