Product Overview

Material Grades & Standards

1. Product Categories & Grades

• Non-Oriented Silicon Steel: Suitable for motors, generators, compressors and other rotating electrical equipment. Common grades: 50W470, 50W600, 65W800, 35W230 (low iron loss, uniform magnetic performance).
• Grain-Oriented Silicon Steel: Suitable for transformers, reactors and other static electrical equipment. Common grades: 23ZH100, 27ZH120, 30ZH130 (high magnetic permeability, ultra-low iron loss).

2. Execution Standards

• International Standards: ASTM A677, IEC 60404, JIS C2552, GB/T 2521 (Chinese National Standard).
• Material Features: Silicon content 0.5%–4.5%, precise control of chemical composition to ensure magnetic performance and processability.
• Certification: Provide complete material test reports (MTR) and quality certificates to ensure product traceability and compliance.

Main Product Types & Specifications

Product Forms

• Silicon Steel Coil: Continuous rolling coil, easy to cut and process, suitable for large-scale production of electrical components.
• Silicon Steel Sheet: Fixed-length sheets, available in different thicknesses and widths, convenient for direct use in small and medium-sized equipment.
• Silicon Steel Strip: Narrow strip products, suitable for precision stamping and small-size electrical parts.
• Custom Stamped Cores: EI cores, U-shaped cores, toroidal cores, customized according to customer drawings for transformers, inductors and motors.

Specifications

• Thickness: 0.10mm–0.50mm (common thickness: 0.20mm, 0.30mm, 0.35mm, 0.50mm), support custom thickness for special needs.
• Width: Coil width 800mm–1250mm, sheet width 500mm–1250mm, strip width 10mm–500mm (customizable).
• Length: Coil weight 1–15 tons, sheet length 1000mm–6000mm, support custom length and cutting size.
• Surface Coating: Insulation coating (organic/inorganic), ensuring electrical insulation and reducing eddy current loss.

Surface Treatment & Processing

1. Surface Treatment

• Insulation Coating: Organic coating, inorganic coating (ceramic coating), with good adhesion, high insulation performance and heat resistance, preventing eddy current loss and corrosion.
• Annealing Treatment: Professional recrystallization annealing, eliminating internal stress, improving magnetic permeability and reducing iron loss, ensuring stable product performance.
• Surface Polishing: Optional polishing treatment for high-precision electrical components, ensuring smooth surface and uniform thickness.

2. Processing Services

• Cutting: Precision slitting, shearing, cutting into fixed-size sheets or strips according to customer requirements.
• Stamping: Custom stamping of EI cores, U cores, toroidal cores and other shapes, with high precision and good dimensional consistency.
• Laminating: Laminating processing for transformer cores, improving magnetic performance and reducing energy loss.

Product Advantages

• Excellent Magnetic Performance: Low iron loss, high magnetic permeability, strong magnetic induction, effectively reducing energy consumption of electrical equipment.
• Good Electrical Insulation: High-quality insulation coating, preventing eddy current loss, ensuring safe and stable operation of equipment.
• Stable Performance: Precise control of silicon content and processing technology, uniform material, no deformation, stable magnetic performance under long-term use.
• Good Processability: Easy to cut, stamp, laminate and weld, suitable for various processing methods and custom production.
• Energy-Saving & Environment-Friendly: Low iron loss helps reduce energy consumption of electrical equipment, in line with global energy-saving and environmental protection requirements.
• Reliable Quality: Strict raw material inspection and full-process production monitoring, complying with international standards, widely recognized in the electrical industry.

Application Fields

• Power Transformers: Power transformers, distribution transformers, dry-type transformers (core components, reducing energy loss).
• Electrical Motors & Generators: AC motors, DC motors, generators, compressors, fans (rotor and stator cores).
• Electrical Appliances: Refrigerators, air conditioners, washing machines, microwave ovens (motor cores and inductors).
• Power Electronics: Inductors, chokes, voltage regulators, frequency converters (magnetic core components).
• Other Fields: Power transmission equipment, electrical control cabinets, new energy equipment (solar, wind power) and precision electrical components.

Quality Control

• Raw Material Inspection: Strictly detect the chemical composition (silicon content, impurity content) and physical properties of raw materials to ensure they meet product requirements.
• Production Process Control: Real-time monitoring of rolling, annealing, coating and other processes, strictly controlling thickness, flatness and coating quality.
• Performance Testing: Conduct magnetic performance testing (iron loss, magnetic permeability), electrical insulation testing and dimensional accuracy testing for finished products.
• Finished Product Inspection: Comprehensive inspection of product appearance, surface coating, size and performance, eliminating unqualified products before delivery.
• Certification & Documentation: Provide complete quality certificates, material test reports and inspection records to ensure product traceability and compliance.