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Hot dip galvanized steel pipe

ERW Galvanized Steel Pipe

ERW Galvanized Steel Pipe

Steel Pipes manufacturers and Exports huge range of ERW Galvanized Steel Tubes & Steel Pipes.

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 is raised to the welding point. Outside flash is removed by a cutting tool as the tube leaves the electrodes, inside flash is removed either by an air hammer or by passing a mandrel through the welded tube after the tube has been cooled. This is termed as Electric Resistance Welded or ERW tube/pipe.

Steel Pipes manufacturers and Exports huge range of ERW Galvanized Steel Tubes & Steel Pipes. 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 is raised to the welding point. Outside flash is removed by a cutting tool as the tube leaves the electrodes, inside flash is removed either by an air hammer or by passing a mandnel through the welded tube after the tube has been cooled. This is termed as Electric Resistance Welded or ERW tube/pipe.

Hot dip galvanizing
Galvanized pipe process characteristics
Delivery information:
  • Material: SPHC,SPHD,SPHE,Q195-Q235,SAE1006
  • Size: OD (6-610 mm) x WT (1-50mm)
  • GTC (galvanized threaded and coupling) steel pipe: DN15-DN200 (NB1/2"-NB8")
  • GPE (galvanized plain end) steel pipe: DN15-DN200
  • Grooved steel pipe: DN15-DN200 (NB1/2"-NB8")
  • Section type: round, square, rectangular, oval and other special section type.

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