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API 5L/ASTM A53 GR.B (Hot Rolled ERW Steel Pipe)
API 5L/ASTM A53 GR.B (Hot Rolled 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 219、245 5.0-11.75 971.24 426 5.75-11.75 994.50 273 5.0-11.75 971.24 12.5-1...Read more -
API 5L/ASTM A53 GR.B (HOT EXPANDED ERW STEEL PIPE)
API 5L/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 1011.86 450, 457, 508, 530 6.5-11.98 1050.62 9.45-9...Read more -
Oil pipeline welding technology
For conventional oil pipeline welding, the quality is difficult to control and difficult to achieve the required welding slag are not allowed inside, however, more effective and widely used welding backing is made, manual arc welding method to cover up. In this way a clear arc, welding operation ...Read more -
Introduction of IPN8710 and 2/3 PE Coating
IPN8710 anticorrosive Coating steel pipe. Firtly,by aliphatic polyurethane prepolymer and high-quality epoxy resin, pigments, additives, solvents. Specialized in food, drinking water equipment, contact by ShuPeiShui pipelines, corrosion on the surface of the water tank. Secondly, the performance ...Read more -
Electrodes for welding
Welding electrode consists of two parts, the core and coating. Metal core welding electrodes are outside the paint (coating) uniform pressure applied to carefully solder core. Different types of welding, welding core is different. Welding electrode core metal core, in order to ensure the quality ...Read more -
Linear defects in steel
Steel tube as an inside surface of the tube in the process of hot-rolled wear plug fatigue caused by wrinkling of the short and shallow scratches or the inner tube causes the surface roughness, the system in the subsequent pulling process, the existence of the inner wall of the small tube former ...Read more