What is the typical U.S. duty rate for Chapter 81 imports?

General (Column 1) duty rates for ad-valorem lines range from 2% to 15% (median 4.4%); roughly 30% of lines enter duty-free. Use the calculator linked from each code page to compute the full landed rate, including Section 301/232 overlays, IEEPA tariffs, and AD/CVD deposits where applicable.

Are Section 301 or Section 232 tariffs applied to Chapter 81 products?

Section 301 (China) and Section 232 (steel, aluminum, copper) tariffs are layered on top of the base HTSUS rate via Chapter 99 provisions. Whether they apply to a specific 10-digit line in Chapter 81 depends on the product's country of origin, material content, and the active proclamation. Open any code in this chapter to see the live overlay stack and effective rate.

Are there antidumping or countervailing duty (AD/CVD) orders covering Chapter 81 products?

AD/CVD orders are issued at the case level by the Department of Commerce against specific products from specific countries. Tandom's AD/CVD catalog cross-references every active order to the HTS codes it covers — open any code in Chapter 81 to see flagged orders, deposit rates, and the underlying scope determinations.

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Section XV: Base Metals and Articles of Base Metal

Chapter 81: Other base metals; cermets; articles thereof

Q: What does HTS Chapter 81 cover?

Chapter 81 of the U.S. Harmonized Tariff Schedule (HTSUS) covers Other base metals; cermets; articles thereof. It sits within Section XV: Base Metals and Articles of Base Metal. Tandom's catalog lists all 84 10-digit statistical lines and 10 4-digit headings in this chapter.

Chapter 81 of the U.S. Harmonized Tariff Schedule covers Other base metals; cermets; articles thereof and sits within Section XV: Base Metals and Articles of Base Metal.

About Chapter 81

Chapter 81 contains 84 10-digit statistical lines grouped under 10 4-digit headings. Brokers, importers, and customs counsel use these codes to declare other base metals; cermets; articles thereof on entry summaries (CBP Form 7501) and to look up the applicable Column 1, Special, and Column 2 duty rates.

General (Column 1) duty rates for ad-valorem lines in Chapter 81 range from 2% to 15%, with a median of 4.4%. About 29% of the chapter's lines (24 of 84) enter duty-free under the general rate. Special-program rates (USMCA, KORUS, GSP, AGOA, and others) and Chapter 99 overlays modify these base rates for qualifying shipments.

Every code page links into the Tandom Tariff Calculator with the HTS code prefilled, so you can compute the full landed duty for a specific shipment by entering value, country of origin, and (where relevant) material content or date of entry. Tandom's data refreshes daily from USITC HTSUS, CBP CSMS, the Federal Register, and the Department of Commerce — the same authoritative sources the trade community files against.

Code	Description	General	Column 2	Special	Units
8101.10.00.00	Powders	7%	58%	Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,MA, OM,P,PA,PE,S,SG)	kg, W kg
8101.94.00.00	·Unwrought tungsten, including bars and rods obtained simply by sintering	6.6%	60%	Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,MA, OM,P,PA,PE,S,SG)	kg
8101.96.00.00	·Wire	4.4%	60%	Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,MA, OM,P,PA,PE,S,SG)	kg
8101.97.00.00	·Waste and scrap	2.8%	50%	Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg, W kg
8101.99	·Other:	—	—	—	—
8101.99.10.00	··Bars and rods, other than those obtained simply by sintering, profiles, plates, sheets, strip and foil	6.5%	60%	Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,MA, OM,P,PA,PE,S,SG)	kg
8101.99.80.00	··Other	3.7%	45%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg

Code	Description	General	Column 2	Special	Units
8102.10.00.00	Powders	9.1¢/kg on molybdenum content + 1.2%	$1.10/kg on molybdenum content + 15%	Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,MA, OM,P,PA,PE,S,SG)	kg, Mo kg
8102.94.00.00	·Unwrought molybdenum, including bars and rods obtained simply by sintering

Code	Description	General	Column 2	Special	Units
8103.20.00	Unwrought tantalum, including bars and rods obtained simply by sintering; powders	2.5%	25%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	—
8103.20.00.30	·Powders	2.5%

Code	Description	General	Column 2	Special	Units
8104.11.00.00	·Containing at least 99.8 percent by weight of magnesium	8%	100%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg
8104.19.00.00	·Other	6.5%

Code	Description	General	Column 2	Special	Units
8106.10.00.00	Containing more than 99.99 percent of bismuth, by weight	Free	7.5%	—	kg
8106.90.00.00	Other	Free	7.5%

Chapter 81: Other base metals; cermets; articles thereof

Exclusions from Section XV

Parts of General Use

Classification of Composite Articles

Alloy Classification Rules

Iron vs. Nonalloy Steel vs. Stainless

`8101`Tungsten (wolfram) and articles thereof, including waste and scrap:

`8102`Molybdenum and articles thereof, including waste and scrap:

`8103`Tantalum and articles thereof, including waste and scrap:

`8104`Magnesium and articles thereof, including waste and scrap:

`8105`Cobalt mattes and other intermediate products of cobalt metallurgy; cobalt and articles thereof, including waste and scrap:

`8106`Bismuth and articles thereof, including waste and scrap:

`8108`Titanium and articles thereof, including waste and scrap:

`8109`Zirconium and articles thereof, including waste and scrap:

`8110`Antimony and articles thereof, including waste and scrap:

`8111`

`8112`Beryllium, chromium, hafnium, rhenium, thallium, cadmium, germanium, vanadium, gallium, indium and niobium (columbium), and articles of these metals, including waste and scrap:

`8113`Cermets and articles thereof, including waste and scrap

Frequently asked questions

What does HTS Chapter 81 cover?

What is the typical U.S. duty rate for Chapter 81 imports?

Are Section 301 or Section 232 tariffs applied to Chapter 81 products?

Are there antidumping or countervailing duty (AD/CVD) orders covering Chapter 81 products?

Code	Description	General	Column 2	Special	Units
8105.20	Cobalt mattes and other intermediate products of cobalt metallurgy; unwrought cobalt; powders:	—	—	—	—
8105.20.30.00	··Alloys	4.4%

Code	Description	General	Column 2	Special	Units
8108.20.00	Unwrought titanium; powders	15%	25%	Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,MA, OM,P,PA,PE,S,SG)	—
8108.20.00.10	·Sponge	15%	25%

Code	Description	General	Column 2	Special	Units
8109.21.00.00	·Containing less than 1 part hafnium to 500 parts zirconium by weight	4.2%	25%	Free (A+,AU,BH,CL,CO,D,E, IL,JO,KR,MA,OM,P, PA,PE,S,SG)	kg
8109.29.00.00	·Other	4.2%

Code	Description	General	Column 2	Special	Units
8110.10.00.00	Unwrought antimony; powders	Free	4.4¢/kg	—	kg
8110.20.00.00	Waste and scrap	Free	4.4¢/kg

Code	Description	General	Column 2	Special	Units
8111.00	Manganese and articles thereof, including waste and scrap:	—	—	—	—
8111.00.30.00	Waste and scrap	Free	Free

Code	Description	General	Column 2	Special	Units
8112.12.00.00	·Unwrought; powders	8.5%	25%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg
8112.13.00.00	·Waste and scrap

Exclusions from Section XV

Parts of General Use

Classification of Composite Articles

Alloy Classification Rules

Iron vs. Nonalloy Steel vs. Stainless

8101Tungsten (wolfram) and articles thereof, including waste and scrap:

8102Molybdenum and articles thereof, including waste and scrap:

8103Tantalum and articles thereof, including waste and scrap:

8104Magnesium and articles thereof, including waste and scrap:

8105Cobalt mattes and other intermediate products of cobalt metallurgy; cobalt and articles thereof, including waste and scrap:

8106Bismuth and articles thereof, including waste and scrap:

8108Titanium and articles thereof, including waste and scrap:

8109Zirconium and articles thereof, including waste and scrap:

8110Antimony and articles thereof, including waste and scrap:

8111

8112Beryllium, chromium, hafnium, rhenium, thallium, cadmium, germanium, vanadium, gallium, indium and niobium (columbium), and articles of these metals, including waste and scrap:

8113Cermets and articles thereof, including waste and scrap

Frequently asked questions

What does HTS Chapter 81 cover?

What is the typical U.S. duty rate for Chapter 81 imports?

Are Section 301 or Section 232 tariffs applied to Chapter 81 products?

Are there antidumping or countervailing duty (AD/CVD) orders covering Chapter 81 products?

`8101`Tungsten (wolfram) and articles thereof, including waste and scrap:

`8102`Molybdenum and articles thereof, including waste and scrap:

`8103`Tantalum and articles thereof, including waste and scrap:

`8104`Magnesium and articles thereof, including waste and scrap:

`8105`Cobalt mattes and other intermediate products of cobalt metallurgy; cobalt and articles thereof, including waste and scrap:

`8106`Bismuth and articles thereof, including waste and scrap:

`8108`Titanium and articles thereof, including waste and scrap:

`8109`Zirconium and articles thereof, including waste and scrap:

`8110`Antimony and articles thereof, including waste and scrap:

`8111`

`8112`Beryllium, chromium, hafnium, rhenium, thallium, cadmium, germanium, vanadium, gallium, indium and niobium (columbium), and articles of these metals, including waste and scrap:

`8113`Cermets and articles thereof, including waste and scrap