Aerospace Zirconium Alloy Borings
Fine borings collected from drilling zirconium components used in aircraft engines, with hafnium content below the 1:500 ratio by weight. These borings are fragmented and not usable as finished articles, qualifying as waste and scrap under tariff item 8109.31.00.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the borings are in a form usable directly as a product
Unwrought zirconium, not waste and scrap, if the material is still in a usable form.
If the borings are processed into a finished article
Articles of zirconium, other than waste and scrap, if further worked.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the borings are accompanied by a certificate of analysis confirming hafnium content below 1 part per 500 parts zirconium
• Declare the goods as waste and scrap, not as articles, to avoid misclassification
• Keep records of the original source to support the low-hafnium claim
Related Products under Tariff item 8109.31.00
Lab Equipment Zirconium Scrap
Broken crucibles and boats made of low-hafnium zirconium, discarded from analytical laboratories after use. These items are no longer usable due to breakage and contamination, meeting the definition of waste and scrap under tariff item 8109.31.00.
Low-Hafnium Zirconium Turning Scrap
Machining turnings and chips generated from zirconium alloy aerospace parts, with hafnium content below 1 part per 500 parts zirconium by weight. These fragmented pieces are not usable as articles and are classified as waste and scrap under tariff item 8109.31.00.
Naval Zirconium Propeller Scrap
Scrap from corroded zirconium propeller shafts used in submarines, with low hafnium content meeting the 1:500 ratio. The material is no longer usable due to corrosion and is classified as waste and scrap under tariff item 8109.31.00.
Pharmaceutical Reactor Zirconium Scrap
Cuttings and offcuts from zirconium vessels used in pharmaceutical API synthesis, with hafnium content below the 1:500 ratio. These fabrication waste pieces are not usable as articles and are classified as waste and scrap under tariff item 8109.31.00.
Salt Bath Furnace Liners Scrap
Degraded zirconium liners removed from salt bath furnaces, with low hafnium content. The liners are no longer usable due to wear and chemical attack, qualifying as waste and scrap under tariff item 8109.31.00.
Test Sample Zirconium Clippings
Small clippings from quality control tests on zirconium sheets for medical implants, with hafnium below the 1:500 ratio. These clippings are lab-generated waste, not usable as articles, and are classified as waste and scrap under tariff item 8109.31.00.