Straight seam welded pipe manufacturers
The company passed the ISO 9001 quality management system certification in 2004 and successively obtained the special equipment production license SY/T5037-2000; special equipment manufacturing license (pressure piping components) GB/T9711-2012 (PSL1/PSL2); American Petroleum Institute API 5L (PSL1/PSL2) product certification; China Petroleum Material Supplier Access Certificate and PetroChina HSE Health and Safety Environment System Certification; GB/T28001 Employee Health and Safety Management System Certification; ISO14001 Environmental Management System Certification, and rated as Tianjin Import and Export The Inspection and Quarantine Bureau classifies and manages Class II enterprises and Tianjin high-tech enterprises. The "Pengzhan" brand spiral welded pipe produced by the company has been rated as Tianjin Famous Brand Product and Tianjin Famous Trademark by Tianjin Municipal Government for many years.
The outer diameter of the spiral seam double-sided submerged arc welded steel pipe produced by our company ranges from φ219mm to φ3620mm, and the wall thickness ranges from 5mm to 25.4mm. Salt brine, steel structure, bridge, foundation piling, port machinery, electric power and other industries. The company can not only conduct production inspection according to API 5L (PSL1/PSL2), ASTM A252, GB/T9711-2012 (PSL1/PSL2) standards, but also purchase and process raw materials according to the needs of different users. The steel grade can be GR.AB , X42-X70, GR.1-3, L210-L485, S235 and above, SS400 and above, Q235 (A, B, C), Q345 (A, B, C, D, E), etc.