IS 11947:1987 – BIS Certification for Soft Magnetic Iron Rods, Bars, Flats and Sections

In today’s industrial landscape, ensuring the quality and reliability of raw materials is essential for safety, efficiency, and long-term performance. Soft magnetic iron products such as rods, bars, flats, and sections are widely used in electrical engineering, transformers, motors, and other electromagnetic applications. To maintain uniform standards across manufacturers, the Indian Standard IS 11947:1987 plays a crucial role. Compliance with this standard, governed by Bureau of Indian Standards, ensures that these materials meet stringent quality and performance requirements.

Overview of IS 11947:1987

IS 11947:1987 specifies the requirements for soft magnetic iron products, including rods, bars, flats, and sections. These materials are primarily valued for their high magnetic permeability, low coercivity, and minimal hysteresis loss, making them suitable for electromagnetic applications. The standard outlines the chemical composition, mechanical properties, dimensions, tolerances, and testing methods required for consistent quality.

Manufacturers producing these materials must adhere to these guidelines to ensure that their products perform efficiently in critical applications such as transformers, relays, and magnetic circuits.

Importance of BIS Certification

BIS For Soft Magnetic Iron Rods, Bars, Flats and Sections BIS certification is a mark of quality, safety, and reliability in India. For soft magnetic iron products, obtaining BIS certification under IS 11947:1987 signifies that the materials have been tested and verified according to national standards.

This certification ensures:

  • Consistency in material composition and performance
  • Reduced risk of product failure in electrical systems
  • Enhanced trust among buyers and end-users
  • Compliance with regulatory and industry requirements

In many cases, products covered under Quality Control Orders (QCOs) must mandatorily obtain BIS certification before being sold in the Indian market.

Key Requirements Under the Standard

The IS 11947:1987 standard covers several important aspects that manufacturers must follow:

1. Chemical Composition
The standard defines the permissible limits for elements such as carbon, silicon, sulfur, and phosphorus. Maintaining proper composition is essential for achieving the desired magnetic properties.

2. Mechanical Properties
The materials must meet specific requirements related to strength, ductility, and hardness to ensure durability during use and processing.

3. Magnetic Properties
Since these products are used in electromagnetic applications, their magnetic performance is critical. The standard ensures low energy losses and high efficiency.

4. Dimensions and Tolerances
Uniform size and shape are necessary for compatibility with industrial applications. The standard provides detailed guidelines on dimensions and permissible variations.

5. Testing and Inspection
Products must undergo rigorous testing, including chemical analysis, mechanical testing, and magnetic property evaluation, to confirm compliance.

BIS Certification Process

Obtaining BIS certification for soft magnetic iron rods, bars, flats, and sections involves a structured process:

Application Submission
Manufacturers must submit an application along with product details, manufacturing processes, and supporting documents.

Product Testing
Samples are tested in BIS-recognized laboratories to ensure they meet IS 11947:1987 requirements.

Factory Inspection
BIS officials inspect the manufacturing facility to verify production capabilities, quality control systems, and compliance with standards.

Grant of License
Once all requirements are fulfilled, BIS grants a license allowing the manufacturer to use the ISI mark on their products.

Ongoing Surveillance
Regular inspections and testing ensure continued compliance with the standard.

Role of ISI Certification

The ISI mark is a symbol of conformity to Indian standards. For soft magnetic iron products, ISI certification indicates that the materials meet all specifications under IS 11947:1987.

Having the ISI mark provides several advantages:

  • Builds credibility in domestic and international markets
  • Ensures customer confidence in product quality
  • Facilitates smoother approvals in industrial and government projects
  • Reduces the likelihood of product rejection

BIS License and Compliance

BIS License for Soft Magnetic Iron Rods, Bars, Flats and Sections BIS license is mandatory for manufacturers whose products fall under compulsory certification schemes. This license authorizes the use of the ISI mark and confirms that the manufacturer complies with all regulatory requirements.

To maintain the license, manufacturers must:

  • Follow consistent quality control procedures
  • Allow periodic inspections by BIS authorities
  • Ensure continuous adherence to IS 11947:1987

Failure to comply can result in suspension or cancellation of the license.

BIS QCO and Its Significance

Quality Control Orders (QCOs) are issued by the government to enforce mandatory BIS certification for specific products. If soft magnetic iron products are notified under a QCO, manufacturers cannot sell or distribute them without BIS certification.

The objective of QCOs is to:

  • Eliminate substandard products from the market
  • Protect consumer interests
  • Promote fair competition among manufacturers
  • Strengthen the overall quality ecosystem in India

Role of BIS Consultants

Navigating the BIS certification process can be complex, especially for new manufacturers. Professional consultants play an important role in simplifying the process. They assist with documentation, application filing, testing coordination, and compliance management.

A reliable consultant ensures that:

  • The certification process is completed efficiently
  • Errors and delays are minimized
  • Manufacturers remain compliant with evolving regulations

Conclusion

EVTL India is one of the leading BIS Consultant in India , helping manufacturers obtain their BIS licences hassle-free. IS 11947:1987 serves as a vital benchmark for ensuring the quality and performance of soft magnetic iron rods, bars, flats, and sections. BIS certification under this standard not only guarantees compliance with national regulations but also enhances product credibility in the market.

For manufacturers, obtaining BIS certification and the ISI mark is more than a regulatory requirement—it is a commitment to quality, safety, and excellence. By adhering to these standards, businesses can strengthen their market position, build customer trust, and contribute to the growth of a reliable industrial ecosystem in India.