China Cold Rolled Non-Grain Oriented 50A800 Electric Silicon Steel Sheet Coil Manufacturer and Supplier | Ruiyi

Silicon steel contains 1.0-4.5% silicon and silicon alloy steel with a carbon content of less than 0.08% is called silicon steel. It has the characteristics of high magnetic permeability, low coercivity, and large resistivity, so hysteresis loss and eddy current loss are small. Mainly used as magnetic materials in motors, transformers, electrical appliances and electrical instruments。

Silicon steel, also called “electrical steel”, is a silicon-iron soft magnetic alloy with extremely low carbon content. The addition of silicon can not only increase the resistivity and maximum magnetic permeability of iron, but also reduce core loss (iron loss), coercive force, and magnetic aging. It is generally used in the iron cores of various motors and transformers, and is an indispensable and important soft magnetic alloy in the power, electronics and military industries.

Silicon steel is a soft magnetic material that is used in electrical power transformers, motors and generators. It has a high silicon content of about 3.2 mass %, which increases the electrical resistivity of iron and, therefore, reduces eddy current losses.

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

Non-Grain Oriented Silicon Electrical Steel, also known as Grain Non-Oriented Silicon Electrical Steel(CRNGO), featured by random distribution of grain orientation and magnetic isotropy, is widely applicable to the motor industry.
Grade: 35W300, 35A300, M27, GR300, M300-35A, 50W800, 50A800, 47F475， M800-50A

Thickness: 0.35mm, 0.50mm and 0.65mm are the most common thicknesses (0.15mm-0.85mm)

Width : 950mm-1250mm or slit to a required width

Electrical steel is mainly divided into GO electrical steel and NGO electrical steel two categories.Easy magnetization direction of GO electrical steel distribution along the rolling direction, the direction of rolling with high induction, excellent characteristics such as low iron loss and low magnetostriction, while the magnetic domain refinement processing technology, lower iron loss of performance, and are widely used in the transformer industry.

Product Description:

1.Grain-Oriented Electrical Steel

• Thickness:0.23mm,0.27mm,0.30mm,0.35mm
• Width: 900-1200mm
• Inner Diameter: 508mm

2.Non-Oriented Electrical Steel

• Thickness:0.20mm,0.35mm,0.50mm,0.65mm
• Width: 800-1250mm
• Inner Diameter: 508mm

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Cold Rolled Non-Grain Oriented Electric Silicon Steel B50A800

Specifications

1. Grades: B50A800
2. Thickness: 0.5mm

3. Width: 1200mm
4. Inner Diameter: 508mm
5. Weight of Steel Coil: 3-8MT

Parameters

1. Density: 7.8kg/dm3
2. Iron Loss: 5.68W/Kg (f=50Hz B=1.5T)
3. Magnetic Flux Strength: 1.73T (f=50Hz H=5000A/M)
4. Interlayer Resistance: >10Ω.cm2/piece

5. Yield Strength: 237MPa
6. Tensile Strength: 385MPa
7. Extended Length 38% (380MPa)
8. HV1 Hardness: 127
8. Lamination Factor: 97%
9. Minimum number of Bends: 10Times

The difference between non-oriented silicon steel and oriented silicon steel

The grains of grain-oriented silicon steel basically face one direction, and the silicon content is relatively high. It is mainly used in the manufacture of transformers. The grain distribution of non-oriented silicon steel is disorderly, the silicon content is low, and it is mainly used in motor manufacturing. The silicon content is generally bounded by 3%; cold-rolled silicon steel is divided into cold-rolled non-oriented silicon steel and cold-rolled oriented silicon steel.

(1) The production process requirements of cold-rolled non-oriented silicon steel are relatively low, and the silicon mass fraction is between 0.5% and 3.0%. The finished product thickness after cold rolling is generally 0.35 and 0.5mm thick steel strip. Its Bs is higher than that of grain-oriented silicon steel, with uniform thickness, high dimensional accuracy, smooth and flat surface, which improves the filling factor and the magnetic properties of the material.

(2) The silicon mass fraction of cold-rolled oriented silicon steel is above 3.0%, and the carbon mass fraction is 0.03%-0.05%. Steels are low in oxide inclusions and require inhibitors. Compared with cold-rolled non-oriented silicon steel, oriented silicon steel has lower loss, strong magnetic directionality, and superior high magnetic permeability and low loss characteristics in its rolling direction. Cold-rolled grain-oriented silicon steel, also known as cold-rolled transformer silicon steel, is mainly used in transformer manufacturing.

(3) Cold-rolled grain-oriented silicon steel can also be divided into two types: common grain-oriented silicon steel (CGO) and high magnetic induction grain-oriented silicon steel (Hi-B). High magnetic induction cold-rolled grain-oriented silicon steel is single-oriented steel strip, which is mainly used to manufacture various electromagnetic components such as choke coils and transformers in electronic instruments.

Application scenarios of silicon steel

(1) Non-oriented silicon steel

①Large electromechanical: water, thermal and nuclear power units: above 30-50W290; wind turbines: above 30-35W360

②Household appliances: high-efficiency inverter air conditioner compressor: 30-50W360 or above; high-efficiency inverter refrigerator compressor: 30-35W360 above

③ Small and medium-sized electromechanical: Y1, Y2, Y3 series and derivative series products: low grade; high efficiency, super high efficiency: above 30-35W470

④ New energy vehicles: drive motor: 30-35-50W350 or above; new energy vehicle micro motor: 20-35W360 or above

(2) Oriented silicon steel

Transformers: high-end transformers: 750KV, 1000KV; medium and low-end transformers: 220-500KV, 110-200KV, less than 110KV; various grades of energy-saving transformers: 0.18-30mm