News
-
API 5L GR.B/ASTM A53 GR.B (HOT EXPANDED ERW STEEL PIPE)
API 5L GR.B/ASTM A53 GR.B (HOT EXPANDED ERW STEEL PIPE) Outside Diameter Wall Thickness FOB TIANJIN Outside Diameter Wall Thickness FOB TIANJIN 外径 (mm) 壁厚 (mm) 离港价 USD/TON 外径 (mm) 壁厚 (mm) 离港价 USD/TON 245, 273 5.0-9.28 632.44 450, 457, 508, 530 6...Read more -
API 5L PSL1, Seamless Steel Pipe Price List
Read more -
What are the precautions for welded steel pipe
1. Cleaning and Preparation: Before you start welding, make sure all materials are clean and free of oil and rust. Remove any paint or coating from the weld area. Use sandpaper or a wire brush to remove the oxide layer from the surface. 2. Use the correct electrode: Choose the appropriate electro...Read more -
What is the difference between a seamless steel pipe and a welded steel pipe
1. The name coverage is different. According to different forming methods, steel pipes can be divided into welded steel pipes and seamless steel pipes. Precision steel pipes are included in welded steel pipes or seamless steel pipes, and their coverage is smaller. Precision steel pipes are steel ...Read more -
How are industrial seamless steel pipes produced
1. The production and manufacturing methods of seamless steel pipes can be divided into hot-rolled pipes, cold-rolled pipes, cold-drawn pipes, extruded pipes, etc. according to different production methods. 1.1. Hot-rolled seamless pipes are generally produced on automatic pipe rolling units. The...Read more -
Comparative analysis of seamless steel pipe and ERW steel pipe
①Outer diameter tolerance Seamless steel pipe: The hot rolling forming process is used, and the sizing is completed at around 8000C. The raw material composition, cooling conditions, and cooling status of the rolls of the steel pipe have a great impact on its outer diameter. Therefore, the outer ...Read more