The Role Of Electrical Steel Sheet Resistivity
Oct 20, 2025
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Electrical Steel Sheet
As a key indicator of the electrical performance of electrical steel sheets, resistivity influences both the loss of power equipment and the equipment's operating efficiency and performance. Therefore, when manufacturing power equipment, it is necessary to select the appropriate type of electrical steel sheet and its resistivity based on specific requirements and operating environments to ensure the equipment's performance and stability.
The Role of Electrical Steel Sheet Resistivity
Electrical steel sheets are metallic materials with low loss and high magnetic conductivity, and they are among the key materials for manufacturing high-efficiency power equipment. Resistivity is one of the critical indicators for measuring the electrical performance of electrical steel sheets.
The higher the resistivity, the greater the resistance to current flow in the electrical steel sheet, and the higher the electrical energy consumption. Therefore, the resistivity of electrical steel sheets can affect the loss of power equipment, as well as the equipment's operating efficiency and performance.
Application of Electrical Steel Sheet Resistivity in Power Equipment
In power equipment, electrical steel sheets are mainly used for the cores of motors and power transformers, where their functions are to conduct magnetic fields and store energy. The resistivity of electrical steel sheets has a significant impact on motor loss and efficiency:
When a motor is energized, a magnetic field is generated in the core, and electrical steel sheets conduct this magnetic field effectively. During this process, current flows through the electrical steel sheets, generating heat and causing additional losses.
Therefore, using electrical steel sheets with lower resistivity to manufacture motors can reduce such additional losses and improve motor efficiency.
Similarly, the resistivity of electrical steel sheets in power transformers also affects transformer loss and efficiency. Using electrical steel sheets with lower resistivity to manufacture transformers can reduce transformer losses and enhance transformer efficiency.
electrical steel specifications
Raw Material: Our premium CRGO silicon steel is sourced exclusively from renowned manufacturers, Baosteel and WISCO, ensuring top-tier quality for your transformer core laminations.
GRADE we supply:B30P120, B30P105, B30R100, 27QG120, 27QG100, 23Q110, 23QG100, 23QG095, 23RK090, 23RK085, 23QG085, 23RK085, 23QG085, 23RK080, 23RK075, B23R070, 20QG085, 20RK080, 20RK075, B20R070, B20R065,M0H,M1H,M2,M3,M4,M5.
23HP75d, 23HP80d, 23HP85d, 23HP90d, 23HP95d, 23HP100, 23HP100d, 27HP100, 27HP110, 27CG110, 27CG120, 30CG120, 30CG130
| Type | Grade | Width | Max Core Loss@P1.7T/50Hz | Lamination Factor(%) | Min Induction@B800 |
| Common Type | 23Q110 | 35-1200mm | 1.10w/kg | 97.2 | 1.82T |
| 23Q120 | 1.20w/kg | 97.2 | 1.82T | ||
| 27Q120 | 1.20w/kg | 97.5 | 1.82T | ||
| 30G120 | 1.20w/kg | 98 | 1.82T | ||
| High Induction Type |
B20P085 | 35-1200mm | 0.85w/kg | 97 | 1.86T |
| B23P085 | 0.85w/kg | 97.2 | 1.88T | ||
| B23P090 | 0.90w/kg | 97.2 | 1.88T | ||
| B23P095 | 0.95w/kg | 97.2 | 1.88T | ||
| B23P100 | 1.00w/kg | 97.2 | 1.88T | ||
| B27P095 | 0.95w/kg | 97.5 | 1.89T | ||
| 27QG100 | 1.00w/kg | 97.5 | 1.89T | ||
| B30P105 | 1.05w/kg | 98 | 1.89T | ||
| Domain Refined High Induction Type(Laser) |
B20R070 | 35-1200mm | 0.70w/kg | 97 | 1.86T |
| B23R085 | 0.85w/kg | 97.2 | 1.88T | ||
| B27RK085 | 0.85w/kg | 97.5 | 1.89T |
We meticulously calculate and regularly update quotations based on your comprehensive drawings, ensuring precision and cost-effectiveness in every transaction.
Upon receiving your confirmation, we seamlessly transition into production, adhering stringently to the meticulously detailed drawings you provide to ensure flawless execution.
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GNEE EC
Founded in 2008 and located in Anyang in China, Gnee Electric is a high-tech enterprise specializing in researching and manufacturing iron core products.
The company currently occupies over 20,000 square meters and employs more than 200 people, including over 80 professionals. After more than 18 years of development, we have built our own magnetic material production base and independently develope, produce, and sell various kinds of iron cores. The common types include silicon steel cores, motor cores, transformer cores, toroidal iron cores, special-shaped cores, custom cores, and others. Our cores are widely applied in different sectors including transformers, motors, mutual inductors, voltage stabilizers, welding machines, magnetic amplifiers, and instrumentation, providing diverse core solutions to global customers.
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GNEE EC was founded in 2008, which is a National High-tech Enterprise & Famous Brand Enterprise in China, developing into a professional manufacturer and supplier of high-quality iron cores.
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Over 18 years of success in the iron core industry;
National High-tech Enterprise & Famous Brand Enterprises in China;
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Over 200 employees;
The R&D team has more than 80 experienced engineers and the production team has more than 100 skilled staffs;
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With 18 Years of industry experience, we focus on the research, development, and manufacturing of high-quality iron cores for electricity, industrial control, new energy, and automotive markets