HS Code for Metal rolling mill

Metal rolling mills are classified under HS code 8455.21 based on their mechanical function and the thermal conditions of the manufacturing process they facilitate. Heading 8455 encompasses all types of metal-rolling mills and the rolls used within them. The subheadings are organized by the specific type of rolling operation. Code 8455.21 is reserved for mills that perform hot rolling or a combination of hot and cold rolling. Hot rolling involves processing metal at temperatures above its recrystallization point, which requires specific structural designs to handle thermal expansion and high-pressure deformation. This classification applies to the heavy machinery used in primary metal production, such as steel mills and aluminum processing plants. It excludes the individual rolls (classified under 8455.30) and other machine tools that do not utilize the rolling principle for shaping metal. The classification is guided by Note 3 to Section XVI, which addresses composite machines and multi-function machines. A rolling mill is considered a functional unit designed to reduce the thickness of metal through compression between rotating cylinders. The distinction between hot and cold rolling is vital because hot rolling mills are typically larger and require cooling systems and specialized lubricants. If a mill is capable of performing both hot and cold operations, it remains under 8455.21 as per the specific wording of the Harmonized System.

Products Included

• Hot strip mills for steel production
• Plate mills for heavy metal sheets
• Blooming and slabbing mills
• Combination mills capable of both hot and cold rolling cycles
• Structural shape mills for beams and rails

Common Misclassification

Common misclassifications include HS code 8455.22, which is strictly for cold rolling mills. Another error is using 8455.30, which is reserved for the rolls themselves rather than the entire mill machinery. Furthermore, machine tools for forging or bending metal are classified under 8462 and should not be confused with rolling mills.

FAQ

What is the HS code for metal rolling mill?

The HS code for hot or combination hot and cold metal rolling mills is 8455.21.

Are the replacement rolls for these mills classified under the same code?

No, replacement rolls for metal rolling mills are classified separately under HS code 8455.30.