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EFW pipe vs ERW pipe
Electric Fusion Welding(EFW steel pipe) refers to an electron beam welding, the use of high-speed movement of the electron beam directed impact kinetic energy is converted to heat the workpiece so that the workpiece leaving the melt, the formation of the weld. It is mainly used for welding dissim...Read more -
Coal tar epoxy pipe storage methods
1. The principle requires coal tar epoxy pipe stacking under palletizing firm to ensure the safety of the premise, according to achieve varieties, specifications palletizing, different varieties of materials to palletizing respectively, to prevent muddy and mutual erosion; 2.Banned in coal tar ep...Read more -
Characteristics of round billet continuous casting
Round billet used in the production of seamless steel tubes of different caliber. Seamless steel pipe production round billet while rotating propulsion and perforation, round billet is inclined to rely on two rollers to rotate the rod core end plug. The inner surface of the inner wall is perforat...Read more -
Application of steel pipes in concrete structures
It is often seen that it is used in water-cooled steel pipe structural systems. This is to use a specially designed structural system to make the water containing antirust and antifreeze constitute a circulation, and reduce the temperature to improve the refractory of the steel. This closed chann...Read more -
Price List for SSAW Steel Pipe 01-14-2020
API 5L/ASTM A53 GR.B, CARBON STEEL, SSAW STEEL PIPE FOB TIANJIN USD/TON Outside Diameter 外径 (mm) 219 273 324 356 406 457 508 610 711 762 813 914 Wall Thickness 6 556 556 556 556 556 556 556 556 561 561 561 561 壁厚 (mm) 7 556 556 556 556 556 556 556 556 561 561 561 561 8 556 ...Read more -
Price List for Seamless Steel Pipe 01-14-2020
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Price List for LSAW Steel Pipe 01-14-2020
API 5L GR.B/ASTM A53 GR.B, CARBON STEEL, LSAW STEEL PIPE FOB TIANJIN Outside Diameter 外径 (mm) USD/TON 406 457 508 609.6 711.1 762 812 863.6 Wall 8 668 668 674 662 667 662 667 667 Thickness 9.53 636 655 662 642 647 642 647 647 壁厚 (mm) 10 636 623 629 642 647 642 647 647 12...Read more -
Price List for Small Diameter ERW Steel Pipe 01-14-2020
API 5L/ASTM A53 GR.B (Small Diameter 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 GB/T3091 GB/T3091 Q235B Q345B Q235B Q345B 33.4 (1″) 2.1-2.4...Read more -
Price List for Hot Rolled ERW Steel Pipe 01-14-2020
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 Q345B Q345B Q235B Q345B 219、245 5.0-11.75 538.18 563.95 462 5.75-11....Read more -
Price List for Hot Expanded ERW Steel Pipe 01-14-2020
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 离港价 USD/TON Q235B Q345B 外径 (mm) 壁厚 (mm) Q235B Q345B 245, 273 5.0-9.28 565.67 610.31 450,...Read more -
Causes of pits on the surface of seamless steel pipes and treatment methods
Continuous pits on the surface of seamless steel pipe cause: 1. Heavy wear on the rolls and grooves 2. The roll is not cooled well, and the surface is sticky steel 3.The surface of the conveying roller table is not smooth 4.The high temperature heating time of the abandoned tube in the heating is...Read more -
Production steps of spiral steel pipe
How to produce a variety of spiral steel pipes from a piece of steel? Today I will introduce to you, the steps in the production of spiral steel pipes are briefly introduced. (1) Various inspections of raw materials. Raw materials generally refer to strip coils, welding wires, fluxes, etc. Before...Read more