Non oriented silicon steel classification

A. Silicon steel sheet can be divided into two types: low silicon and high silicon according to its different silicon content. Low silicon wafer contains less than 2.8% silicon, it has a certain mechanical strength, mainly used in the manufacture of motors, commonly known as motor silicon steel sheet; High silicon wafer silicon content of 2.8%-4.8%, it has good magnetism, but more brittle, mainly used in the manufacture of transformer core, commonly known as transformer silicon steel sheet. There is no strict boundary between the two in actual use, and large motors are often manufactured with high silicon wafers.

B. According to the production and processing technology, it can be divided into hot rolling and cold rolling, and cold rolling can be divided into two types: grain no orientation and grain orientation. Cold-rolled sheet thickness is uniform, surface quality is good, high magnetism, therefore, with the development of industry, hot-rolled sheet has a tendency to be replaced by cold-rolled sheet (China has clearly required to stop the use of hot-rolled silicon steel sheet, that is, the early call "cold instead of heat").