PlainTariff

HTS Chapter 81 · Section XV

Other base metals; cermets; articles thereof

Chapter 81 averages a 3.4% general (MFN) duty across its 74 rated tariff lines, with the steepest line reaching 15%.

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3.4%
avg MFN duty
15%
highest line
74
rated tariff lines
32%
enter duty-free

Tariff lines in Chapter 81 by duty-rate band

How the 74 rated lines in this chapter distribute across general (MFN) rate ranges

Duty-free240.1–5%365–10%1010–20%4

Source: USITC HTS 2026 As of 2026

About HTS Chapter 81

HTS Chapter 81 - Other base metals; cermets; articles thereof - organizes 128 tariff classifications in the US Harmonized Tariff Schedule. Of these, 74 carry explicit duty rates at the tariff-line level, meaning importers can look up a specific Column 1 General (MFN) rate for every qualifying shipment. Chapter 81 sits within Section XV (Base Metals and Articles of Base Metal), which groups commercially related product categories together.

The average general duty rate across all tariff lines in this chapter is 3.4%, with the highest individual rate reaching 15%. Duty burden varies widely across tariff lines within this chapter, classification precision matters. Below, each line links to its individual detail page showing General, Special (FTA), and Column 2 rates.

Use this chapter page as the entry point for classifying any product that falls under other base metals; cermets; articles thereof. The tree below preserves the HTS indentation hierarchy (heading → subheading → tariff line), so you can narrow from broad category to specific 8-10 digit code. All data comes from the US International Trade Commission (USITC) HTS 2026 Basic Edition, the official schedule of import duties used by US Customs and Border Protection.

Chapter 81 At a Glance

Tariff distribution statistics for HTS Chapter 81 from USITC 2026 Basic Edition.
Metric Value Notes
Total tariff classifications 128 All headings, subheadings, and tariff lines.
Lines with explicit rates 74 Tariff lines carrying a Column 1 General duty.
Average general rate 3.4% Mean MFN rate across rated lines.
Highest line rate 15% Peak Column 1 General rate within the chapter.

Source: USITC Harmonized Tariff Schedule 2026 Basic Edition. Computed at last data refresh, see methodology.

Tariff Lines

8101 Tungsten (wolfram) and articles thereof, including waste and scrap:
8101.10.00.00 Powders
kg, W kg
7%
Other:
8101.94.00.00 Unwrought tungsten, including bars and rods obtained simply by sintering
kg
6.6%
8101.96.00.00 Wire
kg
4.4%
8101.97.00.00 Waste and scrap
kg, W kg
2.8%
8101.99 Other:
8101.99.10.00 Bars and rods, other than those obtained simply by sintering, profiles, plates, sheets, strip and foil
kg
6.5%
8101.99.80.00 Other
kg
3.7%
8102 Molybdenum and articles thereof, including waste and scrap:
8102.10.00.00 Powders
kg, Mo kg
9.1¢/kg on molybdenum content + 1.2%
Other:
8102.94.00.00 Unwrought molybdenum, including bars and rods obtained simply by sintering
kg, Mo kg
13.9¢/kg on molybdenum content + 1.9%
8102.95 Bars and rods, other than those obtained simply by sintering, profiles, plates, sheets, strip and foil:
8102.95.30.00 Bars and rods
kg
6.6%
8102.95.60.00 Other
kg
6.6%
8102.96.00.00 Wire
kg
4.4%
8102.97.00.00 Waste and scrap
kg, Mo kg
Free
8102.99.00.00 Other
kg
3.7%
8103 Tantalum and articles thereof, including waste and scrap:
8103.20.00 Unwrought tantalum, including bars and rods obtained simply by sintering; powders
2.5%
8103.20.00.30 Powders
kg
8103.20.00.90 Other
kg
8103.30.00.00 Waste and scrap
kg
Free
Other:
8103.91.00.00 Crucibles
kg
4.4%
8103.99.00.00 Other
kg
4.4%
8104 Magnesium and articles thereof, including waste and scrap:
Unwrought magnesium:
8104.11.00.00 Containing at least 99.8 percent by weight of magnesium
kg
8%
8104.19.00.00 Other
kg, Mg kg
6.5%
8104.20.00.00 Waste and scrap
kg
Free
8104.30.00.00 Raspings, turnings and granules, graded according to size; powders
kg, Mg kg
4.4%
8104.90.00.00 Other
kg, Mg kg
14.8¢/kg on magnesium content + 3.5%
8105 Cobalt mattes and other intermediate products of cobalt metallurgy; cobalt and articles thereof, including waste and scrap:
8105.20 Cobalt mattes and other intermediate products of cobalt metallurgy; unwrought cobalt; powders:
Unwrought cobalt:
8105.20.30.00 Alloys
kg
4.4%
8105.20.60.00 Other
kg
Free
8105.20.90.00 Other
kg
Free
8105.30.00.00 Waste and scrap
kg
Free
8105.90.00.00 Other
kg
3.7%
8106 Bismuth and articles thereof, including waste and scrap:
8106.10.00.00 Containing more than 99.99 percent of bismuth, by weight
kg
Free
8106.90.00.00 Other
kg
Free
8108 Titanium and articles thereof, including waste and scrap:
8108.20.00 Unwrought titanium; powders
15%
8108.20.00.10 Sponge
kg
Other:
8108.20.00.15 Powders
kg
8108.20.00.30 Ingots
kg
8108.20.00.95 Other
kg
8108.30.00.00 Waste and scrap
kg
Free
8108.90 Other:
8108.90.30 Articles of titanium
5.5%
8108.90.30.30 Castings
kg
8108.90.30.60 Other
kg
8108.90.60 Other
15%
8108.90.60.20 Blooms, sheet bars, and slabs
kg
8108.90.60.31 Other bars, rods, profiles and wire
kg
8108.90.60.45 Plates, sheets, strips and foil
kg
8108.90.60.60 Tubes and pipes
kg
8108.90.60.75 Other
kg
8109 Zirconium and articles thereof, including waste and scrap:
Unwrought zirconium; powders:
8109.21.00.00 Containing less than 1 part hafnium to 500 parts zirconium by weight
kg
4.2%
8109.29.00.00 Other
kg
4.2%
Waste and scrap:
8109.31.00.00 Containing less than 1 part hafnium to 500 parts zirconium by weight
kg
Free
8109.39.00.00 Other
kg
Free
Other:
8109.91.00.00 Containing less than 1 part hafnium to 500 parts zirconium by weight
kg
3.7%
8109.99.00.00 Other
kg
3.7%
8110 Antimony and articles thereof, including waste and scrap:
8110.10.00.00 Unwrought antimony; powders
kg
Free
8110.20.00.00 Waste and scrap
kg
Free
8110.90.00.00 Other
kg
Free
8111.00 Manganese and articles thereof, including waste and scrap:
8111.00.30.00 Waste and scrap
kg
Free
Other:
Unwrought manganese:
8111.00.47.00 Flake containing at least 99.5 percent by weight manganese
kg
14%
8111.00.49 Other
14%
8111.00.49.10 Powder containing at least 99.5 percent by weight manganese
kg
8111.00.49.90 Other
kg
8111.00.60.00 Other
kg
3.7%
8112 Beryllium, chromium, hafnium, rhenium, thallium, cadmium, germanium, vanadium, gallium, indium and niobium (columbium), and articles of these metals, including waste and scrap:
Beryllium:
8112.12.00.00 Unwrought; powders
kg
8.5%
8112.13.00.00 Waste and scrap
kg
Free
8112.19.00.00 Other
kg
5.5%
Chromium:
8112.21.00.00 Unwrought; powders
kg
3%
8112.22.00.00 Waste and scrap
kg
Free
8112.29.00.00 Other
kg
3%
Hafnium:
8112.31.00.00 Unwrought; waste and scrap; powders
kg
Free
8112.39.00.00 Other
kg
4%
Rhenium:
8112.41 Unwrought; waste and scrap; powders:
8112.41.10.00 Waste and scrap
kg
Free
8112.41.50.00 Unwrought; powders
kg
3%
8112.49.00.00 Other
kg
4%
Thallium:
8112.51.00.00 Unwrought; powders
kg
4%
8112.52.00.00 Waste and scrap
kg
Free
8112.59.00.00 Other
kg
4%
Cadmium:
8112.61.00.00 Waste and scrap
kg
Free
8112.69 Other:
8112.69.10.00 Unwrought cadmium; powders
kg
Free
8112.69.90.00 Other
kg
4.4%
Other:
8112.92 Unwrought; waste and scrap; powders:
8112.92.07.00 Waste and scrap
kg
Free
Other:
8112.92.10.00 Gallium
kg
3%
8112.92.30.00 Indium
kg
Free
8112.92.40.00 Niobium (columbium)
kg
4.9%
Germanium:
8112.92.60.00 Unwrought
kg
2.6%
8112.92.65.00 Other
kg
4.4%
8112.92.70.00 Vanadium
kg, V kg
2%
8112.99 Other:
8112.99.10.00 Germanium
kg
4.4%
8112.99.20.00 Vanadium
kg, V kg
2%
8112.99.91.00 Other
kg
4%
8113.00.00.00 Cermets and articles thereof, including waste and scrap
kg
3.7%

Frequently Asked Questions

What does HTS Chapter 81 cover? ▼
HTS Chapter 81 covers Other base metals; cermets; articles thereof. It contains 128 individual tariff classifications, of which 74 have specified duty rates. This chapter falls under Section XV (Base Metals and Articles of Base Metal).
What is the average tariff rate for Chapter 81? ▼
The average general (MFN) duty rate across all tariff lines in Chapter 81 is 3.4%. The highest individual rate in this chapter is 15%. Actual duty on a specific product depends on its precise HTS classification.
How do I find the correct HTS code for my product? ▼
Browse the tariff lines listed below organized by heading and subheading. Each item with an HTS number links to its full detail page showing general, special, and Column 2 duty rates. For complex classifications, consult a licensed customs broker or contact US Customs and Border Protection (CBP).
Are there any duty-free items in Chapter 81? ▼
Yes, many chapters contain items with a "Free" general rate, meaning no duty is assessed for imports from most-favored-nation countries. Look for items marked "Free" in the tariff lines table below. Additional preferential rates may also apply under free trade agreements.
Where does PlainTariff get its tariff data? ▼
All tariff data comes from the U.S. International Trade Commission (USITC) Harmonized Tariff Schedule (HTS) 2026 Basic Edition, the official schedule of US import duties.

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Next steps

Find the exact rate for your product within Chapter 81.

The chapter average is an orientation only, duty is set per tariff line, and Special preferential rates may apply to qualifying origins.

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Sources: U.S. International Trade Commission Harmonized Tariff Schedule (2026 Basic Edition) and FAO FAOSTAT Trade: Crops and Livestock. See our methodology for how figures are computed.

Every figure on PlainTariff is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.