INTRODUCTION

Steel for laminated springs is a special kind of steel used to create layered springs. These springs consist of many thin steel layers stacked on top of each other. They're commonly used in vehicles, machines, and some tools to offer flexibility and absorb shocks.

To ensure the product quality of steel for laminated springs, 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.

IS 3885 part 2:1992 covers steel for laminated springs.

REQUIREMENTS FOR IS 3885 part 2: 1992

1.     This standard specifies the requirements for hot rolled steel rib and groove sections intended for the production of laminated springs for railway rolling stock.

2.     Steel shall be of the seven grades as specified in the standard. IS 8910:1978 specifies the general requirements for material supply.

3.     The steel shall be produced using any steelmaking process other than the Bessemer process. It must be followed by secondary reining or secondary vacuum melting.

4.     The size of the ingot billet or continuous cast billet for any given size of the finished steel product shall be such that a minimum reduction ratio of 16:1 is ensured from the minimum cross-sectional area of the ingot, billet, or continuous cast billet to the maximum cross-sectional area of the product. However, other reduction ratios may be agreed upon subject to mutual agreement between the purchaser and the manufacturer.

5.     The hot-rolled material must be free of harmful defects such as seams, folds, laps, cracks, deep pits, grooves, excessive scaling, and so on, which can cause cracking during hardening or impair serviceability.

6.     The surface should be reasonably smooth with no distortion, twists, or kinks.

7.     Marking and packing must be done in accordance with Indian standards.

8.     Each flat shall be marked with the manufacturer's name or trademark, grade, and the cast number or any other identification mark that allows the steel to be traced back to the cast from which it was made.

9.     Standard Mark (ISI Mark) may also be applied to the material.

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

TESTS

Tests shall be carried out in accordance with the specified standard.

·       Chemical composition

·       Hardness

·       Decarburization

·       Inclusion rating

·       Freedom from defects

·       Dimensions and Rolling Tolerances

·       Cambering Test

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

Benefits of BIS Certification

The BIS registration provides the following benefits:

1.     Increase sales: BIS-registered products are more likely to be of higher quality and attract more customers.

2.     Reduce the amount of money spent on quality maintenance: Upon getting certification, there's no need to follow separate quality guidelines for products.

3.     Enhance product credibility and reduce environmental risk: BIS-certified items are genuine and trustworthy because they work really well and last a long time.

4.     Ensure the highest level of quality and dependability: The presence of a BIS registration number implies that the product is of high quality and dependability.

5.     Ensure the organization’s expansion: BIS certification boosts your product’s reputation, resulting in significant growth and market exposure.

CONCLUSION

Steel for laminated springs has been included in the mandatory ISI Certification Scheme under the IS 3885 Part 2:1992 standard. Manufacturers cannot import, export, or sell this product in the Indian consumer market without the ISI Mark imprinted.

If you need any assistance with BIS ISI registration for steel for laminated springs or ISI mark certification for steel for laminated springs, 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.