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Code 6903 20 · Heading 6903

Refractory ceramic retorts, crucibles, muffles, nozzles, plugs, tubes, rods and similar items containing > 50 weight percent alumina, or made from an alumina-silica mixture or compound

This covers refractory ceramic retorts, crucibles, muffles, nozzles, plugs, tubes, rods and similar items containing > 50 weight percent alumina, or made from a mixture or compound of alumina and silica. It does not cover refractory bricks, blocks, tiles or similar refractory ceramic construction materials.

For example

  • A refractory ceramic retort containing > 50 weight percent alumina
  • A refractory ceramic crucible containing > 50 weight percent alumina
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See the official tariff text

Official tariff text

Retorts, crucibles, mufflers, nozzles, plugs, supports, cupels, tubes, pipes, sheaths, rods and other refractory ceramic goods, containing > 50% alumina, or a compound of alumina and silica (excl. refractory bricks, blocks, tiles and similar refractory ceramic constructional goods)

Full 8-digit codes

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2 codes below this one

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Export to Norway

What Norwegian customs charges when goods like these are imported into Norway.

  • 69.03.2000

    Containing by weight more than 50 % of alumina (Al 2O 3) or of a mixture or compound of alumina and of silica (SiO 2)

    Ordinary duty
    Duty free
    Goods of EU origin
    Duty free You need documentation of EU origin to use this rate.

Norwegian tariff data version 1.5/1.2, last checked Aug. 9, 2026.

Contains data from Norwegian Customs (data.toll.no), licensed under CC BY 4.0, adapted for display.

Export to the United Kingdom

What UK customs charges when goods like these are imported into the UK.

  • All 2 UK lines under this code

    They all have the same duty rates shown here.

    Ordinary duty
    4.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

These rates apply in Great Britain. Different rules may apply for goods entering Northern Ireland.

UK tariff data version v4.0.1576, last checked Aug. 9, 2026.

Contains public sector information licensed under the Open Government Licence v3.0.

Source: UK Department for Business and Trade (data.api.trade.gov.uk).

Check the neighbouring codes

The codes just before and after this one, in case a nearby group fits better.

See all 3 codes at this level
Previous code 6903 10

Retorts, crucibles, mufflers, nozzles, plugs, supports, cupels, tubes…
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Retorts, crucibles, mufflers, nozzles, plugs, supports, cupels, tubes…

Next code 6903 90

Retorts, crucibles, mufflers, nozzles, plugs, supports, cupels, tubes…

Duty rates shown here are estimates, read from official EU / Danish, Norwegian and UK tariff data for orientation only. Confirm the current rate with SKAT, TARIC, Norwegian Customs or the UK Online Trade Tariff before you file. The rate you pay can also depend on the country of origin. These are base customs duties only: import VAT, excise duties, anti-dumping duties and safeguard or quota measures are not included.