• ERW STEEL PIPE API 5L GR.B System 1
ERW STEEL PIPE API 5L GR.B

ERW STEEL PIPE API 5L GR.B

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1)Outside Diameter: 10.3mm--914.4mm
2)Wall Thickness: 0.5~59.54mm
3)Length: Random 1~12m or fixed 6

4)Material quality: ASTM A106 / A53/A210, API 5L,API 5CT,DIN, EN, GB/T8162 / 8163, etc

5)Packing:Hexangular packing in bundles

6)Export: Europe, North America, the Middle East, Africa, Asia and other countries and regions, well received by consumers!

Product Name:

      ERW  pipe  

Size

OD

1/8 -24(10.3mm-914.4mm)

Wall Thickness

0.5mm-59.54mm  SCH30,SCH40,STD,XS,SCH80,SCH,XXS

Length

1m-12m

Steel material

Q195,Q215,Q235,Q345,STL400,ST37-2,16Mn,X42,X52,X80,E235,   Grade B, SS330,SPHC, S185,SS400,S235JR,ST52,STK500

Standard

BS1387-1985,ASTM A53,ASTM A106,GB/T3091-93-2008,EN10129,JIS.

Usage

Used For irrigation,Structure, Accessorize And Construction

Ends

1) Plain   2) Beveled   3) Threaded with Coupling & cap

Surface Treatment

1) Bared 2) Black Painted (varnish coating)   3) Galvanized 4) With Oiled

Technique

Electronic Resistance Welded (ERW )

Electronic Fusion Welded (EFW)

Double Submerged Arc Welded (DSAW)

Welded Line Type

Longitudinal

Inspection

With Hydraulic Test, Eddy Current , Infrared Test

Package

In Bundle with water-proof package

Delivery

1) Container

2) Bulk carrier

Port of Shipment

Xingang Port,Tianjin, China

Date of Delivery

15 days after contract

Payment

L/C at sight or 30% T/T

Others

Fitting as coupler and flange also can be supplied.



Q:What are the different strategies for pipe laying using steel pipes?
There are several strategies for pipe laying using steel pipes, each suited for different environments and requirements. Here are some of the commonly used strategies: 1. Open Trench: This is the most traditional and widely used method, where a trench is dug along the desired pipeline route. Steel pipes are then laid in the trench, aligned, and welded together. This method allows for easy access, maintenance, and repair of the pipeline. 2. Direct Pipe: This method is used when there are crossings under obstacles such as rivers or highways. It involves drilling a borehole from one side to the other, while simultaneously laying the steel pipe. The pipe is then pulled through the borehole, creating a continuous pipeline. 3. Horizontal Directional Drilling (HDD): HDD is employed when the pipeline needs to be installed under existing infrastructure or environmentally sensitive areas. A pilot hole is drilled horizontally, and the steel pipe is then pulled through the hole using a reaming tool. This technique minimizes disruption to the surface and reduces environmental impact. 4. Sliplining: Sliplining involves inserting a smaller diameter steel pipe into an existing larger pipe. The smaller pipe is pushed or pulled into the larger pipe, providing a new corrosion-resistant lining. This method is commonly used for rehabilitating deteriorated or damaged pipelines. 5. Microtunneling: Microtunneling is similar to HDD, but it involves a microtunnel boring machine (MTBM) that excavates the soil and installs the steel pipe simultaneously. This method is often used for precision pipe laying, especially in urban areas with limited space. 6. Jacking: Jacking, also known as pipe jacking or pipe ramming, is utilized for installing steel pipes in soil conditions that are not suitable for open trenching. This method involves pushing the steel pipe into the ground using hydraulic jacks or pneumatic rams. It is commonly used for crossing under railways, roads, or buildings. 7. Offshore Pipeline Laying: For subsea applications, steel pipes can be laid using a variety of techniques, such as S-lay, J-lay, or reel-lay. These methods involve deploying the pipeline from a vessel, either vertically or at an inclined angle, and welding the steel pipes together as they are lowered to the seabed. Each of these strategies has its own advantages and considerations, depending on factors such as terrain, environmental impact, existing infrastructure, and project requirements. It is important to carefully evaluate these factors and select the most suitable pipe laying strategy to ensure the safe and efficient installation of steel pipes.
Q:How do you determine the pipe schedule for steel pipes?
Several factors, including pressure rating, wall thickness, and outer diameter, are taken into account to determine the pipe schedule for steel pipes. The pipe schedule serves as a standardized system that classifies the thickness of pipe walls, ensuring compatibility and safety in various applications. To ascertain the pipe schedule for steel pipes, one must consider the maximum pressure the pipe will endure, typically measured in pounds per square inch (psi) or bars. The pressure rating indicates the pipe's ability to withstand pressure without experiencing failure or leakage. Higher pressure ratings necessitate thicker pipe walls. Another crucial factor in determining the pipe schedule is the wall thickness, typically expressed in inches or millimeters. The wall thickness directly correlates with the pressure rating, as thicker walls have the capacity to handle higher pressures. The American National Standards Institute (ANSI) has established a set of standardized wall thicknesses for steel pipes known as the "pipe schedule." The outer diameter of the pipe is also taken into consideration when determining the pipe schedule. The specific application and requirements influence the outer diameter variation. Selecting a pipe with the appropriate outer diameter is essential to ensure proper fit and compatibility with fittings, valves, and other components. In conclusion, the pipe schedule for steel pipes is determined by examining the maximum pressure, wall thickness, and outer diameter. By aligning these factors with the suitable pipe schedule, one can guarantee that the steel pipe is appropriate for its intended usage and capable of withstanding the required pressure.
Q:What are the thermal properties of steel pipes?
Steel pipes have excellent thermal conductivity, allowing them to efficiently transfer heat. They also have a high melting point, making them suitable for high-temperature applications. Moreover, steel pipes have a low coefficient of thermal expansion, meaning they can withstand significant temperature changes without warping or deforming.
Q:What are the common applications of steel pipes in the water distribution system?
Steel pipes are commonly used in water distribution systems for various applications such as transporting water from treatment plants to distribution points, carrying water under high pressure, and providing a durable and long-lasting solution for underground water pipelines.
Q:How are steel pipes protected against corrosion in marine environments?
Steel pipes are protected against corrosion in marine environments through various methods such as applying protective coatings, using cathodic protection systems, and employing sacrificial anodes. These measures create a barrier between the pipe surface and the corrosive elements in the marine environment, thereby increasing the lifespan and integrity of the pipes.
Q:How are steel pipes used in the agriculture industry?
Steel pipes are used in the agriculture industry for various purposes such as irrigation systems, drainage systems, and livestock handling equipment. They provide a durable and reliable solution for transporting water, nutrients, and effluents, ensuring efficient and effective operations in farm settings.
Q:How are steel pipes protected against internal scaling?
Steel pipes are protected against internal scaling through various methods such as chemical treatments, use of corrosion inhibitors, and regular maintenance and cleaning procedures. These measures help to prevent the formation of scale, which can reduce the pipe's efficiency and lifespan.
Q:Where is the difference between seamless steel pipe and welded pipe?
Seamless steel tube is formed during rolling. Welded steel pipes need to be welded after coiling, and spiral welding and direct welding are generally used. Seamless performance is better, of course, the price is higher.
Q:What are the common applications of steel pipes?
Steel pipes have a wide range of common applications in various industries including oil and gas transportation, plumbing systems, structural support in construction, irrigation systems, and industrial processes such as water and wastewater treatment.
Q:How are steel pipes coated for underground applications?
Steel pipes are typically coated for underground applications using a process known as external coating or corrosion protection. This involves applying a layer of protective material, such as epoxy or polyethylene, onto the surface of the steel pipe. The coating acts as a barrier, preventing the pipe from coming into contact with moisture, soil, and other corrosive elements that could lead to degradation over time. Additionally, before applying the coating, the steel pipes are often cleaned and prepared through processes like sandblasting or shot blasting to remove any impurities and create a smooth surface for better adhesion of the protective coating.

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