Stal elektrotekhnicheskaya 3408, Dnepropetrovsk region.

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Electrical steel 3408

Electrotechnical transformer steel: marking
The marking of this type of metal represents a number, where its digits indicate:

1. The first is the structural state of the metal and the class of its rolling. It can be hot-rolled (1) or cold-rolled (2) isotropic, as well as cold-rolled anisotropic steel.(//tractor-service.com)
2. The second one - displays the percentage of silicon. It accepts the following permissible values from 0 to 5. The starting value – less than 0.4% is designated as 0. The second digit 1 corresponds to the content of Si 4 – 0.8%. The following four values show an increase in silicon concentration by 1, up to 4.8%.
3. The third digit characterizes electromagnetic characteristics: coercive force, magnetic induction, etc.
4. The last two figures show the quantitative value of the characteristic from the third point.

Electrotechnical steel is a type of ferrous metal with improved electromagnetic properties. This can be achieved by introducing silicon. Thus, as a metal, electrotechnical steel is an alloy of iron with silicon, the content of which is 0.8 - 4.8%. Namely, this specific composition was obtained due to the area of its immediate application.

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