HS Code for Hafnium powder

Hafnium powder is classified under HS code 8112.31. This code falls within Chapter 81, which deals with various base metals not covered in previous chapters of the Harmonized System. Heading 8112 covers hafnium along with several other rare or specialty metals. Subheading 8112.31 is specifically designated for unwrought hafnium, including powders, waste, and scrap. The classification is driven by the physical state of the metal; unwrought refers to metal in its primary form, such as ingots or blocks, or in the form of powder resulting from chemical or mechanical processes. Hafnium powder is highly reactive and requires specific handling, which is a characteristic of the material in this primary, unwrought state. The General Rules of Interpretation (GRI) require that the product be classified according to the most specific description. Since 8112.31 explicitly mentions powders of hafnium, it is the correct classification. This powder is frequently used in the production of superalloys and in the electronics industry for thin-film deposition, where the purity and particle size are strictly controlled.

Products Included

• High-purity hafnium powder
• Spherical hafnium powder for additive manufacturing
• Unwrought hafnium ingots
• Hafnium sponge metal
• Hafnium pellets and granules

Common Misclassification

Hafnium powder is sometimes misclassified under 8112.39, which is for wrought hafnium articles. It can also be confused with 2825.90 if the material is actually hafnium oxide (a chemical) rather than the pure metal powder. Additionally, if the powder is mixed with other metals to form a cermet, it might fall under 8113.00.

FAQ

What is the HS code for Hafnium powder?

Hafnium powder is classified under HS code 8112.31.

Does this code include hafnium alloys?

If the hafnium is the predominant metal by weight in an unwrought alloy, it may still fall under 8112.31, following the rules for base metal alloys in Section XV.