The seamless steel pipe is made by perforating the whole round steel, and the steel pipe without weld seam on the surface. It is mainly used as high-precision structural steel pipes for petrochemical industry, boiler pipes, automobiles and aviation.
Seamless tubing can be made from any of several alloys and metals, such as carbon steel, stainless steel, molybdenum, or tungsten. Seamless pipes are used in those industrial applications that require the highest safety requirements. To produce seamless steel pipes, the solid block is pierced with a piercing plug before the pipe is drawn to the desired size.
Some of the differences between seamless and welded pipes are:
Seamless pipes are extruded and drawn from billets, while welded pipes are produced from roll formed and welded strips.
Due to the higher range of security offered by seamless pipe, it is more expensive than welded pipe.
Seamless pipes are available in relatively short lengths, while welded pipes can be manufactured in longer continuous lengths.
Seamless pipe generally does not show any signs of corrosion until and unless it is subjected to a highly corrosive environment, whereas in welded pipe the welded area is more susceptible to corrosion attack.
The welded area is considered to be inhomogeneous, so it exhibits different ductility and lower corrosion resistance, as well as larger dimensional changes. Seamless pipes eliminate any such problems and thus offer high corrosion resistance.
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Jiangsu takes the lead in implementing the monitoring and control of hazardous chemicals transportation network
A few days ago, the mobile hazard source monitoring platform of the Jiangsu Safe Production Emergency Rescue Command Center, along with the monitoring stations of 13 provincial municipal monitoring stations, was officially completed and launched. The establishment and operation of this platform mark a significant step forward in Jiangsu's efforts to implement a provincial intranet system for monitoring and managing the transportation of hazardous chemical wafers. This initiative positions Jiangsu as a leader in the field of real-time hazardous material transport supervision.
Jiangsu is home to nearly 4,000 hazardous chemical manufacturing companies, over 20,000 hazardous chemical business units, and more than 12,000 specialized vehicles for storage and transportation. Additionally, the number of hazardous chemical vehicles operating within the province—whether local or passing through from other provinces—exceeds 20,000 daily. Any traffic accident involving these vehicles can lead to severe chemical leaks, causing catastrophic damage. To address this risk, Jiangsu has pioneered a mobile hazard monitoring and control network that provides 24/7 real-time tracking of mobile hazards on both roads and waterways. This system not only regulates drivers' behavior but also ensures safer transportation routes and timely data uploads from various sources, significantly reducing the likelihood of accidents.
It is reported that the mobile hazard monitoring platform will soon be extended to all 60 counties and districts across the province. Furthermore, the integrated GPS platforms used by local governments and relevant departments will be incorporated into the system, enabling a unified provincial information-sharing framework. This integration will allow for seamless compatibility, efficient supervision, and centralized management of hazardous chemical transport monitoring services.
According to another report, once the system is fully operational, any vehicle from other provinces entering Jiangsu will be required to install portable terminal devices. The monitoring system will track these vehicles within the province for 24 hours, transforming the previous chaotic and unregulated management of incoming hazardous vehicles into an orderly and controlled process. This move is expected to enhance safety, improve regulatory oversight, and strengthen the overall transportation management system for dangerous goods in Jiangsu.