Cold Rolled Oriented Electrical Steel Coil
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Gnee Steel (Tianjin) Co., Ltd. is one of the most professional cold rolled oriented electrical steel coil manufacturers and suppliers in China. Welcome to wholesale customized cold rolled oriented electrical steel coil at competitive price from our factory. Good service and quality products are available.
GNEE Steel Cold rolled oriented electrical steel
Cold-rolled electrical steel is also called silicon steel, As the name suggests, the electrician silicon steel is made by cold rolled with the silicon content ranged from 0.8％-4.8％. General thickness below 1mm, therefore calls the thin steel.
The cold rolling silicon steel is classified as the crystal grain non- oriented and the crystal grain oriented one. The crystal grain oriented cold rolling steel serves as the power transformer, large-scale generators and other equipment cores.
Properties of oriented electrical steel
|
Steel Grade |
Thickness Mm |
Theoretical Density Kg/Dm3 |
Tatal Iron Loss P1.7/50 W/Kg |
Magnetic Polarization B800 T |
|
30QG100 |
0.3 |
7.65 |
≤1.00 |
≥1.89 |
|
30QG105 |
0.3 |
7.65 |
≤1.05 |
≥1.89 |
|
30QG110 |
0.3 |
7.65 |
≤1.10 |
≥1.89 |
|
30QG120 |
0.3 |
7.65 |
≤1.20 |
≥1.89 |
|
30Q120 |
0.3 |
7.65 |
≤1.20 |
≥1.80 |
|
30Q130 |
0.3 |
7.65 |
≤1.30 |
≥1.80 |
|
30Q140 |
0.3 |
7.65 |
≤1.40 |
≥1.79 |
|
27QG100 |
0.27 |
7.65 |
≤1.00 |
≥1.89 |
|
27QG110 |
0.27 |
7.65 |
≤1.10 |
≥1.89 |
|
27QG120 |
0.27 |
7.65 |
≤1.20 |
≥1.89 |
|
27Q120 |
0.27 |
7.65 |
≤1.20 |
≥1.80 |
|
27Q130 |
0.27 |
7.65 |
≤1.30 |
≥1.79 |
|
27Q140 |
0.27 |
7.65 |
≤1.40 |
≥1.78 |
|
35Q135 |
0.35 |
7.65 |
≤1.35 |
≥1.80 |
|
35Q145 |
0.35 |
7.65 |
≤1.45 |
≥1.80 |
|
35Q155 |
0.35 |
7.65 |
≤1.55 |
≥1.78 |
Cold rolled grain oriented electrical steel
Cold Rolled Grain Oriented Steel Advantages
Grain-oriented electrical steel usually has a silicon level of 3% (Si:11Fe). It is processed in such a way that the optimal properties are developed in the rolling direction, due to a tight control (proposed by Norman P. Goss) of the crystal orientation relative to the sheet. The magnetic flux density is increased by 30% in the coil rolling direction, although its magnetic saturation is decreased by 5%. It is used for the cores of power and distribution transformers, cold-rolled grain-oriented steel is often abbreviated to CRGO.
CRGO is usually supplied by the producing mills in coil form and has to be cut into "laminations", which are then used to form a transformer core, which is an integral part of any transformer. Grain-oriented steel is used in large power and distribution transformers and in certain audio output transformers.
CRNGO is less expensive than CRGO. It is used when cost is more important than efficiency and for applications where the direction of magnetic flux is not constant, as in electric motors and generators with moving parts. It can be used when there is insufficient space to orient components to take advantage of the directional properties of grain-oriented electrical steel.
Oriented electrical steel package&shipping
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