Cangzhou Botop International Co., Ltd

Our Products have Received a lot of Good Reviews. We are  ERW Steel Pipe Supplier  and our products are exported abroad. Thank you customers for their trust in us. Our products have received a lot of good comments, and I believe that they will get better and better in the future. As one of the three subsidiaries of Hebei Allland Steel Pipe Group, has a strong presence in the piping industry experienced in overseas market. Cangzhou Botop is the international export company of Hebei Allland Steel pipe Group and meantime a stockist of seamless steel pipe. It is one of the biggest stockists of carbon seamless steel pipe in the north of China. As the agency of Baotou steel and Jianlong Steel, it owns more than 8000 tons seamless linepipe in stock each month, so we can ship the goods in a fastest delivery time . As the parent company of Cangzhou Botop, Hebei Allland Steel Pipe Group was established in 2008, located in Cangzhou City, Hebei, China. Allland Group is an ind...

Our products are exported to Egypt Thank customers for their trust in us,  SEALESS STEEL PIPE  4 ", 6" AND 8 "PIPE TO EGYPT, TOTAL 200TONS. We are a  Seamless Steel Pipe Supplier  with many quality products. If you are interested in our products, please contact us.

As a  Seamless Steel Pipe Supplier , share with you. Seamless Steel Pipe  is divided into the following varieties due to their different uses: It is mainly used for general and mechanical structures. It's representative materials (brands): carbon steel 20, 45 steel; alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo and so on. Cold Drawn Seamless Steel Pipe Mainly used in engineering and large-scale equipment to transport fluid pipelines. Representative materials (brands) are 20, Q345 and so on. (Seamless steel pipe for low and medium pressure boilers). Mainly used in industrial boilers and domestic boilers to transport low and medium pressure fluid pipelines. Representative materials are 10 and 20 steel. (Seamless steel pipe for high pressure boiler). Mainly used in power station and nuclear power station boilers which are resistant to high temperature and high pressure fluid transfer headers and pipes. Representative materials are 20G, 12Cr1MoVG, 15CrMoG,...

There are different functions and differences in actual production and use.  ERW Steel Pipe  and spiral welded pipe have many differences in the manufacturing process and shape. Manufactured in accordance with its own characteristics and processes, straight seam welded pipes can have different functions in use. Let's first talk about the main differences between these two types of welded pipes. There should be two types of straight seam welded pipes: one in the middle straight seam welded pipe, and the wall thickness is not too large. Generally, high frequency continuous welding is used to become the high frequency straight seam welded pipe. The straight seam welded pipe is initially formed into a steel plate step by step through a hydraulic press, and then a submerged arc welding method is used, and then processed by thermal expansion and shaping. Then, a spiral line with a different helix angle is used. The former weld line is a straight line. In the consumption of small an...

ERW Steel Pipe : high-frequency straight seam resistance welded pipe, which uses hot-rolled wide coils as raw materials and undergoes pre-bending, continuous forming, welding, heat treatment, sizing, straightening, and cutting. It has the advantages of high dimensional accuracy, uniform wall thickness, good surface quality, and high pressure resistance, but the disadvantage is that it can only produce small and medium-caliber thin-walled pipes, and it is easy to produce gray spots, unfused, and groove-like corrosion defects at the weld. The ERW steel pipe has hot-rolled coil as the raw material, and the wall thickness can be controlled within ± 0.2mm. The two ends of the steel pipe are in accordance with the American APl standard or GB / T9711.1 standard. advantage. In recent years, various natural gas pipeline network projects and gas companies have widely adopted ERW steel pipes as the main steel pipes of urban pipeline networks. ERW stands for resistance welding. Resistance welding...