Tube or pipe fittings (e.g. couplings, elbows, sleeves), of iron or steel

HS v2017 Code: 7307

About tube or pipe fittings (e.g. couplings, elbows, sleeves), of iron or steel

HS code 7307 covers a diverse range of tube and pipe fittings, including couplings, elbows, and sleeves, all made of iron or steel. These components play a crucial role in the construction, maintenance, and repair of various piping systems used across numerous industries, from oil and gas to water and sewage infrastructure. As an integral part of the broader metal products and machinery sector, the 7307 industry is a key enabler of economic activity and development worldwide.

Production process

The production of tube and pipe fittings under HS code 7307 typically involves a combination of metalworking techniques, such as casting, forging, and machining. Manufacturers may use processes like stamping, bending, and welding to shape the raw materials, which are often steel or cast iron, into the desired fittings. Quality control and testing procedures are essential to ensure the safety and reliability of these components, which are often subject to high pressure and stress in their end-use applications.

Production inputs

The main inputs required for the production of HS code 7307 items include steel or cast iron raw materials, as well as specialized machinery and equipment for metalworking, such as casting molds, forging presses, and CNC machining centers. Additionally, the industry relies on a skilled workforce capable of operating these production technologies and adhering to rigorous quality standards.

Production outputs

The primary outputs of the HS code 7307 industry are a wide range of tube and pipe fittings, including couplings, elbows, tees, reducers, and sleeves. These components are essential for the construction, maintenance, and repair of piping systems used in various sectors, such as 2501 Oil and Gas, 2502 Water and Sewage, and 2503 Construction. The outputs of this industry are often consumed by manufacturers and installers of these piping systems, as well as by maintenance and repair service providers.

Family tree for tube or pipe fittings (e.g. couplings, elbows, sleeves), of iron or steel

    graph LR
    A["<a href='/classifications/hs/v2017/73'>73: Iron or steel articles</a>"]
A --> B["<a href='/classifications/hs/v2017/7307'>7307: Tube or pipe fittings (e.g. couplings, elbows, sleeves), of iron or steel</a>"]

    A --> C["<a href='/classifications/hs/v2017/7301'>7301: Iron or steel sheet piling, whether or not drilled, punched or made from assembled elements; welded angles, shapes and sections, of iron or steel</a>"]
A --> D["<a href='/classifications/hs/v2017/7302'>7302: Railway or tramway track constructions of iron or steel; rails, check and track rails, switch blades, crossing frogs, point rods, sleepers, fish-plates, chair wedges, sole plates, bedplates, ties and the like</a>"]
A --> E["<a href='/classifications/hs/v2017/7303'>7303: Tubes, pipes and hollow profiles, of cast iron</a>"]
A --> F["<a href='/classifications/hs/v2017/7304'>7304: Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel</a>"]
A --> G["<a href='/classifications/hs/v2017/7305'>7305: Iron or steel (excluding cast iron); tubes and pipes (e.g. welded, riveted or similarly closed), having circular cross-sections, external diameter of which exceeds 406.4mm, not seamless</a>"]
A --> H["<a href='/classifications/hs/v2017/7306'>7306: Iron or steel (excluding cast iron); tubes, pipes and hollow profiles (not seamless), n.e.c. in chapter 73</a>"]
A --> I["<a href='/classifications/hs/v2017/7308'>7308: Structures of iron or steel and parts thereof; plates, rods, angles, shapes, sections, tubes and the like, prepared for use in structures</a>"]
A --> J["<a href='/classifications/hs/v2017/7309'>7309: Reservoirs, tanks, vats and similar containers; for any material (excluding compressed or liquefied gas), of iron or steel, capacity exceeding 300l, whether or not lined or heat insulated</a>"]
A --> K["<a href='/classifications/hs/v2017/7310'>7310: Tanks, casks, drums, cans, boxes and similar containers, for any material (excluding compressed or liquefied gas), of iron or steel, capacity not exceeding 300l, whether or not lined or heat-insulated</a>"]
A --> L["<a href='/classifications/hs/v2017/7311'>7311: Containers for compressed or liquefied gas, of iron or steel</a>"]
A --> M["<a href='/classifications/hs/v2017/7312'>7312: Stranded wire, ropes, cables, plaited bands, slings and the like, of iron or steel, not electrically insulated</a>"]
A --> N["<a href='/classifications/hs/v2017/7313'>7313: Barbed wire of iron or steel; twisted hoop or single flat wire, barbed or not and loosely twisted double wire, of a kind used for fencing, of iron or steel</a>"]
A --> O["<a href='/classifications/hs/v2017/7314'>7314: Cloth (including endless bands), grill, netting and fencing, of iron or steel wire; expanded metal of iron or steel</a>"]
A --> P["<a href='/classifications/hs/v2017/7315'>7315: Chain and parts thereof, of iron or steel</a>"]
A --> Q["<a href='/classifications/hs/v2017/7316'>7316: Anchors, grapnels and parts thereof, of iron or steel</a>"]
A --> R["<a href='/classifications/hs/v2017/7317'>7317: Nails, tacks, drawing pins, corrugated nails, staples (not those of heading no. 8305) and the like, of iron or steel, with heads of other material or not, but excluding articles with heads of copper</a>"]
A --> S["<a href='/classifications/hs/v2017/7318'>7318: Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter-pins, washers (including spring washers) and similar articles, of iron or steel</a>"]
A --> T["<a href='/classifications/hs/v2017/7319'>7319: Sewing and knitting needles, bodkins, crochet hooks, embroidery stilettos and similar articles, for use in the hand, of iron or steel; safety pins and other pins of iron or steel, not elsewhere specified or included</a>"]
A --> U["<a href='/classifications/hs/v2017/7320'>7320: Springs and leaves for springs, of iron or steel</a>"]
A --> V["<a href='/classifications/hs/v2017/7321'>7321: Stoves, ranges, grates, cookers (those with subsidiary boilers for central heating), barbecues, braziers, gas-rings, plate warmers and similar non-electric domestic appliances and parts, of iron or steel</a>"]
A --> W["<a href='/classifications/hs/v2017/7322'>7322: Radiators for central heating, not electrically heated and parts thereof, of iron or steel; air heaters, hot air distributors not electrically heated, with motor fan or blower</a>"]
A --> X["<a href='/classifications/hs/v2017/7323'>7323: Table, kitchen, other household articles and parts, of iron or steel; iron or steel wool; pot scourers and scouring or polishing pads, gloves and the like, of iron or steel</a>"]
A --> Y["<a href='/classifications/hs/v2017/7324'>7324: Sanitary ware and parts thereof, of iron or steel</a>"]
A --> Z["<a href='/classifications/hs/v2017/7325'>7325: Iron or steel; cast articles</a>"]
A --> BA["<a href='/classifications/hs/v2017/7326'>7326: Iron or steel; articles, n.e.c. in chapter 73</a>"]

    B --> BB["<a href='/classifications/hs/v2017/730711'>730711: Cast iron; cast fittings, of non-malleable cast iron</a>"]
B --> BC["<a href='/classifications/hs/v2017/730719'>730719: Iron or steel; cast fittings, other than of non-malleable cast iron</a>"]
B --> BD["<a href='/classifications/hs/v2017/730721'>730721: Steel, stainless; tube or pipe fittings, flanges, of stainless steel</a>"]
B --> BE["<a href='/classifications/hs/v2017/730722'>730722: Steel, stainless; tube or pipe fittings, threaded elbows, bends and sleeves</a>"]
B --> BF["<a href='/classifications/hs/v2017/730723'>730723: Steel, stainless; tube or pipe fittings, butt welding fittings</a>"]
B --> BG["<a href='/classifications/hs/v2017/730729'>730729: Steel, stainless; tube or pipe fittings, n.e.c. in item no. 7307.2</a>"]
B --> BH["<a href='/classifications/hs/v2017/730791'>730791: Iron or steel; tube or pipe fittings, flanges, other than stainless steel</a>"]
B --> BI["<a href='/classifications/hs/v2017/730792'>730792: Iron or steel; tube or pipe fittings, threaded elbows, bends and sleeves, other than stainless steel</a>"]
B --> BJ["<a href='/classifications/hs/v2017/730793'>730793: Iron or steel; tube or pipe fittings, butt welding fittings, other than stainless steel</a>"]
B --> BK["<a href='/classifications/hs/v2017/730799'>730799: Iron or steel; tube or pipe fittings, n.e.c. in item no. 7307.9, other than stainless steel</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 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 BC level6
class BD level6
class BE level6
class BF level6
class BG level6
class BH level6
class BI level6
class BJ level6
class BK 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