1250MM Non-Oriented Silicon Steel Coil JIS C2552 ASTM A677M EN10106 Electrical Steel

1．Product Overview

Non-oriented silicon steel coils are cold rolled electrical steel materials developed for motors, generators, compressors, transformers, and rotating electrical equipment. The material provides balanced magnetic properties in all directions and is suitable for applications requiring efficient magnetic flux performance and controlled core loss.

Grades including 35WW series and 50WW series are widely used for motor lamination production and energy-efficient electrical equipment manufacturing.

2．Technical Solution

Cold rolling and silicon alloy processing improve electrical resistivity and reduce hysteresis loss under alternating magnetic fields.

The insulation coating on the surface helps reduce eddy current loss between laminations during motor operation.

35WW series materials generally provide lower core loss and higher magnetic performance compared with higher loss grades such as 50WW1000 or 50WW1300.

Different grades are selected according to motor efficiency targets, operating frequency, and energy consumption requirements.

3．Specifications

4．Application

The material is widely used in industrial motors, electric motors, generators, compressors, fans, pumps, transformers, household appliances, and electrical lamination manufacturing.

Non-oriented silicon steel is suitable for rotating magnetic field applications requiring magnetic consistency in different directions.

5．Processing

• The coils support slitting, punching, lamination stamping, and motor core manufacturing.
• Stable thickness tolerance helps improve punching precision and reduce burr generation during lamination production.
• The coated surface improves insulation performance between laminations and supports high-speed motor manufacturing.

6．Advantages

• Cold rolled processing provides stable thickness control and smooth surface quality.
• Silicon alloy composition reduces core loss and improves magnetic efficiency.
• The insulation coating helps reduce eddy current loss between laminations.
• Multiple 35WW and 50WW grades support different efficiency and motor design requirements.
• 1250mm width is suitable for large lamination and motor core production.

7．How to Choose

• Choose 35WW230 or 35WW250 for higher efficiency and lower core loss applications.
• Choose 50WW600 to 50WW1300 for general industrial motor applications with standard efficiency requirements.
• Confirm motor speed, operating frequency, lamination design, and punching process before selecting material grade.
• For high-efficiency motors, lower core loss grades are generally preferred.

8．FAQ

Q1．What is non-oriented silicon steel
It is electrical steel with relatively uniform magnetic properties in all directions, mainly used for rotating electrical machinery.

Q2．What is the difference between 35WW and 50WW grades
35WW grades generally provide lower core loss and higher magnetic efficiency than 50WW grades.

Q3．What applications use non-oriented silicon steel
It is commonly used in motors, generators, compressors, transformers, and electrical equipment.

Q4．Can the coils be slit into smaller widths
Yes. Slitting and lamination processing services are available.

Q5．What standards are supported
The material can be supplied according to JIS C2552, ASTM A677M, EN10106, and GB/T2521 standards.