Cold Rolled Non-oriented Silicon Steel For Magnetic Switch
Oct 10, 2025
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Cold Rolled Non-oriented Silicon Steel Product Description
Non-oriented silicon steel is used in rotating equipment such as motors. It is divided into iron core and rotor. In order to be easily magnetized during the rotation process, electrical energy is converted into mechanical energy.
Therefore, it is required to be easily magnetized at every angle in the rotation process, so the grain orientation distribution in the non-oriented silicon steel is required to be uniform.
Composition:
A ferro-silicon alloy with very low carbon content and 1.5%-3.0% silicon (or silicon and aluminum).
Processing:
It undergoes a cold rolling process, resulting in random grain distribution rather than a preferred direction.
Properties:
Features uniform magnetic properties in all directions, low core loss, good thermal stability, and high electrical resistance.
Why is it used for magnetic switches?
- Magnetic Isotropy:
Its random grain orientation ensures that magnetic fields are responded to consistently in any direction, which is crucial for the reliable operation of an electromagnetic switch.
- Performance:
The low core loss and high permeability of this steel reduce energy waste and improve the efficiency of magnetic components within the switch.
- Material Strength:
Cold-rolled grades are also known for their ability to withstand strong electromechanical forces, which is important for components in electrical devices that experience significant mechanical stress.
Cold Rolled Non-oriented Silicon Steel Key Applications:
- Electromagnetic Switches: The uniform magnetic properties make it well-suited for the core of these devices.
- Motors and Generators: Its magnetic isotropy is beneficial for rotating machinery where magnetic flux paths are multidirectional.
- Other Applications: Also used in measuring instrument transformers and magnetic amplifiers.
Electrical Steel specifications
| Category |
Silicon Content/% |
Nominal Thickness/Mm |
Lord To Use Way |
||
|
Hot Rolled Silicon Steel (No Orientation) |
Hot rolled low silicon steel(Motor Steel) |
1.0~2.5 |
0.5 |
Household motors and micromotors |
|
|
Hot rolled high silicon steel(Transformer steel) |
3.0~4.5 |
0.35,0.50 |
Transformer |
||
|
Cold Rolled Electrical Steel |
Cold rolled non-oriented electrical steel(Motor Steel) |
Low carbon electrical steel |
≤ 0.5 |
0.50,0.65 |
Small transformers and ballasts for household motors, micromotors |
|
Silicon steel |
>0.5~3.5 |
0.35,0.50 |
Medium and large motors, generators and transformers |
||
|
Cold rolled grain oriented silicon steel(Transformer steel) |
Ordinary oriented silicon steel |
2.9~3.3 |
0.18,0.23,0.27 |
Large, medium and small transformers and ballasts |
|
|
High magnetic induction oriented silicon steel |
|||||
|
Special Purpose Silicon Steel |
Cold rolled grain oriented silicon steel strip |
2.9~3.3 |
0.03,0.05,0.10 |
Pulse transformer, magnetic amplifier, high frequency transformer and electric welding machine |
|
|
Cold rolled non-oriented silicon steel strip |
3.0 |
0.15,0.20 |
High-frequency motors and generators |
||
|
Cold rolled non-oriented silicon steel for magnetic switch |
3.0 |
0.70 |
Relays and magnetic switches |
||
|
Cold rolled high silicon steel |
6.5 |
0.1~0.5 |
High-frequency motors, transformers and magnetic shielding |
||
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