Rubber; vulcanised (other than hard rubber), tubing, piping and hoses, reinforced or otherwise combined only with metal, without fittings

HS v2022 Code: 400921

About rubber; vulcanised (other than hard rubber), tubing, piping and hoses, reinforced or otherwise combined only with metal, without fittings

HS code 400921 covers a crucial segment of the rubber industry, encompassing vulcanised rubber tubing, piping, and hoses that are reinforced or combined with metal, but without fittings. This category of products plays a vital role in a wide range of industries, from automotive and construction to manufacturing and infrastructure development. The demand for these versatile rubber products is driven by their durability, flexibility, and ability to withstand various environmental conditions, making them indispensable components in numerous applications across the global economy.

Production process

The production of the goods covered by HS code 400921 typically involves a multi-step process of vulcanisation and reinforcement. First, raw rubber is mixed with various additives, such as sulfur and accelerators, to enhance its strength and resistance to wear and tear. The mixture is then heated and pressurised in a vulcanisation process, which cross-links the rubber molecules to create a more durable material. Next, the vulcanised rubber is extruded or molded into the desired shape of tubing, piping, or hoses. Finally, the rubber products may be reinforced with metal, such as wire or mesh, to provide additional strength and support, depending on the intended application.

Production inputs

The key inputs required for the production of goods under HS code 400921 include raw rubber, typically natural or synthetic, as well as various chemical additives used in the vulcanisation process, such as sulfur, accelerators, and fillers. Additionally, the industry relies on specialized machinery and equipment for the extrusion, molding, and reinforcement of the rubber products. Depending on the specific application, the industry may also require metal components, such as wire or mesh, to be integrated into the rubber tubing, piping, or hoses.

Production outputs

The primary outputs of the industry covered by HS code 400921 are vulcanised rubber tubing, piping, and hoses that are reinforced or combined with metal, but without fittings. These products are widely used in a variety of industries, including 870000 Vehicles, 840000 Machinery, 460000 (Pulp of wood or of other fibrous cellulosic material; recovered (waste and scrap) paper or paperboard), and 300000 Pharmaceutical products. The versatility and durability of these rubber products make them essential components in numerous applications, from automotive systems and industrial equipment to medical devices and infrastructure projects.

Revisions to 400921

Classification codes are adjusted frequently. The code may have been revised or replaced between system versions. The table below shows the history (newest to oldest) of the code 400921. The most recent 1 version of this code (400921) is in the HS v2022 system (this version):

This page shows the most recent version of code 400921.

Family tree for rubber; vulcanised (other than hard rubber), tubing, piping and hoses, reinforced or otherwise combined only with metal, without fittings

    graph LR
    A["<a href='/classifications/hs/v2022/40'>40: Rubber and articles thereof</a>"]
A --> B["<a href='/classifications/hs/v2022/4009'>4009: Tubes, pipes and hoses, of vulcanised rubber (other than hard rubber), with or without their fittings (e.g. joints, elbows, flanges)</a>"]
B --> C["<a href='/classifications/hs/v2022/400921'>400921: Rubber; vulcanised (other than hard rubber), tubing, piping and hoses, reinforced or otherwise combined only with metal, without fittings</a>"]

    B --> D["<a href='/classifications/hs/v2022/400911'>400911: Rubber; vulcanised (other than hard rubber), tubing, piping and hoses, not reinforced or otherwise combined with other materials, without fittings</a>"]
B --> E["<a href='/classifications/hs/v2022/400912'>400912: Rubber; vulcanised (other than hard rubber), tubing, piping and hoses, not reinforced or otherwise combined with other materials, with fittings</a>"]
B --> F["<a href='/classifications/hs/v2022/400922'>400922: Rubber; vulcanised (other than hard rubber), tubing, piping and hoses, reinforced or otherwise combined only with metal, with fittings</a>"]
B --> G["<a href='/classifications/hs/v2022/400931'>400931: Rubber; vulcanised (other than hard rubber), tubing, piping and hoses, reinforced or otherwise combined only with textile materials, without fittings</a>"]
B --> H["<a href='/classifications/hs/v2022/400932'>400932: Rubber; vulcanised (other than hard rubber), tubing, piping and hoses, reinforced or otherwise combined only with textile materials, with fittings</a>"]
B --> I["<a href='/classifications/hs/v2022/400941'>400941: Rubber; vulcanised (other than hard rubber), tubing, piping and hoses, reinforced or otherwise combined with materials other than metal or textiles, without fittings</a>"]
B --> J["<a href='/classifications/hs/v2022/400942'>400942: Rubber; vulcanised (other than hard rubber), tubing, piping and hoses, reinforced or otherwise combined with materials other than metal or textiles, with fittings</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 level6
class D level6
class E level6
class F level6
class G level6
class H level6
class I level6
class J level6

  class C 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 C highlight