HS Code 6903Ceramic goods; (e.g. retorts, crucibles, muffles, nozzles, plugs, supports cupels, tubes, pipes, sheaths, rods and slide gates) excluding those of siliceous fossil meals or of similar siliceous earths
3 six-digit codes · Heading 3 of 13 in Chapter 69 · World Customs Organization Harmonized System
These are heat-proof parts used in furnaces and metal work.
“Ceramic goods; (e.g. retorts, crucibles, muffles, nozzles, plugs, supports cupels, tubes, pipes, sheaths, rods and slide gates) excluding those of siliceous fossil meals or of similar siliceous earths” divides three ways under heading 6903 — 690310, 690320 and 690390. Each carries its own customs description, and the exact wording below is what a classification has to match. The heading is number 3 of 13 in Chapter 69, Ceramic products, which runs to 30 six-digit codes in all.
Six-digit codes under heading 6903
| HS Code | Import–export description |
|---|---|
| 690310 | Refractory ceramic goods; containing, by weight, more than 50% of free carbon, excluding those of siliceous fossil meals or similar earths |
| 690320 | Refractory ceramic goods; containing by weight more than 50% of alumina or of a mixture or compound of alumina and of silica, excluding those of siliceous fossil meals or similar earths |
| 690390 | Refractory ceramic goods; composition of which n.e.c. in heading no. 6903, other than those of siliceous fossil meals or similar earths |
What HS code 6903 covers
Heading 6903 sits in Section XIII of the Harmonized System. It is the home of refractory ceramic goods that are not plain bricks or blocks. Refractory means the goods keep their shape under very high heat.
A crucible holds melted metal. A retort is a closed vessel that is heated. A muffle is a small chamber that keeps items away from the flame. Nozzles and slide gates guide the flow of molten metal. Refractory tubes, pipes and sheaths protect or carry parts inside hot equipment.
Goods made of siliceous fossil meals, such as diatomite, are not part of this heading. Some traders also search for it as HSN code 6903.
How to choose the right 6903 subheading
The split inside this heading is based on what the product is made of, by weight. Work through the steps in order. This is the core of tariff classification here.
Step one: check the free carbon. Step two: if not, check alumina. Step three: if neither test fits, use 690390, the code for other refractory ceramic goods.
- 690390: all other compositions in heading 6903
Difference between HS 6902 and 6903
Heading 6902 is for refractory bricks, blocks, tiles and similar building-type goods. Ask yourself if the item is a building unit or a shaped working part.
If the goods are made of siliceous fossil meals or similar siliceous earths, they move out of 6903 and into 6901. If the item is ceramic ware for laboratory, chemical or other technical use, check 6909. Ceramic pipes and conduits for building use sit in 6906. Anything ceramic that fits no named heading goes to 6914.
When two headings look possible, read the full wording of each and the chapter notes. Our HS code classifier can help you narrow it down.
HS code 6903 import and export data
EximDataX shows shipment-level import and export records from official customs sources. Coverage: 43 direct customs feeds plus 184 mirror-derived countries. Named buyers and named suppliers are available in 38 of the 43 direct markets. Most markets refresh weekly and some refresh daily.
You can search by HS code to see who imports and exports a product, and book a free demo.
How to find buyers for refractory ceramic goods
Pick the six-digit code that matches your product first. A clear code keeps your search clean and stops you from mixing in goods that do not fit. Then move on to buyer data or supplier data to build your list.
If you sell a related product, look at the neighbouring headings in Chapter 69 too. Each has its own page with its own codes.
Related
- Chapter 69 ceramic products
- HS 6902 refractory bricks and blocks
- HS 6901 siliceous fossil meal ceramics
- HS 6909 laboratory and technical ceramic ware
- HS 6906 ceramic pipes and conduits
- HS 6914 other ceramic articles
- All HS code chapters
- Import data
- Export data
- Refractory ceramics buyer data
- Refractory ceramics supplier data
- HS code classifier
- Book a free demo
Nearby headings in Chapter 69
- 6901Bricks, blocks, tiles and other ceramic goods of siliceous fossil meals (e.g.…1 code
- 6902Refractory bricks, blocks, tiles and similar refractory ceramic…3 codes
- 6904Ceramic building bricks, floor blocks, support or filler tiles and the like2 codes
- 6905Roofing tiles, chimney-pots, cowls, chimney liners, architectural ornaments…2 codes
- 6906Ceramic pipes, conduits, guttering and pipe fittings1 code
- 6907Ceramic flags and paving, hearth or wall tiles; ceramic mosaic cubes and the…5 codes
- 6909Ceramic ware for laboratory, chemical, other technical uses; ceramic troughs…4 codes
- 6910Ceramic sinks, wash basins, wash basin pedestals, baths, bidets, water closet…2 codes
- 6911Tableware, kitchenware, other household articles and toilet articles; of…2 codes
- 6912Ceramic tableware, kitchenware, other household articles and toilet articles…1 code
- 6913Statuettes and other ornamental ceramic articles2 codes
- 6914Ceramic articles; n.e.c. in chapter 692 codes
Who ships under 6903?
EximDataX tracks the live import–export records filed under this heading and the 3 codes beneath it: named buyers, suppliers, quantities and values from official customs feeds.
Section XIII: Articles of Stone, Ceramic and Glass, chapters 68–70.
HS Code 6903: common questions
What is HS code 6903?
HS code 6903 is the Harmonized System heading for refractory ceramic goods such as retorts, crucibles, muffles, nozzles, tubes and slide gates. It sits in Chapter 69, ceramic products, in Section XIII.
What is the HS code for crucibles?
Crucibles are named in heading 6903.
What is the difference between HS 6902 and 6903?
6903 covers other refractory goods, such as retorts, nozzles and plugs.
Which code applies to refractory goods made of siliceous fossil meals?
They are excluded from 6903. Look at heading 6901, which covers ceramic goods of siliceous fossil meals or similar siliceous earths.
Which code should I use for carbon-rich refractory goods?
If the carbon share is lower, test the alumina share for 690320, then fall back to 690390.
See what your buyers are buying.Then decide.
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