Welcome to select the 820 double-sided buried arc spiral steel pipe produced by Langyao Steel, compliant with Q235A 1020 national standard. This article will introduce various aspects, including the production process characteristics, stacking principles, stability performance, weld treatment requirements, and national standards, hoping to provide you with some useful information.

Firstly, let's examine the production process characteristics of spiral steel pipes. Spiral steel pipes are produced using double-sided submerged arc welding, which ensures the quality of the welds, enhancing the welding strength of the pipes and providing excellent pressure resistance. Additionally, the application of bottom-blowing argon arc welding technology effectively reduces the occurrence of welding pores and slag inclusions, further improving the quality of spiral steel pipes.

Next, the stacking principles for spiral steel pipes. To ensure stable stacking of spiral steel pipes, we recommend using a level ground as the storage area, avoiding soft foundations to prevent deformation of the pipes. Additionally, for pipes stored for extended periods, sunshade measures should be taken to prevent direct sunlight from causing color variations or embrittlement on the pipe surface.

Stable performance is also a major advantage of spiral steel pipes. Made using hot rolling or cold drawing processes, spiral steel pipes boast excellent dimensional stability and surface quality. They are made from materials such as Q235A, Q235B, 10#, 20#, and offer high compressive strength and corrosion resistance, making them suitable for various engineering projects with high strength requirements.

In weld treatment, we pay great attention to detail. The spiral steel pipes are inspected using advanced non-destructive testing technology to ensure there are no cracks or slag, etc. Additionally, we employ special anti-corrosion measures to ensure the pipes are not corroded during transportation and use. This can effectively extend the service life of the pipes and reduce maintenance and replacement costs.

Our products comply with national standards and can meet the requirements of various construction and pipeline projects. Our spiral steel pipes are widely used in water supply projects, petrochemical industries, urban construction, and more. Our company is located in Foshan, Guangdong, and we can deliver products directly to the factory, offering you convenient delivery services.

In summary, the 820 double-sided submerged arc welded spiral steel pipe produced by Langyao Steel, which meets the GB Q235A1020 standard, boasts excellent quality and stable performance, playing a significant role in engineering construction. Should you be interested in our products, please feel free to contact us at any time, and we will be dedicated to providing you with products and services.