Non Oriented Silicon Steel Coil

Description

Non oriented silicon steel coil is a low-carbon ferrosilicon alloy. In the deformed and annealed steel sheet, its grains exhibit a random orientation distribution. The silicon content of the alloy is 1.5%–3.0%, or the combined silicon and aluminum content is 1.8%–4.0%.

Non oriented silicon steel coil products are typically cold-rolled sheets or strips with nominal thicknesses of 0.35 and 0.5 mm, primarily used in the manufacture of electric motors and generators.

Distinguished from Grain Oriented Silicon Steel Coil, which is specifically used for transformer cores (especially power transformers and distribution transformers) due to its optimal magnetic properties in a single direction, suitable for static magnetic fields, Non-Oriented Silicon Steel Coil is widely used in rotating equipment such as motors, generators, compressors, and drive motors for new energy vehicles, requiring multi-directional magnetization.

Characteristics of non oriented silicon steel coil:

1. Random grain distribution: The internal grains of non oriented silicon steel coil are randomly distributed, resulting in magnetic properties that are similar in the rolling and transverse directions, making it suitable for stators and rotors of rotating electric machines.

2. Low iron loss: Non oriented silicon steel coil exhibits low energy loss in alternating magnetic fields, especially high-grade products where iron loss can be below 9 W/kg (400 Hz), significantly improving motor efficiency.

3. High magnetic flux density: Magnetic polarization intensity can reach 1.66–1.75 T, which helps improve the power density of motors.

4. Thin profiles: The mainstream thicknesses of Non Oriented Silicon Steel Coil are 0.35 mm and 0.50 mm, with ultra-thin profiles of 0.20 mm, 0.25 mm, and even 0.10 mm also available in mass production, meeting the needs of high-speed, miniaturized motors.

5. Good stamping properties and stacking coefficient: The smooth surface and uniform thickness facilitate stamping into precision iron core stacks, improving material utilization.

6. Moderate silicon content in Non Oriented Silicon Steel Coil: Typically 0.5%–3.0% (some can reach 3.5%), balancing magnetic properties and machinability.

Applications of Non Oriented Silicon Steel Coil:

1. New energy vehicle drive motors: Mainstream application; high-grade, ultra-thin silicon steel can improve range and power performance.

2. Industrial Motors: Covering large, medium, small, and micro motors, forming the foundation of industrial power.

3. Home Appliances: Used in air conditioners, refrigerator compressors, washing machine motors, microwave oven transformers, etc.

4. Emerging High-End Fields:

– Humanoid Robot Joint Motors: Requires ultra-high magnetic flux density (e.g., 1.75 T) and high torque density.

– Low-Altitude Aircraft (eVTOL): Requires high speed, high efficiency, and lightweight design.

– High-Efficiency Energy-Saving Motors: Meets international energy efficiency standards such as YE4/YE5.

– Power Generation Equipment: Includes cores for large generators in wind power, hydropower, and nuclear power plants.

Development Trends of Non Oriented Silicon Steel Coil:

1. Development towards “high grade, thinner specifications, lower iron loss, and higher magnetic flux density”; 0.1 mm ultra-thin material has achieved mass production.

2. Dedicated production lines are being built at an accelerated pace.

Specifications of Silicon Steel Coil:

​

​

Standards and Classifications

​Product Display

Packing & Delivery

Shipping By Sea

1. Standard packaging
2. Packaging according to customer requirements