HS Code for Bronze ingots

Bronze ingots are classified under HS code 7403.22. Like billets, ingots are considered unwrought forms of copper-tin alloys. Heading 7403 is reserved for refined copper and copper alloys that have not been worked. Ingots are typically produced by pouring molten metal into molds and are intended for remelting or further processing in foundries. The classification 7403.22 is specific to bronze, where tin is the predominant alloying element. The Harmonized System distinguishes between refined copper (7403.1x) and copper alloys (7403.2x). Within the alloys, bronze is separated from brass (copper-zinc) and cupro-nickel. The physical state of the ingot—being a primary form of the metal—is the deciding factor for this classification. These items must not have been rolled, forged, or otherwise shaped into finished goods. They are often traded as raw material for the production of bearings, bushings, and marine hardware. Documentation should clearly state the tin content to justify the use of the bronze-specific subheading.

Products Included

• Bronze casting ingots
• Bronze pigs
• Bronze shot (unwrought)
• Remelt bronze blocks
• Foundry bronze ingots

Common Misclassification

Bronze ingots are sometimes misclassified under 7403.21 (brass ingots) if the chemical composition is not verified, as brass contains zinc as the main alloy. They may also be confused with 7405.00, which covers master alloys of copper. Master alloys are used for adding specific elements to a melt and are not intended for direct casting into finished parts like standard bronze ingots.

FAQ

What is the HS code for bronze ingots?

The HS code for bronze ingots is 7403.22, which applies to unwrought copper-tin base alloys.

What defines bronze as unwrought in the HS system?

Unwrought bronze refers to metal in primary forms like ingots, blocks, or pigs that have been cast or sintered and have not undergone mechanical working like rolling or drawing.