Hot Rolled And Cold Rolled Steel Strips for Electrical Steel Specification IS 18316:2023

Hot rolled and cold rolled steel strips intended for processing into semi/fully processed non-grain oriented electrical steel or fully processed grain-oriented electrical steel are critical materials in the manufacturing of electrical components. These steel strips are used primarily in the production of cores for transformers, motors, and generators. The non-grain oriented electrical steel, which is typically used in rotating machines like motors and generators, provides uniform magnetic properties in all directions. On the other hand, grain-oriented electrical steel is used in transformers due to its superior magnetic properties in the rolling direction, leading to higher efficiency and reduced energy losses. The specific processing of these steel strips—whether hot rolled or cold rolled—ensures the desired magnetic, mechanical, and physical properties required for optimal performance in electrical applications.

BIS certification is necessary for hot rolled and cold rolled steel strips intended for processing into semi/fully processed non-grain oriented electrical steel or fully processed grain-oriented electrical steel to ensure they meet stringent quality and safety standards set by the Bureau of Indian Standards. This certification guarantees that the steel strips possess the required magnetic, mechanical, and physical properties crucial for efficient performance in electrical applications such as transformers, motors, and generators. By adhering to BIS standards, manufacturers can ensure product consistency, reliability, and compliance with regulatory requirements, thereby enhancing consumer trust and supporting the production of high-quality electrical components that contribute to energy efficiency and safety in electrical systems.

Indian Standard IS 18316:2023

As per the latest draft order from the Ministry of Steel, Government of India, hot rolled and cold rolled steel strips intended for processing into semi/fully processed non-grain oriented electrical steel must adhere to the Indian Standard IS 18316:2023. This standard ensures that these steel strips meet essential quality and safety criteria, including the required magnetic, mechanical, and physical properties necessary for their application in electrical equipment such as transformers, motors, and generators. Compliance with IS 18316:2023 guarantees that the steel strips are manufactured to precise specifications, ensuring their reliability, efficiency, and performance in electrical systems. Adhering to this standard is crucial for manufacturers to align with regulatory guidelines, maintain product consistency, and foster consumer trust in the quality and safety of electrical steel products.

Key highlights

Product Name	Hot Rolled and Cold Rolled Steel Strips Intended for Processing of Semi-fully Processed Non-Grain Oriented Electrical Steel or Fully Processed Grain Oriented Electrical Steel.
Applicable Indian Standard	IS 18316: 2023
Applicable Certification Scheme	Product Certification Scheme (ISI Mark Scheme) Scheme 1 - Schedule 2
Compliance Requirement	Mandatory
QCO Link	This standard covers the general technical conditions for steel strips intended for further processing to produce non-grain oriented electrical steel in semi/fully processed condition and grain oriented electrical steel in fully processed condition.
Scope as per Standard	This standard prescribes the requirements of block bottom valve sacks made from PP woven laminated fabric for packaging, storage and distribution of 50 kg cement.

Tests

The following are the major tests for Hot Rolled And Cold Rolled Steel Strips for Electrical Steel Specification

Ladle Analysis (Chemical Composition)
Product Analysis (Chemical Composition)
Freedom from defects
Thickness
Crown
Permissible Width Variations
Edge Camber
Thickness Tolerances
Width Tolerances

Hot Rolled And Cold Rolled Steel Strips for Electrical Steel Specification IS 18316:2023

NOTE:

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Procedure for Domestic Manufacturer
Procedure for Foreign Manufacturer

Timeline for BIS Certification

The approximate timeline to obtain BIS certification for hot rolled and cold rolled steel strips intended for processing into semi/fully processed non-grain oriented electrical steel to use the ISI mark as per IS 18316:2023 is as follows:

For Indian Manufacturers (Standard Timeframe – 30 days)
For Foreign Manufacturers (Standard Timeframe – 180 days)

Conclusion:

Ensuring the adherence of hot rolled and cold rolled steel strips to the Indian Standard IS 18316:2023 is paramount for the advancement of the electrical components manufacturing sector. BIS certification plays a critical role in guaranteeing that these materials meet stringent quality and safety standards, providing the necessary magnetic, mechanical, and physical properties essential for optimal performance in transformers, motors, and generators.

Compliance with these standards not only enhances product reliability and efficiency but also fosters consumer trust and supports regulatory alignment. As the demand for energy-efficient and sustainable electrical technologies grows, maintaining high standards through BIS certification will be instrumental in driving innovation and ensuring the production of superior electrical components in India.

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