Refractory cements, mortars, concretes and similar compositions; other than products of heading no. 3801

HS v2017 Code: 3816

About refractory cements, mortars, concretes and similar compositions; other than products of heading no. 3801

HS code 3816 covers a range of refractory materials used in construction, metallurgy, and other high-temperature industrial applications. These specialized cements, mortars, and concretes are essential for building and maintaining furnaces, kilns, and other equipment that must withstand extreme heat and harsh conditions. The products under this code play a crucial role in supporting industries such as 6810 Building and construction materials, 7201 Iron and steel, and 8401 Nuclear reactors, boilers, machinery and mechanical appliances, contributing to the overall efficiency and productivity of these sectors.

Production process

Refractory cements, mortars, and concretes are typically produced by carefully blending and processing various raw materials, including clays, silica, alumina, and other mineral compounds. The specific production techniques can vary depending on the desired properties and applications, but often involve high-temperature firing, precise mixing, and specialized curing processes to ensure the final products meet stringent performance requirements.

Production inputs

The main inputs for the production of HS code 3816 materials include a range of mineral resources, such as 2508 Other clays, andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths, 2510 Natural calcium phosphates, natural aluminium calcium phosphates and phosphatic chalk, and 2520 (Gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulphate)) as well as specialized machinery and equipment for high-temperature processing and mixing.

Production outputs

The products classified under HS code 3816 are primarily used as refractory materials in the construction and maintenance of various industrial furnaces, kilns, and other high-temperature equipment. These materials are often consumed by industries such as 6810 Building and construction materials, 7201 Iron and steel, and 8401 Nuclear reactors, boilers, machinery and mechanical appliances, where their ability to withstand extreme heat and harsh conditions is essential for efficient and reliable operations.

Family tree for refractory cements, mortars, concretes and similar compositions; other than products of heading no. 3801

    graph LR
    A["<a href='/classifications/hs/v2017/38'>38: Chemical products n.e.c.</a>"]
A --> B["<a href='/classifications/hs/v2017/3816'>3816: Refractory cements, mortars, concretes and similar compositions; other than products of heading no. 3801</a>"]

    A --> C["<a href='/classifications/hs/v2017/3801'>3801: Artificial graphite; colloidal or semi-colloidal graphite; preparations based on graphite or other carbon in the form of pastes, blocks, plates or other semi-manufactures</a>"]
A --> D["<a href='/classifications/hs/v2017/3802'>3802: Activated carbon; activated natural mineral products; animal black, including spent animal black</a>"]
A --> E["<a href='/classifications/hs/v2017/3803'>3803: Tall oil, whether or not refined</a>"]
A --> F["<a href='/classifications/hs/v2017/3804'>3804: Residual lyes from the manufacture of wood pulp, whether or not concentrated, desugared or chemically treated, including lignin sulphonates, but excluding tall oil of heading no. 3803</a>"]
A --> G["<a href='/classifications/hs/v2017/3805'>3805: Gum, wood or sulphate turpentine, other terpenic oils; crude dipentene; sulphite turpentine, other crude para-cymene; pine oil containing alpha-terpineol as the main constituent</a>"]
A --> H["<a href='/classifications/hs/v2017/3806'>3806: Rosin and resin acids and derivatives thereof; rosin spirit and rosin oils; run gums</a>"]
A --> I["<a href='/classifications/hs/v2017/3807'>3807: Wood tar; wood tar oils; wood creosote; wood naphtha; vegetable pitch; brewers' pitch and similar preparations based on rosin, resin acids or on vegetable pitch</a>"]
A --> J["<a href='/classifications/hs/v2017/3808'>3808: Insecticides, rodenticides, fungicides, herbicides, anti-sprouting products, plant growth regulators, disinfectants and the like, put up in forms or packings for retail sale or as preparations or articles</a>"]
A --> K["<a href='/classifications/hs/v2017/3809'>3809: Finishing agents, dye carriers to accelerate the dyeing, fixing of dyestuffs, other products and preparations, of a kind used in the textile, paper, leather or like industries, n.e.c. or included</a>"]
A --> L["<a href='/classifications/hs/v2017/3810'>3810: Metal-pickling preparations; fluxes etc for soldering, brazing; welding powders, pastes of metal and other materials; preparations used as cores or coatings for welding electrodes or rods</a>"]
A --> M["<a href='/classifications/hs/v2017/3811'>3811: Anti-knock preparations, oxidation and gum inhibitors, viscosity improvers, anti-corrosive preparations and the like, for mineral oils (including gasoline) or other liquids used for the same purposes</a>"]
A --> N["<a href='/classifications/hs/v2017/3812'>3812: Prepared rubber accelerators; compound plasticisers for rubber or plastics, n.e.c. or included; anti-oxidising preparations and other compound stabilisers for rubber or plastics</a>"]
A --> O["<a href='/classifications/hs/v2017/3813'>3813: Preparations and charges for fire extinguishers; charged fire-extinguishing grenades</a>"]
A --> P["<a href='/classifications/hs/v2017/3814'>3814: Organic composite solvents and thinners, not elsewhere specified or included; prepared paint or varnish removers</a>"]
A --> Q["<a href='/classifications/hs/v2017/3815'>3815: Reaction initiators, reaction accelerators and catalytic preparations n.e.c. or included</a>"]
A --> R["<a href='/classifications/hs/v2017/3817'>3817: Mixed alkylbenzenes and mixed alkylnaphthalenes, other than those of heading no. 2707 or 2902</a>"]
A --> S["<a href='/classifications/hs/v2017/3818'>3818: Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics</a>"]
A --> T["<a href='/classifications/hs/v2017/3819'>3819: Hydraulic brake fluids and other prepared liquids for hydraulic transmission, not containing or containing less than 70% by weight of petroleum oils or oils obtained from bituminous minerals</a>"]
A --> U["<a href='/classifications/hs/v2017/3820'>3820: Anti-freezing preparations and prepared de-icing fluids</a>"]
A --> V["<a href='/classifications/hs/v2017/3821'>3821: Prepared culture media for the development or maintenance of micro-organisms (including viruses and the like) or of plant, human or animal cells</a>"]
A --> W["<a href='/classifications/hs/v2017/3822'>3822: Reagents; diagnostic or laboratory reagents on a backing and prepared diagnostic or laboratory reagents whether or not on a backing, other than those of heading no. 3002 or 3006; certified reference material</a>"]
A --> X["<a href='/classifications/hs/v2017/3823'>3823: Industrial monocarboxylic fatty acids; acid oils from refining; industrial fatty alcohols</a>"]
A --> Y["<a href='/classifications/hs/v2017/3824'>3824: Prepared binders for foundry moulds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included</a>"]
A --> Z["<a href='/classifications/hs/v2017/3825'>3825: Residual products of the chemical or allied industries, not elsewhere specified or included; municipal waste; sewage sludge; other residual products.</a>"]
A --> BA["<a href='/classifications/hs/v2017/3826'>3826: Biodiesel and mixtures thereof; not containing or containing less than 70% by weight of petroleum oils or oils obtained from bituminous minerals</a>"]

    B --> BB["<a href='/classifications/hs/v2017/381600'>381600: Refractory cements, mortars, concretes and similar compositions; other than products of heading no. 3801</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
  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 level4
class P level4
class Q level4
class R level4
class S level4
class T level4
class U level4
class V level4
class W level4
class X level4
class Y level4
class Z level4
class BA level4
class BB 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