Silicon steel, also known as electrical steel or transformer steel, is a type of low carbon steel with added silicon. Silicon steel is known for its magnetic properties, making it useful for electrical transformers and other electromagnetic devices. There are several synonyms for the term silicon steel, including grain-oriented steel, non-grain-oriented steel, and utility-grade steel. Grain-oriented steel has a specific crystal orientation, which enhances its magnetic properties. Non-grain-oriented steel is used in rotating machines such as motors and generators, while utility-grade steel is used in low-voltage transformer cores. Regardless of the synonym used, silicon steel is a crucial material in the production of modern electrical devices and machinery.