Customized 0.15mm/0.18mm CRGO Grain Oriented Electrical Silicon Steel Coils for High Efficiency Transformer Core Slitting

• Customization: Available
• Type: Oriented Silicon Steel
• Standard: GB, AISI, ASTM, DIN, BS, JIS
• Model NO.: 23SQGD080 (0.20mm-0.23mm)
• Technique: Cold Rolled
• Shape: Coil
• ID: 508mm
• Nominal Thickness: 0.15-0.30
• Annealing Temperature: 820±20℃
• Annealing Time: 1.5 to 2.5 Hours
• The Rate of Heating and Cooling: Rapid Heating or Cooling Should Be Forbidden
• Annealing Atmosphere: Nitriding and Oxidation Atmosphere Must Be Avoided
• Nominal Width: 900~1200mm
• Weight: 2~5t
• Available Grades: 20sqgd070, 20sqgd075, 23sqgd080, 23sqgd085
• Transport Package: Standard Sea-Worthy with Eye-to-Sky or Eye-to-Wall
• Specification: 0.18mm - 0.35mm CRGO Steel Coil & Strip
• Trademark: YAHE STEEL
• Origin: China
• HS Code: 7226110000
• Production Capacity: 15000 Metric Ton Per Month

Product Description

Welcome to YAHE STEEL

YAHE STEEL is a premier global supplier specializing in high-quality Cold Rolled Grain Oriented (CRGO) Electrical Steel Coils and Strips. Backed by premium material sources from leading steel mills like Shougang, we deliver high-magnetic-permeability, low-core-loss silicon steel tailored for high-efficiency transformers and electrical machinery worldwide.

 

Technical Specifications & Available Grades

We offer high-B series grain-oriented silicon steel with precision thickness and excellent stacking factors.
 

Steel Grade	Nominal Thickness (mm)	Max. Core Loss at 50Hz (W/kg)	Min. Magnetic Induction at 800 A/m (T)
20SQGD070	0.20	0.70	≥1.92
20SQGD075	0.20	0.75	≥1.91
23SQGD080	0.23	0.80	≥1.92
23SQGD085	0.23	0.85	≥1.91
23SQGD090	0.23	0.90	≥1.89

(Note: Customized thicknesses such as 0.18mm, 0.27mm, 0.30mm, and 0.35mm are also available upon inquiry.)
 

Value-Added Core Slitting Services

YAHE STEEL is not just a material supplier; we are your production partner. We provide Precision Core Slitting and Longitudinal Shearing Services to meet your exact transformer lamination designs:

• Width Range: 10mm to 1250mm customized widths.

• Burr Control: Strictly restricted to ≤ 0.02mm to maximize transformer efficiency.

• Width Tolerance: Precise slitting with tight tolerances of ±0.1mm.
   

Applications

Our CRGO silicon steel coils are widely utilized in critical magnetic core components for:

1. Power Transformers (Step-up and Step-down)

2. Distribution Transformers (Pole-mounted and Pad-mounted)

3. Instrument Transformers (Current and Potential Transformers)

4. Reactor and Welding Machine Cores

 

Sea-Worthy Packaging & Logistics Safety

We implement strict packaging protocols for heavy industrial cargo to ensure rust prevention and structural integrity during ocean transport:

• Packaging Methods: Available in both Eye-to-Sky (Vertical) and Eye-to-Wall (Horizontal) placement.

• Protection Layers: Multi-layer moisture-proof anti-rust paper, protective galvanized steel sheets, and heavy-duty outer steel strapping.

• Warehouse & Logistics Logic: All heavy coils (2 to 8 tons) are handled using specialized lifting equipment and stored on V-shaped tracks or heavy-duty industrial flooring to ensure optimal safety.