M15 Grain-Oriented Silicon Electrical Steel Sheet
Flat-rolled grain-oriented silicon electrical steel with 3% silicon content, width 800 mm, thickness 0.30 mm, optimized for minimum core loss in transformers. Classified under HTS 7225.11.00.00 as grain-oriented silicon electrical steel, a specialized alloy steel over 600 mm wide for electrical applications. The grain orientation enhances magnetic properties by aligning crystal structure for efficient flux flow.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If width under 600 mm
Narrower flat-rolled silicon electrical steel falls under 7226 for widths <600 mm, same grain-oriented properties.
If not grain-oriented (non-oriented)
Non-oriented silicon electrical steel uses different magnetic properties, classified separately in 7225.30.
If not alloy steel (carbon steel equivalent)
If silicon content doesn't qualify as alloy steel per Chapter 72 note (e), moves to Chapter 72 carbon steel headings.
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Import Tips & Compliance
• 1
• Provide mill test certificates confirming grain orientation and silicon content >2.5%. 2
• Ensure accurate width measurement (>600mm) to avoid reclassification to narrower products. 3
• Watch for rust/discoloration—no duty allowance per Chapter 72 notes
Related Products under HTS 7225.11.00.00
M4 Grain-Oriented Silicon Steel Coil
High-permeability M4 grade grain-oriented silicon electrical steel coil, 1000 mm wide, 0.27 mm thick, used in distribution transformer cores. Falls under HTS 7225.11.00.00 due to its alloy steel composition with oriented grains for superior magnetic performance. The wide format (>600 mm) distinguishes it from narrower electrical steels.
HI-B Grain-Oriented Electrical Steel Plate
High-induction HI-B grade grain-oriented silicon steel plate, 900 mm wide, 0.23 mm thick, for high-efficiency transformer laminations. HTS 7225.11.00.00 covers this wide, grain-oriented alloy steel designed for low loss in AC magnetic circuits. Grain orientation aligns easy magnetization direction with rolling direction.
0.30mm Grain-Oriented Silicon Steel for Power Transformers
0.30 mm thick grain-oriented silicon electrical steel sheet, 700 mm wide, with domain-refined structure for ultra-low core loss. Classified in HTS 7225.11.00.00 as flat-rolled alloy steel >600 mm specifically grain-oriented for electrical use. Essential for large power transformer cores requiring directional magnetic properties.
Domain-Refined GO Silicon Steel 0.27mm
Domain-refined grain-oriented (GO) silicon electrical steel, 0.27 mm thickness, 1100 mm width, minimizing losses in high-frequency applications. HTS 7225.11.00.00 applies to this wide alloy steel with precise grain orientation for transformer manufacturing. Laser scribing enhances domain structure for better performance.
Conventional Grain-Oriented Steel CRGO 0.35mm
Conventional grain-oriented (CRGO) silicon electrical steel, 0.35 mm thick, 750 mm wide, standard grade for distribution transformers. Under HTS 7225.11.00.00 as flat-rolled grain-oriented alloy steel >600 mm for magnetic cores. Provides balanced cost/performance for electrical applications.
High-Tension Transformer GO Steel Sheet
Grain-oriented silicon steel sheet for high-tension transformers, 0.23 mm x 950 mm wide, low core loss grade. HTS 7225.11.00.00 for wide grain-oriented electrical alloy steel. Optimized crystal orientation reduces eddy current losses in power grids.