• Large diameter double sided submerged arc welded pipes System 1
  • Large diameter double sided submerged arc welded pipes System 2
  • Large diameter double sided submerged arc welded pipes System 3
Large diameter double sided submerged arc welded pipes

Large diameter double sided submerged arc welded pipes

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Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
25 m.t.
Supply Capability:
12000 m.t./month

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Product Description:

1Structure of Welded Steel Tube: 

Welded Steel Tube is formed by drawing a solid billet over a piercing rod to create the hollow shell. We are company that have many years experience and professional manager team and engineer team and sales team, sure we will provide you high quality of welded pipe and professioanl service.

 

2‍‍Main Features of the Welded Steel Tube:

• High manufacturing accuracy

• The higher strength

• The small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Satisfy price 

 

3Welded Steel Tube Specification

 

Standard

Grade

MPa

MPa

Yield strength

Tensile Strength

API SPEC 5L

PSL1

B

≥241

≥414

×42

≥290

≥414

×46

≥317

≥434

×52

≥359

≥455

×56

≥386

≥490

×60

≥414

≥517

×65

≥448

≥531

×70

≥483

≥565

PSL2

 

Min

Max

Min

Max

B

241

448

441

758

×42

290

496

414

758

×46

317

524

434

758

×52

359

531

455

758

×56

386

544

490

758

×60

414

565

517

758

×65

448

600

531

758

×70

483

621

565

758

Chemical Composition(%)

 

Standard

Grade

C

Mn

P

S

CEV

Max

Max

Max

Max

Max

PSL1

 

-

B

0.26

1.2

0.030

0.030

×42

0.26

1.3

0.030

0.030

×46,×52,×56X60

0.26

1.4

0.030

0.030

X65

0.26

1.45

0.030

0.030

X70

0.26

1.65

0.030

0.030

PSL2

 

 

0.43

B

0.22

1.20

0.025

0.015

 

1) Material: Grade:API 5L GR.B, X40, X42, X52, X56, X60, X65, X70.ST37/37-2,ST33,ST35.8,ST35.4.GB 9711.1/SY5037/GB3092

2) Specification range: OD: 406.4MM-1422MM (16”-56”)

Thickness: 8MM-50.8MM depends on OD

3) Excutive standards:GB,ASME API5L.ASTM A 106/A53,Despite of the above standards,we can also supply seamless steel pipe with standard of DIN,JIS,and so on,and also develop new products according to the requirements of our clients!
4) Surface:black lacquered,varnish coating or galvanized.
5) Ends:Beveled or square cut,plastic capped,painted.
6) Packing:bundles wrapped with strong steel strip,seaworthy packing. 

 

4Packaging & Delivery

Packaging   Details:

seaworthy   package,bundles wrapped with strong steel strip

Delivery   Detail:

15-30days   after received 30%TT

 

5FAQ of Welded Steel Tube:  

How is the quality of your products?
     We have many years business experience in this area, and we have professional engineer and manager team and sure we can provide you high quality production and professional service.

How about price?
    If you like bargain and factory price is not low enough as you think, just don’t waste your time.Please trust the quotation we would give you, it is professional one.

Why should you chose us?
    We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent customer solution proposals.Our service formula: good quality+good price+good service=customer’s trust.

 

6‍‍ Welded Steel Tube Images

 

 

Q:What are the different types of steel pipe coatings for underground applications?
There are several types of steel pipe coatings used for underground applications, including fusion bonded epoxy (FBE), coal tar enamel (CTE), polyethylene (PE), and polyurethane (PU). These coatings provide corrosion protection and increase the lifespan of the steel pipes in underground environments.
Q:Can steel pipes be bent or shaped to meet specific requirements?
Yes, steel pipes can be bent or shaped to meet specific requirements through various techniques such as hot bending, cold bending, or using specialized machinery like pipe benders.
Q:How do you measure the diameter of a steel pipe?
To measure the diameter of a steel pipe, you can use a few different methods depending on the available tools and accuracy required. Here are a few common ways to measure the diameter: 1. Calipers: The most accurate method is to use a set of calipers. Open the calipers to their maximum width and then gently close them around the pipe until they fit snugly. The measurement shown on the calipers will be the diameter of the pipe. 2. Tape measure or ruler: If you don't have calipers, you can use a tape measure or ruler. Wrap the tape measure or ruler around the circumference of the pipe, making sure it is snug but not too tight. Divide the measurement by pi (3.14) to get the diameter. This method may not be as accurate as calipers, but it can give you a rough estimate. 3. String or flexible tape: Another option is to use a piece of string or flexible tape. Wrap the string or tape around the circumference of the pipe and mark where it overlaps. Measure the length of the marked section using a ruler or tape measure. Divide this measurement by pi (3.14) to determine the diameter. 4. Pipe gauge: A pipe gauge is a specialized tool designed specifically for measuring pipe diameter. It consists of a series of circular holes with corresponding diameter labels. Simply insert the pipe into the hole that best fits, and the label will indicate the diameter. Remember, it is essential to measure the diameter at multiple points along the pipe to account for any irregularities or inconsistencies. For accurate measurements, it is recommended to take multiple readings and calculate an average diameter.
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 durable, strong, and resistant to corrosion, making them suitable for transporting sewage and wastewater. They are commonly used in various industrial and municipal applications due to their ability to withstand high pressure and provide long-lasting performance.
Q:What are the safety considerations when working with steel pipes?
There are several crucial safety considerations to bear in mind when working with steel pipes. To begin with, it is imperative to wear the appropriate personal protective equipment (PPE). This includes safety glasses or goggles to shield the eyes from debris or sparks, gloves to protect the hands from sharp edges or hot surfaces, and steel-toed boots to safeguard the feet from falling objects or heavy equipment. Additionally, it is advisable to wear a hard hat to shield the head from potential falling objects or hazards overhead. Moreover, one must be mindful of the weight and size of the steel pipes. Handling heavy pipes can strain the back and muscles, so it is essential to utilize proper lifting techniques and seek assistance when necessary. The use of lifting equipment, such as cranes or forklifts, can also help prevent injuries associated with heavy lifting. Another safety consideration is the risk of cuts or punctures. Steel pipes may have sharp edges or burrs, so it is important to handle them with care and wear suitable gloves to minimize the risk of injury. It is also recommended to inspect pipes for any defects or sharp edges before working with them. Furthermore, working with steel pipes may involve welding or cutting, which can generate sparks, heat, and fumes. It is vital to work in a well-ventilated area or employ proper ventilation equipment to ensure the elimination of harmful gases or fumes. Fire safety precautions, such as having fire extinguishers nearby and adhering to proper procedures for hot work, should also be taken. Lastly, one must be aware of potential hazards associated with working at heights or in confined spaces. When working on elevated platforms or scaffolding, fall protection measures, like safety harnesses or guardrails, should be in place. In confined spaces, proper ventilation and monitoring for hazardous gases are essential to prevent asphyxiation or exposure to toxic substances. By adhering to these safety considerations and following proper procedures, the risk of accidents or injuries when working with steel pipes can be significantly reduced.
Q:How are steel pipes manufactured?
Steel pipes are typically manufactured through a process called seamless or welded pipe manufacturing. In the seamless process, a solid steel billet is heated and pierced to create a hollow tube, which is then stretched and rolled to the desired size and shape. In the welded process, steel sheets are formed into a pipe shape and welded along the seam. These pipes are then further processed and finished before use in various industries.
Q:Can steel pipes be used for agricultural irrigation?
Yes, steel pipes can be used for agricultural irrigation. They are a durable and long-lasting option that can withstand high pressures and extreme weather conditions. Steel pipes also provide excellent protection against corrosion and damage, making them suitable for various irrigation systems in agriculture.
Q:What are the environmental impacts of using steel pipes?
The environmental impacts of using steel pipes include the extraction and processing of raw materials, such as iron ore and coal, which contribute to deforestation, habitat destruction, and greenhouse gas emissions. The manufacturing process also generates significant amounts of waste, including slag and emissions from steel production. The transportation and installation of steel pipes contribute to carbon emissions, while their corrosion and maintenance may result in the release of toxic substances into the environment. Proper waste management and implementing sustainable practices can help mitigate some of these impacts.
Q:How are steel pipes used in the construction of oil storage tanks?
Steel pipes are commonly used in the construction of oil storage tanks as they provide strength, durability, and corrosion resistance. These pipes are used to connect various components of the tank, such as the walls, roof, and bottom, ensuring a secure and leak-proof structure. Additionally, steel pipes are also used to transport oil within the tank and for the installation of necessary fittings, valves, and other equipment.
Q:How are steel pipes classified based on their end connections?
Steel pipes can be classified based on their end connections into threaded, socket weld, butt weld, and flanged connections.

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