IS 648:2022
Steel and Iron - Cold rolled non-oriented electrical steel sheets and strip-fully processed type (CRNO)
Summry
Cold Rolled Non-Oriented (CRNO) Electrical Steel Sheets and Strips are high-quality steel materials used in electric motors, transformers, and generators. Fully processed CRNO steel offers uniform magnetic properties in all directions, reduced core loss, and improved efficiency. It is manufactured to precise thickness, surface finish, and magnetic specifications for electrical applications.
Why BIS Certificate is Mandatory for Cold rolled non-oriented electrical steel sheets and strip-fully processed type (CRNO) ?
BIS certification is mandatory for CRNO steel to ensure adherence to Indian Standards for chemical composition, magnetic performance, and mechanical strength. Certification prevents substandard materials that could increase energy loss, reduce efficiency, or cause equipment failure, safeguarding consumer safety and ensuring reliability in electrical machinery and industrial applications.
What is BIS Certified for Cold rolled non-oriented electrical steel sheets and strip-fully processed type (CRNO) ?
BIS certified specification for CRNO steel is defined under IS 15961 – Cold Rolled Non-Oriented Electrical Steel Sheets and Strips. It specifies chemical composition, magnetic properties, thickness tolerance, surface finish, and mechanical strength. Compliance ensures the steel is suitable for high-efficiency electrical devices and meets performance and safety standards required in India.
Test required for Cold rolled non-oriented electrical steel sheets and strip-fully processed type (CRNO)
| Title | Mandatory/Optional |
|---|---|
| Condition of Delivery | Required |
| ChemicalComposition | Optional |
| SurfaceCondition | Required |
| Magnetization Test | Required |
| Core loss | Required |
| Anisotropy of losses | Optional |
| Surface Insulation Characteristics | Required |
| Thermal effect on coating | Optional |
| Resistance to solvents and cleanliness | Optional |
| Geometric | Required |
| Characteristic | -- |
| Stacking Factor | Required |
| Bend Test | Required |
Benefits of BIS Certification for Cold rolled non-oriented electrical steel sheets and strip-fully processed type (CRNO)
1. Assured Quality and Performance BIS-certified CRNO steel meets strict Indian Standards, ensuring uniform magnetic properties, low core loss, and high efficiency in electrical equipment.
2. Energy Efficiency Certification guarantees optimized material for minimal energy loss, supporting environmentally friendly and cost-effective electrical systems.
3. Safety and Reliability Using BIS-approved CRNO steel reduces the risk of equipment overheating, failure, or fire hazards, ensuring operational safety.
4. Legal Market Access BIS certification is mandatory for manufacturing and importing CRNO steel in India, helping businesses avoid regulatory penalties and enabling smooth market entry.
5. Consumer and Industry Confidence The BIS mark builds trust among manufacturers, engineers, and end-users, enhancing brand credibility and acceptance in domestic and industrial markets.