What is Silicon Steel? Differences Between NGO and GO Steels and Technical Analysis

• Guide
• CHY Engineering Team

In every system where electrical energy is transformed into mechanical energy or from one voltage level to another, the most critical component determining efficiency is the use of silicon steel (electrical steel). Produced by adding specific amounts of silicon to low-carbon steel, this special material minimizes magnetic losses and saves energy. At CHY Steel Service Center, we offer precision silicon steel solutions required by the energy and electricity sectors with our professional steel service infrastructure.

What is Silicon Steel? Technical Structure and Magnetic Efficiency

Silicon steels are special alloys containing between 0.5% and 4.5% silicon. The addition of silicon reduces energy losses called "eddy currents" by increasing the electrical resistance of the steel. In this process, the steel is processed with cold rolled steel (CR) principles to achieve the desired thickness and magnetic properties.

[Image showing the crystal orientation in grain-oriented vs non-oriented silicon steel]

These sheets are divided into two main groups according to their magnetic crystal structures:

• NGO (Non-Grain Oriented): Non-oriented sheets with identical magnetic properties in every direction, generally used in rotating machinery (motors).
• GO (Grain Oriented): Oriented sheets with magnetic properties optimized in the rolling direction, used in high-efficiency transformers.

Why Should Silicon Steel Be Preferred?

Main advantages of using silicon steel in energy transmission and transformation systems include:

• Low Watt Loss: Increases system efficiency by minimizing energy lost as heat.
• High Magnetic Permeability: Allows for higher power to be obtained in smaller sized designs.
• Low Magnetostriction: Reduces vibration and noise (humming sound in transformers) during operation.

Precision Silicon Steel Processing with CHY Steel Service Center

Silicon steels must be processed by being exposed to very low mechanical stress so as not to lose their magnetic properties. Expertise solutions we offer at our factory:

• Precision Coil Slitting: We work with millimetric tolerances in our precision coil slitting lines for electric motor stator-rotor sheets or transformer cores. Our blade sharpness prevents thermal effects that would disrupt the magnetic structure of the sheet.
• Cut-to-Length and Packaging: We perform cut-to-length while preserving surface quality for transformer lamination productions. Due to the sensitivity of products to moisture, we keep our packaging and logistics processes at the highest level.
• Strategic Sourcing: We support your projects with our strategic sourcing model for world-standard material continuity in NGO and GO grades.

Application Areas: Everywhere Energy Is Present

Silicon steel is the foundation of the modern world's electrical infrastructure:

• Electric Motors: Internal cores of all electric motors from white goods to industrial robots.
• Transformers: Grid transformers, isolation transformers, and instrument transformers.
• Generators: Energy production units in wind turbines and hydroelectric plants.
• Home Appliances: AC compressors, aspirators, and small home appliance motors.

CHY Steel: Energy Solutions for the Future

In today's world where energy efficiency is more important than ever, we offer sheets with the best magnetic performance without compromising our quality policy. You can access technical details about our Electrical Silicon Steel product group and review our company's vision on the About Us page.

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Frequently Asked Questions (FAQ)

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Technical Support and Get a Quote

To optimize magnetic losses in your project and for your silicon steel requests, you can reach our engineers via our Contact page. Continue following our Guide page for our industry articles.