Ceramic goods; (e.g. retorts, crucibles, muffles, nozzles, plugs, supports cupels, tubes, pipes, sheaths, rods) excluding those of siliceous fossil meals or of similar siliceous earths

HS v2017 Code: 6903

Chapter	Heading	Sub-heading
69	03	n/a

Code	6903
Version	HS v2017
Hierarchy Level	4
Datasource	WCO
Chapter	69

Ancestor Codes: Ceramic products

This Code: Ceramic goods; (e.g. retorts, crucibles, muffles, nozzles, plugs, supports cupels, tubes, pipes, sheaths, rods) excluding those of siliceous fossil meals or of similar siliceous earths

Child Codes: Refractory ceramic goods; containing by weight more than 50% of graphite or other forms of carbon or of a mixture of these products, excluding those of siliceous fossil meals or similar earths; Refractory ceramic goods; composition of which n.e.c. in heading no. 6903, other than those of siliceous fossil meals or similar earths; 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

Sibling Codes (Nearest 5): Bricks, blocks, tiles and other ceramic goods of siliceous fossil meals (e.g. kieselguhr, tripolite or diatomite) or of similar siliceous earths; Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods; other than those of siliceous fossil meals or similar siliceous earths; Ceramic building bricks, floor blocks, support or filler tiles and the like; Roofing tiles, chimney-pots, cowls, chimney liners, architectural ornaments and other ceramic constructional goods; Ceramic pipes, conduits, guttering and pipe fittings

About ceramic goods; (e.g. retorts, crucibles, muffles, nozzles, plugs, supports cupels, tubes, pipes, sheaths, rods) excluding those of siliceous fossil meals or of similar siliceous earths

HS code 6903 covers a diverse range of ceramic goods, including retorts, crucibles, muffles, nozzles, plugs, supports, cupels, tubes, pipes, sheaths, and rods. These specialized ceramic products play a vital role in various industries, from metallurgy and chemical processing to laboratory equipment and industrial furnaces. The global demand for these ceramic goods is driven by their unique properties, such as high heat resistance, chemical inertness, and durability, making them essential components in many industrial processes and applications.

Production process

The production of ceramic goods under HS code 6903 typically involves a multi-step process. First, the raw materials, which may include clay, feldspar, and other mineral additives, are carefully selected and mixed. The mixture is then shaped using techniques such as pressing, extrusion, or slip casting, depending on the specific product. After shaping, the ceramic pieces undergo a drying process to remove moisture. Finally, the dried pieces are fired at high temperatures, often exceeding 1,000°C, to achieve the desired properties and durability.

Production inputs

The main inputs required for the production of ceramic goods under HS code 6903 include various types of clay, feldspar, and other mineral additives. Depending on the specific product, additional raw materials such as graphite, silicon carbide, or alumina may be used. Specialized production equipment, such as kilns, presses, and extrusion machines, are also essential for the manufacturing process.

Production outputs

The ceramic goods produced under HS code 6903 are used in a wide range of industries and applications. These products are often consumed by manufacturers of 8401 Nuclear reactors, 8402 Steam or other vapour generating boilers, 8403 Central heating boilers, and 8404 Auxiliary plant for use with boilers, as well as in the production of laboratory equipment, industrial furnaces, and various chemical processing applications.

Family tree for ceramic goods; (e.g. retorts, crucibles, muffles, nozzles, plugs, supports cupels, tubes, pipes, sheaths, rods) excluding those of siliceous fossil meals or of similar siliceous earths

    graph LR
    A["<a href='/classifications/hs/v2017/69'>69: Ceramic products</a>"]
A --> B["<a href='/classifications/hs/v2017/6903'>6903: Ceramic goods; (e.g. retorts, crucibles, muffles, nozzles, plugs, supports cupels, tubes, pipes, sheaths, rods) excluding those of siliceous fossil meals or of similar siliceous earths</a>"]

    A --> C["<a href='/classifications/hs/v2017/6901'>6901: Bricks, blocks, tiles and other ceramic goods of siliceous fossil meals (e.g. kieselguhr, tripolite or diatomite) or of similar siliceous earths</a>"]
A --> D["<a href='/classifications/hs/v2017/6902'>6902: Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods; other than those of siliceous fossil meals or similar siliceous earths</a>"]
A --> E["<a href='/classifications/hs/v2017/6904'>6904: Ceramic building bricks, floor blocks, support or filler tiles and the like</a>"]
A --> F["<a href='/classifications/hs/v2017/6905'>6905: Roofing tiles, chimney-pots, cowls, chimney liners, architectural ornaments and other ceramic constructional goods</a>"]
A --> G["<a href='/classifications/hs/v2017/6906'>6906: Ceramic pipes, conduits, guttering and pipe fittings</a>"]
A --> H["<a href='/classifications/hs/v2017/6907'>6907: Ceramic flags and paving, hearth or wall tiles; ceramic mosaic cubes and the like, whether or not on a backing; finishing ceramics</a>"]
A --> I["<a href='/classifications/hs/v2017/6909'>6909: Ceramic ware for laboratory, chemical, other technical uses; ceramic troughs, tubs, similar receptacles used in agriculture; ceramic pots, jars and similar used in the conveyance or packing of goods</a>"]
A --> J["<a href='/classifications/hs/v2017/6910'>6910: Ceramic sinks, wash basins, wash basin pedestals, baths, bidets, water closet pans, flushing cisterns, urinals and similar sanitary fixtures</a>"]
A --> K["<a href='/classifications/hs/v2017/6911'>6911: Tableware, kitchenware, other household articles and toilet articles; of porcelain or china</a>"]
A --> L["<a href='/classifications/hs/v2017/6912'>6912: Ceramic tableware, kitchenware, other household articles and toilet articles; other than of porcelain or china</a>"]
A --> M["<a href='/classifications/hs/v2017/6913'>6913: Statuettes and other ornamental ceramic articles</a>"]
A --> N["<a href='/classifications/hs/v2017/6914'>6914: Ceramic articles; n.e.c. in chapter 69</a>"]

    B --> O["<a href='/classifications/hs/v2017/690310'>690310: Refractory ceramic goods; containing by weight more than 50% of graphite or other forms of carbon or of a mixture of these products, excluding those of siliceous fossil meals or similar earths</a>"]
B --> P["<a href='/classifications/hs/v2017/690320'>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</a>"]
B --> Q["<a href='/classifications/hs/v2017/690390'>690390: Refractory ceramic goods; composition of which n.e.c. in heading no. 6903, other than those of siliceous fossil meals or similar earths</a>"]


    %% Color coordination by level

    classDef level1 color:#000,fill:#a8f9ff,stroke:#333,stroke-width:2px
    classDef level2 color:#000,fill:#e0a458,stroke:#333,stroke-width:1px
    classDef level3 color:#000,fill:#419d78,stroke:#333,stroke-width:1px
    classDef level4 color:#000,fill:#c04abc,stroke:#333,stroke-width:1px
    classDef level5 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef level6 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px



  %% Apply classes
  class A level2
class B level4
class C level4
class D level4
class E level4
class F level4
class G level4
class H level4
class I level4
class J level4
class K level4
class L level4
class M level4
class N level4
class O level6
class P level6
class Q level6

  class B highlight

  %% class A level1
  %% class B,C level2
  %% class D,E,F,G,H,I level2
  %% class J,K,L,M,N,O,P level3
  %% class B highlight