Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods; other than those of siliceous fossil meals or similar siliceous earths

HS v2017 Code: 6902

Chapter	Heading	Sub-heading
69	02	n/a

Code	6902
Version	HS v2017
Hierarchy Level	4
Datasource	WCO
Chapter	69

Ancestor Codes: Ceramic products

This Code: Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods; other than those of siliceous fossil meals or similar siliceous earths

Child Codes: Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods; containing by weight more than 50% of alumina (Al2o3), of silica (SiO2) or of a mixture or compound of these; Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods; n.e.c. in item no. 6902.1 or 6902.2; Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods; containing by weight, singly or together, more than 50% of the elements Mg, Ca or Cr, expressed as MgO, CaO or Cr2o3

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; 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; 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 refractory bricks, blocks, tiles and similar refractory ceramic constructional goods; other than those of siliceous fossil meals or similar siliceous earths

HS code 6902 covers a range of refractory ceramic materials used in construction and industrial applications. These specialized products are essential for high-temperature environments, providing heat resistance, durability, and thermal insulation. The refractory industry plays a crucial role in supporting various sectors, including steel, cement, glass, and petrochemicals, by enabling the production of critical infrastructure and equipment.

Production process

The production of refractory bricks, blocks, and tiles typically involves a multi-step process. Raw materials, such as clay, silica, and alumina, are carefully selected and blended to achieve the desired chemical and physical properties. The mixture is then formed into the desired shapes using techniques like pressing, extrusion, or casting. After shaping, the products undergo drying and high-temperature firing, often in specialized kilns, to achieve the necessary strength, density, and heat resistance.

Production inputs

The refractory industry relies on a range of raw materials, including 2508 Natural clays, 2510 Natural calcium phosphates, natural aluminum calcium phosphates and phosphatic chalk, 2516 Granite, sandstone and other monumental or building stone, and 2519 (Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered) magnesia, whether or not containing small quantities of other oxides added before sintering; other magnesium oxide). Additionally, the industry utilizes specialized machinery and equipment for the various production stages, such as mixing, forming, and firing.

Production outputs

The primary outputs of the refractory industry are 6902 Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods; other than those of siliceous fossil meals or similar siliceous earths. These products are widely used in the construction of furnaces, kilns, and other high-temperature industrial equipment, as well as in the production of 6901 (Bricks, blocks, tiles and other ceramic goods of siliceous fossil meals (for example, kieselguhr, tripolite or diatomite) or of similar siliceous earths) and 6903 (Other refractory ceramic goods (for example, retorts, crucibles, muffles, nozzles, plugs, supports, cupels, tubes, pipes, sheaths and rods), other than those of siliceous fossil meals or of similar siliceous earths).

Family tree for refractory bricks, blocks, tiles and similar refractory ceramic constructional goods; other than those of siliceous fossil meals or similar siliceous earths

    graph LR
    A["<a href='/classifications/hs/v2017/69'>69: Ceramic products</a>"]
A --> B["<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 --> 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/v2017/6903'>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 --> 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/v2017/690210'>690210: Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods; containing by weight, singly or together, more than 50% of the elements Mg, Ca or Cr, expressed as MgO, CaO or Cr2o3</a>"]
B --> P["<a href='/classifications/hs/v2017/690220'>690220: Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods; containing by weight more than 50% of alumina (Al2o3), of silica (SiO2) or of a mixture or compound of these</a>"]
B --> Q["<a href='/classifications/hs/v2017/690290'>690290: Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods; n.e.c. in item no. 6902.1 or 6902.2</a>"]


    %% Color coordination by level

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    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
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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