What it is
Welded (ERW) and seamless pipes, and square or rectangular hollow sections, for water lines, structures, scaffolding, furniture and machinery.
IS 1239 (Part 1) light, medium, heavyIS 3589 water and sewage pipesIS 1161 structural tubesIS 4923 hollow sectionsIS 17875 / IS 17876 stainless pipes
Rules before you buy or sell
- IS 1239, IS 3589, IS 1161, IS 4923, IS 17875 and IS 17876 are on BIS's product-certification list; check with BIS whether the ISI mark is compulsory for your item before you sell or import.
- The HR strip used to make welded pipe (IS 10748, IS 15647) is under the Steel QCO.
- Check the current import and export policy for your exact 8-digit HS code in the DGFT ITC(HS) schedules.
Storage and handling
Rack by size on raised supports; cap ends to keep dirt and water out.
Businesses that use it
MS Pipe Fittings (up to 100 mm) →Wrought Iron Furniture →MS Fabrication / Steel Furniture Unit →Heavy Fabrication (Tanks, Pressure Vessels, Piping) →