Electrical steel (E-steel, lamination steel, silicon electrical steel, silicon steel, relay steel, transformer steel) is speciality steel used in the cores of electromagnetic devices such as motors, generators, and transformers because it reduces power loss. It is an iron alloy with silicon as the main additive element (instead of carbon). The exact formulation is tailored to produce specific magnetic properties: small hysteresis area resulting in low power loss per cycle, low core loss, and high permeability.
Grain Oriented Electrical Steel, as the name suggests, is a type of electrical steel known for its controlled grain orientation. During the manufacturing process, the steel is carefully annealed and rolled to induce anisotropy, aligning the crystal grains in a specific direction. This grain alignment allows GOES to exhibit superior magnetic properties in the direction of rolling, resulting in reduced core losses and enhanced magnetic flux density. The unique magnetic anisotropy of GOES makes it an ideal choice for high-performance electrical transformers and other power distribution applications.
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item |
value |
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Type |
Oriented Silicon Steel |
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Technique |
Cold Rolled |
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Thickness |
0.18mm - 0.3mm |
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Surface Treatment |
Coated |
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Shape |
Steel Coil |
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Standard |
AiSi |
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Place of Origin |
China |
|
Henan |
|
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Tolerance |
±1% |
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Processing Service |
Bending, Cutting, stamping |
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Delivery Time |
7-45 days |
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Material |
Ferrosilicon soft magnetic alloy |
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Brand Name |
GNEE Steel |
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Application |
Transformer Core |
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Package |
Standard Seaworth Packing |
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Color |
Silver Gray |
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Feature |
High and Reliable quality |
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MOQ |
5 tons |
Oriented Electrical Steel
Features and Properties of Grain Oriented Electrical Steel
1. Crystal Orientation: Unlike non-oriented electrical steel, which has random grain orientation, grain-oriented electrical steel is produced in a way that aligns the crystal grains in a specific direction. This orientation enhances the magnetic properties along the rolling direction of the material.
2. High Magnetic Permeability: The aligned crystal structure of GOES results in high magnetic permeability, making it ideal for applications where magnetic flux needs to flow predominantly in one direction.
3. Low Core Loss: Grain-oriented electrical steel is designed to have minimal core losses, reducing energy dissipation due to hysteresis and eddy currents when subjected to alternating magnetic fields. This property increases the overall efficiency of transformers and other electrical machines.
4. Applications: The primary application of grain oriented electrical steel is in the production of power transformers for electricity distribution and transmission. Transformers made from GOES are more efficient and have lower losses compared to those made from other types of electrical steel.
5. Production Process: The manufacturing process of GOES involves carefully controlling the cooling rate during annealing after rolling to achieve the desired crystal orientation. This specialized process allows the material to attain its excellent magnetic properties.
Due to its specific grain orientation, grain-oriented electrical steel is generally more expensive than non-oriented electrical steel. However, its high efficiency and superior performance in power transformers justify its use in critical electrical infrastructure, contributing to the reliable distribution and transmission of electricity in modern power systems.
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