Cold Rolled Non-Grain Oriented (CRNGO) Silicon Steel
Welcome to Runfei Steel Group, your reliable steel processing and distribution partner since 1998. We supply premium CRNGO (Cold Rolled Non-Grain Oriented) silicon steel coils and sheets, the core material for manufacturing high-efficiency rotating electrical machinery. Featuring uniform magnetic properties in all directions and excellent stamping performance, our CRNGO electrical steel is widely used in electric motors, generators, and compressors. Browse our inventory below for quality-certified silicon steel solutions.
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Premium CRNGO Electrical Steel Supplier
As a comprehensive steel distribution enterprise established in 1998, Tianjin Runfei Trade Co., Ltd. provides top-tier electrical steel to the global market. Located in the Tianjin Hangu Industrial Park with a 170-acre facility, we offer an impressive 300,000 tons of annual processing capacity. Our Cold Rolled Non-Grain Oriented (CRNGO) silicon steel is sourced from leading mills and rigorously quality-checked, ensuring you receive materials that deliver superior magnetic performance and energy efficiency for your motor and generator manufacturing lines.
Why Choose Our CRNGO Silicon Steel?
Non-grain oriented electrical steel requires precise metallurgical control. Our CRNGO coils are manufactured to meet stringent international standards, offering exceptional benefits for electrical lamination stamping:
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Isotropic Magnetic Properties: Unlike CRGO, CRNGO steel delivers uniform magnetic permeability in all directions, making it the perfect soft magnetic material for rotating machines.
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Low Core Loss: Engineered to minimize hysteresis and eddy current losses, significantly improving the energy efficiency rating of electric motors.
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Excellent Punchability: Produced with strict thickness tolerances and high-quality insulating coatings to ensure smooth, continuous stamping and extended punching die life.
Core Applications in Electrical Manufacturing
Because of its multi-directional magnetic properties, CRNGO silicon steel is the foundational material for a wide variety of industrial and household applications, including:
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High-efficiency industrial AC/DC electric motors.
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Power generators and alternators.
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Compressors for HVAC systems and home appliances.
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Small to medium-sized electrical transformers and chokes.
Custom Slitting & Coil Processing Services
Beyond material supply, Runfei Steel is a fully equipped service center. We understand that motor lamination requires precise material widths. Using our advanced processing lines, we can accurately slit master CRNGO coils into narrow strips or cut them into specific sheet dimensions, reducing your production time and material waste.
Frequently Asked Questions (FAQ)
Q: What is the main difference between CRNGO and CRGO silicon steel?
A: CRNGO (Non-Grain Oriented) steel has uniform magnetic properties in all directions, making it ideal for rotating machinery like electric motors. CRGO (Grain Oriented) steel has magnetic properties optimized in one rolling direction, making it better suited for static equipment like power transformers.
Q: Can you provide narrow slit coils for high-speed stamping presses?
A: Yes. With our 300,000-ton annual processing capacity, we specialize in custom slitting. We can process wide CRNGO master coils into precisely dimensioned narrow strips tailored exactly for your high-speed motor lamination stamping lines prior to export.
Q: How do you package the steel to prevent rust during sea freight?
A: Electrical steel is highly sensitive to moisture and corrosion. We employ rigorous seaworthy packaging standards, utilizing VCI anti-rust paper, protective steel outer wrapping, and heavy-duty metal strapping. Shipping directly from Tianjin port, we ensure your steel arrives globally in pristine condition.
