HS Code for Unwrought bronze

HS code 7403.22 is dedicated to unwrought bronze, which the Harmonized System defines as an alloy of copper and tin. For a product to be classified here, the tin content must be significant, and in cases where other elements are present, the tin must predominate by weight over each of those other elements. The "unwrought" status indicates that the bronze is in a primary form, such as an ingot or a block, which has not been worked beyond simple casting. These materials serve as the feedstock for various industrial applications, including the production of bearings, bushings, and marine hardware. The classification falls under heading 7403, which is reserved for refined copper and copper alloys that have not been manufactured into semi-finished products like sheets or tubes. Distinguishing bronze from other copper alloys like brass (copper-zinc) or cupro-nickel is a common challenge that requires a detailed mill test report or chemical composition analysis to ensure compliance with the HS nomenclature. This code is essential for the heavy machinery and maritime industries where bronze's corrosion resistance and strength are required.

Products Included

• Bronze ingots
• Bronze billets and blocks
• Unwrought copper-tin alloys
• Phosphor bronze ingots
• Leaded bronze in primary forms

Common Misclassification

The most common misclassification is confusing bronze with brass, which is classified under 7403.21. Another error is classifying other copper alloys, such as cupro-nickel or copper-nickel-zinc (nickel silver), under this code; these belong under 7403.29. Additionally, bronze scrap is classified under 7404.00, and worked bronze bars are under 7407.29.

FAQ

What is the HS code for unwrought bronze?

Unwrought bronze, defined as copper-tin base alloys, is classified under HS code 7403.22.

How is bronze distinguished from brass in the HS?

The distinction is based on the alloying element: brass is primarily a copper-zinc alloy (7403.21), while bronze is primarily a copper-tin alloy (7403.22).