Longitudinal Submerged Arc Welded (LSAW) steel pipe is a type of welded steel pipe used in various applications, including in the oil and gas industry, construction, and infrastructure projects
Steel pipe for piling is a type of structural pipe specifically designed for use in deep foundation applications, such as piling and caissons.
A straight seam steel pipe is a steel pipe with only one longitudinal weld. According to the process, it can be divided into LSAW steel pipes and LSAW steel pipes. Straight seam steel pipes are steel pipes whose welds are parallel to the longitudinal direction of the steel pipe.
Anti-corrosion spiral steel pipes are designed to resist corrosion and maintain their structural integrity when exposed to corrosive environments. They are commonly used in industries such as oil and gas, water supply, and infrastructure projects where protection against corrosion is crucial. Here are some characteristics of anti-corrosion spiral steel pipes
Longitudinal welded pipes are made of steel plates or strips that are bent and then welded. According to the weld form, it is divided into straight seam welded pipe and spiral welded pipe. According to the purpose, it is divided into general welded pipe, galvanized welded pipe, oxygen blown welded pipe, wire casing, metric welded pipe, idler pipe, deep well pump pipe, automobile pipe, transformer pipe, electric welded thin-walled pipe, electric welded special-shaped pipe and spiral welded pipe. Among them, according to different purposes, there are different post-production processes.
The spiral welded pipe unit is used to produce large-diameter steel pipes with a diameter of (89-2450)mm×(0.5-25.4)mm and a length of 6-35m. Its production methods are continuous and discontinuous. The unit adopts spiral forming, and the welding adopts two steps of pre-welding and final welding. Forming and pre-welding (spot welding) takes place on a spiral former, followed by internal and external submerged arc welding on the final welding machine. The equipment layout of the spiral welded pipe is shown in Figure
