Cold-rolled non-oriented silicon steel is an electrical steel material with excellent electromagnetic properties. Its grain orientation is randomly distributed, so the magnetic properties in different directions are relatively uniform. According to the product use and performance indicators, it can be divided into ordinary non-oriented silicon steel and high magnetic induction non-oriented silicon steel. The former is mainly used for small and medium-sized motors and electrical appliances, while the latter is suitable for high-efficiency motors, compressors and other scenes with higher requirements for magnetic properties.

Product Parameters

Key parameters and specifications of cold-rolled non-oriented silicon steel

1. Thickness range: Common specifications include 0.23mm, 0.25mm, 0.27mm, 0.3mm, 0.5mm, etc. Some products can cover the range of 0.2-1.0mm.

2. Brand representation: such as 50W600, 50WW1000, etc., where the number before "W" represents the iron loss value (unit: W/kg), and the number after "W" represents the magnetic induction intensity (unit: T). The lower the value, the better the performance.

3. Chemical composition: The silicon content is usually controlled at 2.9%-3.4%. Some high-grade products optimize magnetic properties by adjusting the proportion of silicon, aluminum and other elements.

Core application scenarios:

Transformer core, motor stator/rotor

Relays, electric welding machines and other electrical equipment

New energy vehicle drive motors, compressors

Processing service support: Suppliers can provide customized processing such as cutting, welding, and striping to meet the precise requirements of different equipment for silicon steel sheet size.

Factors affecting the performance of cold-rolled non-oriented silicon steel

1. Hot rolling process: Parameters such as rolling temperature and reduction rate directly affect the grain structure and magnetic properties of the finished product. For example, for 50W600 grade silicon steel, optimizing the hot rolling process can reduce iron loss.

2. Micro inclusions: Calcium treatment and other processes can reduce the number of inclusions and control their size distribution, thereby improving the magnetic permeability and toughness of the material.

3. Annealing treatment: The temperature curve and atmosphere control during continuous annealing are crucial to eliminating internal stress and refining grains.

Market supply and product advantages

Main suppliers: Chinese factories are the core supply source, and the products cover two categories: CRGO (cold-rolled oriented silicon steel) and CRNGO (cold-rolled non-oriented silicon steel), supporting wholesale and customized orders.

Competitive advantages: It has high magnetic permeability and low iron loss characteristics, and provides a combination of "thin specifications (such as 0.23mm) + high-precision processing", which is suitable for the manufacture of high-efficiency and energy-saving equipment