INTRODUCTION

Structural steel is a specific type of steel recognized for its strength, durability, and capacity to withstand substantial loads. This kind of steel is primarily employed in constructing buildings, bridges, and other similar structures and come in various shapes and size.

To ensure the product quality of structural steel, the Bureau of Indian Standards (BIS) has made it mandatory for manufacturers to undergo BIS registration and obtain the BIS ISI mark before selling it in the market. Manufacturers can use the ISI Mark on their products only after obtaining a license from BIS that is granted after BIS registration. The presence of the ISI mark on a product indicates that it complies with BIS's stringent quality standards

This standard specifies the requirements for rolled structural steel plates, sections, flats, and bars used in the construction of ship hulls. Grade I is intended for general use, whereas Grade II and Grade III are intended for special uses. This standard does not apply to rivet bars used in ship construction.

REQUIREMENTS FOR IS 3039:1988

1.     The steel shall be produced using an open hearth, an electric furnace, basic oxygen, or any other process approved by the purchaser.

2.     The nitrogen content of steel produced by the basic oxygen process shall not exceed 0.007 percent.

3.     Grade I steel can be killed or semi-killed. Grade II steel shall be of the killed type, manufactured with fine grain practice and the use of aluminium or other grain refiners. Grade II steel can also be supplied semi-killed in thicknesses up to and including 35 mm if the steel over 25 mm thickness is normalized. Grade III steel shall be supplied in fully killed conditions, manufactured with fine grain practice, and the use of aluminium and other grain refining elements such as Nb, V, and Ti.

4.     All materials must be free of cracks, surface flaws, segregation, lamination, pipe, and other defects which will be harmful to the service of the material.

5.     Surface defects may be removed by chipping or grinding so that the material thickness does not fall below 93 percent of the nominal thickness, but no more than 3 mm at the dressed location.

6.     Every finished product must be marked with the inspecting authority's brand in at least one location by the manufacturer.

7.     Unless otherwise agreed, the following information must also be marked on each product:

·       Manufacturer’s name or trade-mark

·       Grade of steel

·       Cast number

·       Purchaser’s identification mark, if required by the purchaser.

8.     The standard mark (ISI Mark) may also be applied to the material.

9.      Manufacturers must obtain a BIS license from the Bureau of Indian Standards to use a standard mark (ISI Mark).

TESTS

The following test shall be carried out in accordance with the standard.

·       Tensile test

·       Impact test

·       Chemical composition

·       Tolerance

Process for BIS ISI Mark Certification

To know the process in detail, please visit:

• ISI Mark Certification for Domestic Manufactures
• ISI Mark Certification for Foreign Manufactures

Under BIS Registration Products ISI and CRS

• BIS CRS Registration For IT Products List
• ISI Mark Registration For ISI Products List

CONCLUSION

Structural steel has been included in the mandatory ISI Certification Scheme under the IS 3039: 1988 standard. This product cannot be exported, imported, or sold in the Indian consumer market without the ISI Mark imprinted.

If you need any assistance with BIS ISI registration for structural steel or ISI mark certification for structural steel, you can reach out to Evtlindia. We provide assistance with all documentation formalities with India's BIS office, ensuring a smooth and hassle-free registration experience, guiding you through the entire process from start to finish.

You can contact us via email at contact@evtlindia.com or by phone at 9560935898. Feel free to get in touch with us anytime for the support you need.