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Cold Rolled Electrical Sheet

Cold Rolled Electrical Sheet
Cold Rolled Electrical Sheet
Product Code : 02
Product Description
General Introduction of Cold-rolled Electrical Steel

At present, WISCO has a 1.90 million tons annual capacity on cold-rolled electrical steel, among which oriented electrical steel occupies 0.55 million (including 0.25 million tons of high permeability grain-oriented steel, 0.30 million tons of conventional oriented electrical steel), 1.35 million tons of non-oriented electrical steel.

Characteristics of Cold-rolled Electrical Steel

  • Magnetic Property :Low core loss and high permeability, especially for HIB
  • ShapeTransverse and longitudinal thickness differences are small. The lamination or stacking factors are remarkably good.

Coating

A variety of surface insulations are available to choose. The smooth, tightly adherent coating which has passed the certification of REACH and RoHs provides high levels of insulation resistance, processability, as well as protection against high temperature and rusting.

Good Processing Performance

The material is suitable for cut and/or punch. The users ensuring the accurate working and correct tools are able to acquire laminations with good geometrical properties after stamping.

Surface Condition

The surfaces shall be smooth an Insulationd clean. There are no defects which will affect the further use of the supplied materials, such as rusts, roller marks, holes, double skin, fold marks, blisters, laminations, etc.

Characteristics of Surface Insulation Coating

Type

Oriented Electrical Steel

Non-oriented Electrical Steel

Coating Type

T2

T4

Composition

Inorganic

Semi-organic

Coating Thickness μm

2-4

0.8-2

Inter layer Resistance Ω.cm2/pc

30

5

Adhesion

B-F Level

A-B Level

Punching Performance

Good

Good

Rust Resistance

Good

Good

Heat Resistance

It is able to withstand 800℃ relief annealing in non-oxidizing atmosphere

It is able to withstand 750℃ relief annealing in non-oxidizing atmosphere

Corrosion Resistance

With a high corrosion resistance to insulating paint, machine oil and refrigerating media

Remarks: Some of the new coatings are not included here and can be supplied as per users’ requirements.


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