IS 648:2022 Cold Rolled Non-Oriented Electrical Steel Sheet and Strip

IS 648:2022 Indian Standard specifies requirements of cold-rolled non-oriented electrical steel sheets and strips of fully processed type (CRNO). The standard gives the manufacturing, chemical, and physical requirements for these materials to ensure their safety and performance when applied to electrical equipment. The quality and reliability of electrical goods require that the items should be manufactured according to this Indian standard.  The standard also allows procedures for making certification that products meet some required national safety benchmarks.

Mandate of BIS IS 648:2022

The mandatory BIS IS 648:2022 mandates its implementation for all cold-rolled rolled non-oriented electrical steel sheets. Every product requires a test certificate and the ISI Mark has to be affixed. Any non-compliance results in a penalty and strict action by the Bureau of Indian Standards.

BIS IS 648:2022 is a standard for cold-rolled non-oriented electrical steel sheets and strips used in electrical applications. The requirements include their manufacture, chemical composition, and physical properties, thereby ensuring safety and performance. This standard applies to manufacturers and products in the electrical steel industry of India.

Application of BIS IS 648:2022

• Standards for Manufacturing: Used in the production of cold rolled non-oriented electrical steel sheet/strip used for electrical purposes.
• Transformer Manufacturing: Material is important for transformer as well as electrical appliance manufacturers to maintain safety and performance.
• Quality Certifications: This is necessary because it forces the manufacturer to maintain the quality standards. It would allow the achievement of the ISI mark.
• Consumer Protection: This would protect consumers because the products would be designed to meet national safety standards and regulatory requirements.
• Industry Acceptance: Provides for conforming to the industry's needs, and builds a culture of reliability, and efficiency in electrical usage as well.

• Scope of Specification: This specification addresses requirements for cold rolled non-oriented electrical steel sheets with silicon content up to 3.5%.
• Performance Requirement: It specifies the requirements for core loss as well as several magnetic properties for optimum use in electrical applications.
• Type of Insulation: Prescribes requirements for both insulated as well as uninsulated steel sheets based on user requirements.
• Certification Requirement: The certification is BIS certified for compliance and also for quality.
• International Conformity: IEC 60404-8-4 compliant, thus ensuring compatibility with international requirements.

Terminology of IS 648:2022

These are some of the key terms used about BIS IS 648:2022:
 

• CoLd Rolled Non-Oriented Electrical Steel: A steel sheet rolled at room temperature. The process enhances its magnetic properties for electrical use.
• Fully Processed Type: It is the steel that has undergone full processing and meets the corresponding mechanical and magnetic requirements.
• Specification: Description of the specifications and standards of the product.
• Tensile Strength: Maximum tensile (pulling) stress a material can withstand before failing.
• Dimensional Tolerance: Allowable variations of dimensions of any one physical dimension of the product for uniformity and fit.
• Technical Committee: One that develops and revises standards for wrought steel products.
• Certification: It ensures compliance of a product to specified standards and normally leads to an ISI mark for conformance.
• Equivalence: Indicates if the standard is equal to the international standards; in this case, it is marked "Not Equivalent."
• Amendments: The changes that have been incorporated into the standard since its first printing.
• Product Specification: The description of the product given by the standard about its characteristics and performance.

The IS 648:2022 BIS specification of cold rolled non-oriented electrical steel sheets and strips has the following advantages:

• Quality Certification: It provides high-quality manufacturing, chemical, and physical parameters that enhance the confidence level about the electrical steel used in transformers and motors.
• Market Opportunity: The IS 648:2022 is imperative for these products if they want to sell them in the Indian Market. It gives an edge to those manufacturers who are certified by the relevant authority.
• Consumer Protection: The standard protects consumer interests because products will meet certain performance requirements thus reducing the chances of failure of products,
• International compatibility: Coherence with international standards (IEC 60404-8-4), facilitates easier export and acceptance in overseas markets.
• Compliance with laws: Assist manufacturers in conformance to Steel and Steel Products (Quality Control) Order, so they will avoid penalties due to non-conformance.

• Compulsory Compliance: Products should comply with IS 648:2022 at the time of its release.
• Issuance of Certificate: Products shall be accompanied by a Test Certificate issued by BIS. Also, these products should bear the ISI Mark released by the BIS.
• Authority and Certification Authority: The authority and certification procedure lies with the BIS.
• Legal punishments: Non-compliance can invite legal procedures as per the provisions of the BIS Act.
• Quality Assurance Testing: The products should undergo thorough testing concerning chemical and physical properties.
• Audit: Regular Inspections are done periodically to ensure continuous conformations.

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