No heating is carried out in the production process, so there are no defects such as pitting and scale which often occur in hot rolling, and the surface quality is good and the smoothness is high. Moreover, the dimension precision of cold-rolled precision of cold-rolled steel coil is high, and the properties and microstructure of the precision of cold-rolled steel coil can meet some special application requirements, such as electromagnetic properties and deep drawing properties.

Titanium may be replaced by niobium.
Carbom and nitrogen shall be completely bound