Silicon Steel
Our goal is to become your true partner in the field of silicon steel in China. GNEE is a professional supplier of austenitic stainless steel, super austenitic stainless steel, duplex steel, super duplex steel and other materials. Non-standard products can be customized according to customer requirements. We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards.The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.
Why Choose Us
Our certification
GNEE Steel (Tianjin) Co., Ltd. has passed SGS certification and has successively obtained ISO9001, ISO14001, and ISO45001 system certifications.
Our equipment
At present, our company has a series of production equipment such as vacuum induction furnaces imported from the United States, vacuum consumable arc furnaces made in Germany, 2800mm four-roll reversible rolling mills, and vacuum annealing furnaces. At the same time, we also have more than 100 sets of various testing instruments, the main equipment includes American non-destructive testing systems, spectrometers, carbon and sulfur testers, universal testing machines, ultrasonic testing systems, fatigue testing machines, etc.
Our services
In the pre-sales stage, our team of experts will recommend the most suitable products according to the needs of customers and provide detailed technical consultation. During the sales period, we ensure timely delivery and provide installation guidance. For after-sales, we provide long-term technical support, warranty services and spare parts to help customers maximize the use of products and get reliable maintenance during use.
Advantages of Silicon Steel
Low loss and high permeability: A notable feature of silicon steels is its low loss and high magnetic permeability. This is due to the reduction of tiny magnetic domain wall losses between the oriented and non-oriented silicon steelss and the optimization of the size and shape of silicon grains.
Reduce eddy current loss: Eddy current losses are generated in an alternating magnetic field, which leads to current consumption and heat generation. Silicon steelss reduce eddy current losses by introducing silicon particles into the material. Silicon’s high resistivity reduces the intensity of eddy currents, thereby reducing energy loss and heat generation.
Suppression of magnetic saturation and noise: The high saturation magnetic induction of silicon steels enables it to withstand high magnetic flux density without saturation. By suppressing magnetic saturation, silicon steelss are able to reduce magnetic field fluctuations in transformers and motors, thereby reducing noise and mechanical vibration.
Environmental protection and sustainability: The production process of silicon steelss is relatively environmentally friendly. Compared with ordinary steel, the manufacturing process of silicon steels involves less energy consumption and resource consumption.
Specification of Silicon Steel
|
Thickness |
Trademark |
Theoretical density (Kg/dm2) |
Iron loss(W/Kg ) |
Magnetic induction (T) |
||||
|
50Hz |
60Hz |
|||||||
|
1.0T |
1.5T |
1.0T |
1.5T |
2500A /m |
5000A /m |
|||
|
0.35 |
35W250 |
7.60 |
0.91 |
2.26 |
1.15 |
2.85 |
1.58 |
1.67 |
|
35W270 |
1.00 |
2.40 |
1.26 |
3.05 |
1.58 |
1.67 |
||
|
35W300 |
7.65 |
1.12 |
2.65 |
1.40 |
3.30 |
1.58 |
1.67 |
|
|
35W360 |
1.24 |
2.75 |
1.54 |
3.40 |
1.59 |
1.68 |
||
|
35W400 |
1.40 |
3.18 |
1.75 |
3.95 |
1.59 |
1.67 |
||
|
35W440 |
7.70 |
1.70 |
3.75 |
2.10 |
4.70 |
1.58 |
1.67 |
|
|
0.50 |
50W270 |
7.60 |
0.98 |
2.40 |
1.27 |
3.05 |
1.58 |
1.67 |
|
50W290 |
1.10 |
2.60 |
1.43 |
3.35 |
1.58 |
1.67 |
||
|
50W310 |
7.65 |
1.22 |
2.83 |
1.57 |
3.60 |
1.58 |
1.67 |
|
|
50W350 |
1.26 |
2.91 |
1.60 |
3.70 |
1.58 |
1.67 |
||
|
50W400 |
1.45 |
3.30 |
1.83 |
4.15 |
1.59 |
1.67 |
||
|
50W470 |
7.70 |
1.63 |
3.57 |
2.05 |
4.50 |
1.59 |
1.67 |
|
|
50W600 |
7.75 |
1.90 |
4.20 |
2.40 |
5.25 |
1.59 |
1.68 |
|
Resistivity: In comparison to iron, silicon steel shows a significant increase in resistivity. This increase reduces core loss by minimizing the eddy current component, hence improving energy efficiency.
Saturation induction: The degree to which silicon steel can be magnetized, or its saturation induction, is another vital property. The higher the silicon content, the lower the saturation induction. It’s a balancing act between maintaining high resistivity and ensuring adequate saturation induction.
Magneto-crystalline anisotropy and magnetostriction: These properties influence how the material behaves under the influence of magnetic fields and mechanical stress, respectively. While increasing silicon content lowers magnetostriction, the processing becomes more challenging.
Curie temperature: The curie temperature, which is quite high for iron, can be reduced by alloying elements. However, the decrease doesn’t significantly impact silicon steel users.
Types of Silicon Steel
Silicon steel can be divided into hot rolled silicon steel and cold rolled silicon steel. Hot-rolled silicon steel is gradually eliminated due to its low availability and large energy loss. Cold-rolled silicon steel is the focus of future development due to its high technical content and low loss.Cold-rolled silicon steel is divided into: cold-rolled oriented silicon steel and cold-rolled non-oriented silicon steel.
Application of Silicon Steel
Transformer
Silicon steels is used to make the iron core of the transformer. Their low losses and high magnetic permeability allow transformers to transmit and convert electrical energy efficiently.
Generators and motors
As the core material of motors and generators, silicon steelss can provide efficient power conversion and output capabilities.
Magnetic sensor
The excellent magnetic permeability of silicon steels makes it an ideal material for magnetic sensor and magnetic field detector.
Electric vehicles
Silicon steelss play an important role in the drive system of electric vehicles, reducing energy loss and increasing battery life.
Production process: Cold-rolled silicon steel is produced by cold rolling a hot-rolled coil of steel, while hot rolled silicon steel is produced by hot rolling a slab of steel.
Grain orientation: Cold-rolled silicon steel has a preferred crystallographic orientation, with the grains aligned in the rolling direction, while hot rolled silicon steel has a random orientation.
Magnetic properties: Cold-rolled silicon steel has higher magnetic permeability and lower core loss than hot rolled silicon steel, due to its preferred crystallographic orientation and fine grain size.
Cost: Cold-rolled silicon steel is more expensive than hot rolled silicon steel, due to the additional processing steps and higher quality.
Applications: Cold-rolled silicon steel is used in high-performance electrical and electronic devices where low core loss and high magnetic permeability are critical, such as power transformers, electric motors, and generators. Hot rolled silicon steel is used in less demanding applications where lower cost is more important, such as magnetic shielding, clutches, and bearings.
Production Process of Silicon Steel
Silicon steels do not use a secondary recrystallization process to develop their properties, and high temperature annealing is not essential. Therefore, a lower limit on silicon, such as is required for the oriented grades, is not essential.
Non-oriented grades contain between 0.5 and 3.25% si plus up to 0.5% al, added to increase resistivity and lower the temperature of primary recrystallization. Grain growth is very desirable in the nonoriented grades, but is generally much smaller than for the oriented grades.
Processing to hot rolled band is similar to that described for the oriented grade. After surface conditioning, the bands are usually cold rolled directly to final gage, and sold to the transformer manufacturer in one of two conditions - fully-processed, or semi processed. After final cold rolling, the strip is annealed, decarburizing it to 0.005% c or lower and developing the grain structure needed for the magnetic properties. Samples are then taken from each coil end, and tested.
Packing and Shipping of Silicon Steel
|
Packing |
Waterproof paper and steel strap packaging |
|
Shipping |
Shipped by road, sea, rail |
Other Service of Silicon Steel
|
Delivery Time |
20 days to 25 days for a 20' container |
|
Payment |
TT in advance, L/C at sight |
|
MOQ |
5000kg |
|
Inspection |
We can accept the third party's inspection |
FAQ