Can LSAW steel pipe be used as piling pipe?

Date:2024-07-17Tags:LSAW steel pipe, SSAW steel pipe, piling pipe, steel pipe piles

Straight seam submerged arc welded pipe (LSAW steel pipe) and spiral submerged arc welded pipe (SSAW steel pipe) are both submerged arc welded (SAW), but straight seam submerged arc welded pipe (LSAW) uses a single steel plate as raw material. Its advantages are: the thickness of the steel plate can reach more than 50mm, and there is no crescent bend; because it is a straight seam, it is convenient to form and easy to track the weld, so it is suitable for two-step production, namely pre-finishing welding; and there is a mechanical expansion process for the entire pipe body, which can basically eliminate residual stress. The above advantages enable straight seam submerged arc welded pipes to be made into large diameter (up to 422mm), thick wall pipes (≥50mm), and high steel grades (X80/X100/X120) steel pipes, which are used in Class II, III, and IV areas, marine engineering, and large structural pipes. Generally speaking, the most demanded piling pipes are marine engineering and large bridge engineering, so LSAW steel pipes meet the requirements of piling pipes. Next, the editor will describe some basic characteristics of LSAW steel pipes and their advantages as piling pipes.


1.What is LSAW steel pipe?

LSAW steel pipe is mainly made of strip steel coil, formed by hot extrusion, and welded by automatic double-sided submerged arc welding. On the basis of LSAW steel pipe, the manufacturing process has also been improved. During the production process, strict process standards need to be installed.

LSAW steel pipe is a kind of steel pipe, which is made by straight seam submerged arc welding process. LSAW steel pipe, also known as straight seam submerged arc welded pipe, is usually composed of steel pipes with two different surface treatments: black and galvanized. Its wall thickness, diameter and length can be customized as needed. Using a single medium and thick plate (stainless steel medium and thick plate) as the processing raw material, the stainless steel plate is first pressed (rolled into a tube in a mold or forming machine, and then double-sided submerged arc welding is used and the diameter is expanded for production.

LSAW steel pipe

2.Advantages of using steel pipe piles as piling pipe

Pile pipes are an important structural material for providing solid foundation support in various construction and structural projects.

One of the main advantages of steel pipe piles is their ability to provide solid support for underground foundations. This is particularly important when the structure needs to bear heavy loads, as it requires a deep and solid foundation. Therefore, having the right structural support, such as steel pipe piles, is essential to ensure the stability and strength of deep foundations.

While there are a variety of structural supports available, steel pile pipes are highly recommended for their versatility and customization capabilities. Steel pile pipes can be customized to specific requirements, making them an ideal choice. Moreover, the cost of using steel pile pipes is relatively low compared to other alternatives.

1.Lower Costs

When purchasing pipe piles, the construction and installation process is relatively simple and less complicated, and there is no need to spend too much extra cost on structural support. In addition, pipe piles can be tested before use to ensure their quality and reliability. Pipe piles are also easy to add after the initial construction phase, making them a convenient option. Overall, pipe piles are considered to be the most cost-effective option and an effective solution for structural support in terms of maintenance and replacement costs.

2.No cracking

Steel pipe piles are not prone to cracking during the piling process and can effectively support heavy objects. They are also very convenient to carry and install, and are safe and reliable during use. If installed properly, the total cost of steel pipe piles is the lowest and they are highly safe. The finished product has a wide range of specifications, and the toughness, plasticity, uniformity and density of the welds are good. It has the advantages of large pipe diameter, thick pipe wall, high pressure resistance, low temperature resistance and strong corrosion resistance.


3.Advantages of LSAW steel pipe as piling pipe:

LSAW steel pipe has a wide range of specifications, and the toughness, plasticity, uniformity and density of the weld are good. The advantages are large pipe diameter, thick pipe wall, high pressure resistance, low temperature resistance and strong corrosion resistance. In the construction of high strength, high toughness and high quality

In marine construction projects, due to the influence of daily seawater erosion, general engineers will choose LSAW as piling pipe.

High strength and high bearing capacity: As a piling pipe, it must be able to withstand huge loads, and the thick wall and large diameter design of LSAW steel pipe just meet this requirement. LSAW steel pipe is very suitable for engineering projects that require high-strength support.

Good corrosion resistance: Because of different environmental requirements, LSAW will carry out anti-corrosion work according to different environments, such as corrosion-resistant galvanizing or coating protection. LSAW steel pipes that have been galvanized or coated are particularly suitable for marine engineering and corrosive soil environments.

Strong adaptability: LSAW steel pipes can meet the customization of different sizes and specifications of customers, or can also be customized according to engineering needs, because flexibility is required in the use of piling pipes. Different regions and different environments require different sizes of LSAW steel pipes. Customized to meet the flexibility requirements of the pile pipe

Reliable weld quality: The welds of LSAW steel pipes are uniform and dense, and are reliable in high-pressure and high-temperature environments. This is especially important for pile pipes that are subject to huge pressure and temperature changes.

Residual stress elimination: Through the mechanical expansion process, LSAW steel pipes basically eliminate the residual stress in the production process, improve their fatigue resistance, and extend their service life.


4.Application Cases of LSAW as Piling Pipe

Marine Engineering: In marine engineering, piling pipes need to withstand huge water pressure and wave impact. The high strength and corrosion resistance of LSAW steel pipes make it an ideal choice for offshore platforms and submarine pipelines.

Large Bridge Engineering: Large bridge projects require deep and solid foundations to support the huge weight of the bridge. The thick wall and large diameter design of LSAW steel pipes ensure its excellent performance in such demanding environments.

High-rise Buildings: The foundations of high-rise buildings need to withstand huge vertical loads and lateral pressures. The high strength and good toughness of LSAW steel pipes make it the preferred material in high-rise building piling projects.


5.Conclusion

In summary, LSAW steel pipes have obvious advantages in piling projects with their unique manufacturing process and superior performance. Its high strength, high load-bearing capacity, good corrosion resistance and reliable weld quality make it an ideal piling pipe material in projects such as marine engineering, large bridge projects and high-rise buildings. Through customized design and strict quality control, LSAW steel pipes can not only meet the engineering needs in various complex environments, but also ensure the stability and safety of the structure. Therefore, it can be said with certainty that LSAW steel pipes can be used as piling pipes and play an important role in modern engineering construction.

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