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ERW Galvanized & Black Pipes has been the trade mark of Shiv Ram Jindal Group since its inception in 1973. Ravindra Tubes Limited – established in the same year, has grown many folds with its State – Of The Art manufacturing technology, stringent quality control and ever nourishing workmanship.

Square Hollow Sections & Rectangular Hollow Sections is our latest addition to the product list. With the increasing demand of hollow sections, the company has started manufacturing some sizes of the same, and we are working hard to add more sizes in the near future to provide our customers – One Stop Solution to all their ERW Pipes & Hollow Section requirements.

Apart from Ravindra, Shiv Ram Jindal group has more feathers on its crown. Hisar Metal Limited, Jindal Agro Corp Private Limited, Ajay Polymers, United Dedorative (P) Limited are some other ventures of the group who have marked a fabulous growth & recognition in their respective industries. With our vision of providing Cost-effective and Environment-friendly solutions by means of Industrial Innovation, Empowered Workforce and Efficient Management Practices, we are growing at a rapid pace. We always try to induce Value-building and Productivity-led Growth leveraging the opportunities in the steel industry.

The Ravindra Quality Policy :

We intent to become a loyal supplier to our customers by providing them excellent quality products at most competitive price, meeting their requirements as well as expectations and continually improving the effectiveness of Quality Management System.

Standards & Specifications

  • IS : 1239 For use in water, gas, air and steam lines (Part-I)
  • IS : 1161 Mild Steel Tubes for structural purpose in Grades : YST 210, YST-240, & 310
  • IS : 3601 Steel Tubes for mechanical and general engineering purpose. Grades : WT 210, WT 240, WT 310
  • IS : 4923 The Company has ambitious future growth programs and has diversified into value added items i.e. Hollow Section (Square/Rectangular Tubes)

Process

The process utilizes the latest technology and modern equipments for producing ERW Pipes.

Slit preparations: HR Coils are slitted to predetermined widths for each size of pipe and thickness. Slitted coil is uncoiled at the entry of mill and the ends are sheared and welded one after another to make it single endless strip.

Forming: Slitted coils are initially formed into U shape and then into a cylindrical shape with open edges using a series of forming rolls.

Welding: The open edges are heated to the required temperature through high frequency induction current and press welded by forge rolls making perfect and strong butt weld without filler meterials.

Debeading: Weld flash on top is trimmed out through carbide tools.

Seam Annealing: Whenever required, welding portion and heat affected zone is cooled down in air cooling bed.

Sizing & Cutting: After water quenching, slight reduction is applied to pipes with sizing rolls to give them desired accurate outside diameter. Pipes are cut to required lengths by flying cut off disc/saw cutter.

Facing and Bevelling: The pipe ends are faced and bevelled by the end facer. All the processes are continuous with auto arrangements. These plain ended tubes go for further processing as per the customer need like galvanizing, threading, black varnishing etc.

Packing: Finishing pipes are bundled in desired number of pieces as per customer's requirement and packed properly to ensure freshness till delivery.

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