Rolls for rolling mills
Metal-rolling mills and rolls therefor; parts thereof: > Rolls for rolling mills
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Subheadings
Products classified under HTS 8455.30.00
Work Rolls for Hot Steel Rolling Mills
These are hardened steel rolls used in the work stand of hot rolling mills to shape and reduce the thickness of steel slabs into sheets. They fall under HTS 8455.30.00 as rolls specifically designed for rolling mills in metal processing. The rolls feature high wear resistance and are precision-ground for optimal surface finish on hot-rolled steel.
Backup Rolls for Cold Rolling Mills
Large diameter backup rolls support the smaller work rolls in cold rolling mills, providing structural backing during the cold reduction of metal strips. Classified under HTS 8455.30.00 as essential rolls for rolling mills. These rolls are typically made from forged steel with high compressive strength.
Forged Alloy Steel Work Rolls for Aluminum Rolling
Precision forged alloy steel rolls used in aluminum hot and cold rolling mills to produce foil and sheet products. HTS 8455.30.00 covers these specialized rolls for metal rolling mills. They feature chrome plating for corrosion resistance against aluminum.
Cast Iron Guide Rolls for Rolling Mills
Chilled cast iron rolls used as guide rolls to align and edge-control metal strips entering work roll stands in rolling mills. Falls under HTS 8455.30.00 as rolls for rolling mills. These provide precise lateral guidance without imparting finish.
Hi-Chrome Work Rolls for Finishing Stands
High-chromium steel work rolls for the final finishing stands in hot strip mills, providing mirror surface finish on steel sheets. Classified in HTS 8455.30.00 for rolling mill rolls. Enhanced wear resistance through 3-5% chrome content.
Forged Backup Rolls for Tandem Cold Mills
Heavy-duty forged steel backup rolls for multi-stand tandem cold rolling mills processing carbon steel strip. HTS 8455.30.00 applies to these large-diameter (>2m) support rolls. Neck journals precision-machined for bearing fit.
Centrifugally Cast Ring Rolls for Section Mills
Centrifugally cast composite rolls with high-speed steel working layer over ductile iron core, used in section mills rolling beams and shapes. Under HTS 8455.30.00 as rolling mill rolls. Provides superior wear resistance for structural shapes.
Indefinite Chill Cast Iron Rolls for Plate Mills
Indefinite chill cast iron rolls for roughing and finishing in heavy plate rolling mills producing steel plates up to 400mm thick. HTS 8455.30.00 classification for rolling mill rolls. Variable hardness from barrel to neck.
Powder Metallurgy Work Rolls for Foil Rolling
Advanced powder metallurgy rolls with uniform carbide distribution for ultra-precision foil rolling of aluminum and copper. Classified under HTS 8455.30.00 as specialized rolling mill rolls. Achieves sub-micron surface finish.
Spherical Graphite Iron Backup Rolls
Nodular (ductile) cast iron backup rolls with excellent toughness for high-tonnage rolling mills. HTS 8455.30.00 covers these rolling mill rolls. Superior to grey iron for fatigue resistance.
CPC Rolls for Hot Strip Finishing
Centripetal Pattern Controlled (CPC) rolls with textured surface pattern for controlled strip crown in hot strip finishing mills. Under HTS 8455.30.00 as rolling mill rolls. Pattern optimizes flatness control.
Composite ICDP Rolls for Roughing Stands
Indefinite Chill Double Poured (ICDP) composite rolls with alloy iron shell centrifugally cast over steel shaft for roughing stands. HTS 8455.30.00 for rolling mill rolls. Excellent thermal cracking resistance.