Electrical steel 3405

Electrical steel 3405 / 27G140 / 30G140

p> Steel grade 3405 is an electrotechnical sulphurous alloy with an irregular chemical composition. The composition and order of smelting is determined by the manufacturer.
The basis of the material is iron, with a share of up to 96%. A sheet of metal can be bought with a silicon content of 2.8 to 3.8%, which determines the magnetic properties, electrical resistance and density of the material.
Special properties
The low price per sheet of iron is due to the lack of shortage of alloy components.
The high content of silicon in steel provides a significant indicator of relative magnetic permeability in a weak and medium field, a decrease in eddy current losses, an increase in electrical resistivity, up to 0.5-10⁶ Ohm per meter , reducing the density to 7650 kilograms per cubic meter.
High magnetic permeability and low losses in weak fields are also facilitated by the rib structure of the alloy, oriented in the direction of rolling.
Applications
Cold-rolled thin sheet anisotropic steel, whose sheet price is affordable, is widely used in the production of various electrical equipment. Including, for the manufacture of components for magnetic circuits of electric machines, various devices and transformers

Chemical composition of material 3405

Material Magnetic Properties 3405 .