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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If other alloy steel, not silicon-electrical
Non-silicon alloy flat-rolled products >600mm go to general 7225.19, lacking electrical steel properties.
If further worked (coated/insulated)
Chapter 72 defines 'further worked' (e.g., coated) products shift to 7226.91 for processed electrical steel.
If not alloyed to electrical steel specs
Basic silicon-containing carbon steel flat products classify under 7208, not meeting alloy steel electrical criteria.
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Import Tips & Compliance
• 1
• Certify silicon-electrical steel status with manufacturer's specs showing Goss texture. 2
• Declare exact thickness/width to match statistical suffixes if required. 3
• Use proper packaging to prevent surface damage—no rust allowance on entry
Related Products under HTS 7225.11.00.00
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.
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.