Tubes, pipes and hollow profiles, of steel

CPC v2.1 Code: 4128

About tubes, pipes and hollow profiles, of steel

cpc code 4128 covers the production of tubes, pipes, and hollow profiles made from steel. This industry plays a crucial role in various sectors, including construction, manufacturing, and infrastructure development. Steel tubes and pipes are essential components in a wide range of applications, from plumbing and heating systems to oil and gas pipelines, making them a vital part of the broader economy.

Production process

The main production techniques used in this industry involve the shaping and forming of steel into hollow, cylindrical structures. This can be achieved through processes such as seamless tube rolling, welding, and extrusion. Manufacturers may also employ heat treatment and other finishing techniques to enhance the properties and performance of the final products.

Production inputs

The key inputs required for the production of steel tubes and pipes include raw steel materials, such as billets, slabs, or coils, as well as specialized machinery and equipment for the various shaping and forming processes. Additionally, energy sources, such as electricity or natural gas, are necessary to power the production facilities.

Production outputs

The primary outputs of this industry are steel tubes, pipes, and hollow profiles, which are then consumed by a wide range of other industries. These products may be used in 4220 Plumbing, heating, and air-conditioning equipment, 2711 Iron and steel basic industries, 2721 Tubes, and 4520 Construction, among others, highlighting the interconnectedness of the steel industry within the broader economy.

Family tree for tubes, pipes and hollow profiles, of steel

    graph LR
    A["<a href='/classifications/cpc/v2-1/4'>4: Metal products, machinery and equipment</a>"]
A --> B["<a href='/classifications/cpc/v2-1/41'>41: Basic metals</a>"]
B --> C["<a href='/classifications/cpc/v2-1/412'>412: Products of iron or steel</a>"]
C --> D["<a href='/classifications/cpc/v2-1/4128'>4128: Tubes, pipes and hollow profiles, of steel</a>"]

    C --> E["<a href='/classifications/cpc/v2-1/4121'>4121: Flat-rolled products of steel, not further worked than hot-rolled</a>"]
C --> F["<a href='/classifications/cpc/v2-1/4122'>4122: Flat-rolled products of steel, not further worked than cold-rolled</a>"]
C --> G["<a href='/classifications/cpc/v2-1/4123'>4123: Flat-rolled products of steel, further worked than hot-rolled or cold-rolled; flat-rolled products of silicon-electrical and high-speed steel, whether or not further worked</a>"]
C --> H["<a href='/classifications/cpc/v2-1/4124'>4124: Bars and rods, hot-rolled, of iron or steel</a>"]
C --> I["<a href='/classifications/cpc/v2-1/4125'>4125: Angles, shapes and sections, not further worked than hot-rolled, hot-drawn or extruded, of iron or non-alloy steel; sheet piling of steel; welded angles, shapes and sections, of steel; railway or tramway track construction material of steel</a>"]
C --> J["<a href='/classifications/cpc/v2-1/4126'>4126: Bars, rods, angles, shapes and sections, cold-processed or further worked, of iron or steel; angles, shapes and sections, hot-rolled, hot-drawn or extruded, of alloy steel; steel wire</a>"]
C --> K["<a href='/classifications/cpc/v2-1/4127'>4127: Bars and rods of high-speed steel and silico-manganese steel; hollow drill bars and rods of steel</a>"]
C --> L["<a href='/classifications/cpc/v2-1/4129'>4129: Tubes, pipes and hollow profiles of cast-iron and cast-steel and related fittings; tube or pipe fittings of steel other than cast</a>"]

    D --> M["<a href='/classifications/cpc/v2-1/41281'>41281: Line pipe of a kind used for oil or gas pipelines, seamless, of steel</a>"]
D --> N["<a href='/classifications/cpc/v2-1/41282'>41282: Casing, tubing and drill pipe, of a kind used in the drilling for oil or gas, seamless, of steel</a>"]
D --> O["<a href='/classifications/cpc/v2-1/41283'>41283: Other tubes and pipes, of circular cross-section, seamless</a>"]
D --> P["<a href='/classifications/cpc/v2-1/41284'>41284: Tubes and pipes, of non-circular cross-section and hollow profiles, seamless, of steel</a>"]
D --> Q["<a href='/classifications/cpc/v2-1/41285'>41285: Line pipe of a kind used for oil or gas pipelines, welded, of steel</a>"]
D --> R["<a href='/classifications/cpc/v2-1/41286'>41286: Casing and tubing, of a kind used in the drilling for oil or gas, welded, of steel</a>"]
D --> S["<a href='/classifications/cpc/v2-1/41287'>41287: Other tubes and pipes, of circular cross-section, welded, of steel</a>"]
D --> T["<a href='/classifications/cpc/v2-1/41288'>41288: Tubes and pipes, of non-circular cross-section, welded, of steel</a>"]
D --> U["<a href='/classifications/cpc/v2-1/41289'>41289: Other tubes and pipes, such as open seam, riveted or similarly closed</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 level1
class B level2
class C level3
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 level5
class N level5
class O level5
class P level5
class Q level5
class R level5
class S level5
class T level5
class U level5

  class D 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 D highlight