IBC (Tianjin) Industrial Co.,Ltd manufacturers and Exports huge range of ERW Hot Dipped Galvanized Steel Pipe. In the first layer of multi-layer welding weld, try to melt the zinc layer and make it vaporized, evaporation. This can greatly reduce the zinc liquid remained in the weld. The same method used for fillet welds. First move the electrode tail forward about 5~7mm, and then return to the original position to continue welding after melting the zinc layer. If the choice of short slag electrode such as J427, there will be a very small bite edge tendency; Back and forth input electrode can get the welding quality without defects.
What ERW Hot Dipped Galvanized Pipe?
Hot Galvanized Steel pipe is a pipe that has been dipped into a molten zinc bath. The layer of zinc provides a protective boundary, permitting steel to use in moderately corrosive services and outdoors services.
For pipes or tubes size 4 inch (10.2mm) OD and below, strip is fed into a set of forming rolls which consists of horizontal and vertical rollers so placed as to gradually from the flat strip in to a tube which is then allowed to pass the welding electrodes. The electrodes are copper disks connected to the secondary of a revolving transformer assembly. The copper disk electrodes make contact on each side of the seam and temperature raised to the welding point. Outside flash removed by a cutting tool as the tube leaves the electrodes, inside flash removed either by an air hammer. Or by passing a mandrel through the welded tube after the tube cooled. This is termed as Electric Resistance Welded or ERW tube/pipe.
Theoretical Weight Of ERW Hot Dipped Galvanized Pipe
What ERW Hot Dipped Galvanized Pipe Specification is?
We supply and manufacture ERW hot galvanized steel pipe in accordance with EN, ASTM, JIS, GB standards, specified delivery conditions and final customer specifications like greenhouse frame, fire main pipe and so on. Special sizes of steel pipes and delivery issues can further negotiated and we provide a wide range of solutions for purchasing departments to select alternative grades without specifying product specifications.
Specification API SPEC 5CT
API SPEC 5L Specification
Specification ASTM
DIN Specification
BS Specification
EN Specification
JIS Specification
Advantage of Hot Dipped Galvanized Round Pipe
Hot dipped galvanized round pipe is the main structural low liquid steel material in the water, chemical transfer, energy project, scaffolding, structural project etc. It manufactured by ERW & HFW. The fabrication process by hot dipped zinc coating thickness is 220g/m2-800g/m2, The main advantage is the zinc coating will be the big thickness, anticorrosive is good. Normal usage validity time will be around 25-50 years. The pipe use in adverse environment, like strong acid, wet, high temperature etc. Also it can be thread and coupling at the two ends the standard are ASTM and BS.
Conclusion
IBC Metal Group manufacturers and supply all kinds of pipes. Such as ERW hot dipped galvanized pipe, LSAW steel pipes, SSAW steel pipes, Square pipes, Rectangular pipes, all welded sizes. And also seamless pipes, carbon pipe of stainless steel pipes. For more information, please contact with us today!
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