Bend Rolled steel pipe or Longitudinal steel pipe or Straight seam steel pipe is used as Water steel pipe, Oil pipe and Gas pipe. All welding seams are under Submerged Arc Welding for both inside and outside.
  • Machine Capacity : ND.20"- ND.160 "(ND.500-ND.4,000 mm)
  • Production Capacity : 100,000 Metric tons / year
Step01
Steel Plates to Standard JIS G3101 Grade SS400 or as on request

Step02
Plate Cutting
Steel Plates can be cut and bevelled at specified dimensions and degrees
by 2 methods:
Method 1 By Side Milling M/C

Step03

Method 2 By Gas Cutting

Step04
Plate Rolling
Plate Rolling by Bend Rolled Machine
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Step05
Longitudinal Welding
Longitudinal Welding by Tandem Submerged Arc Welding for both inside and outside (2 Welding Heads, DC/AC Method) to get full penetration
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Step06
Pipe Assembly
Pipe are assembled together by Hydraulic Clamping Ring at specified length
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Step07
Circumferential Welding
Circumferential Welding Tandem Submerged Arc Welding for both inside and outside (2 Welding Heads, DC/AC Method) to get full penetration
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Capacity