HS Code for Foundry molding box

Foundry molding boxes, commonly referred to as flasks in the metal casting industry, are classified under HS code 8480.10. This classification is governed by the General Interpretative Rules (GIR) which prioritize the specific function of an article within industrial processes. Chapter 84 encompasses machinery and mechanical appliances, and heading 8480 is dedicated to molding boxes, mold bases, and patterns. The molding box is a critical component in sand casting, acting as a rigid frame that holds the molding sand and the pattern in place while the molten metal is poured. Because these boxes are specialized equipment designed exclusively for the foundry industry to facilitate the creation of metal castings, they are classified here rather than under general headings for iron or steel articles. The classification applies to both the cope (top half) and drag (bottom half) of the flask assembly, regardless of whether they are constructed from cast iron, fabricated steel, or aluminum, as long as their primary purpose is to contain foundry molds during the casting process.

Products Included

• Steel foundry flasks for sand casting
• Aluminum molding boxes
• Snap flasks used in manual molding
• Tight flasks for automated high-pressure lines
• Two-part cope and drag sets
• Ductile iron molding frames
• Slip flasks for removable mold applications

Common Misclassification

Foundry molding boxes are often misclassified under HS code 7326.90, which covers miscellaneous articles of iron or steel. This mistake typically occurs when the classifier focuses on the material of construction rather than the specialized industrial application. However, according to the Section XVI notes, specific machinery components in Chapter 84 take precedence. Another confusion arises with HS code 8480.71, which is intended for molds used for plastics or rubber. It is vital to distinguish between the 'box' (the container) and the 'mold' (the cavity-forming tool) or the 'pattern' (the model), which are classified under different subheadings of 8480.

FAQ

What is the HS code for foundry molding box?

The correct HS code for a foundry molding box used in metal casting is 8480.10.

Are molding patterns included in this HS code?

No, molding patterns used to create the shape within the sand are classified separately under HS code 8480.30.