Brazil NCM · 8-digit code

NCM 7305.31.00 – Longitudinally welded tubes over 406.4 mm

NCM 7305.31.00 (also written 73053100) is Brazil's code for longitudinally welded tubes over 406.4 mm. Its first 6 digits are HS code 7305.31.

Official description of NCM 7305.31.00

PortuguêsOfficial
Soldados longitudinalmente
EnglishUnofficial translation

Iron or steel (excluding cast iron); tubes and pipes (other than line pipe or casing of a kind used for oil or gas pipelines), longitudinally welded, having circular cross-sections, external diameter exceeds 406.4mm, (not seamless)

Nomenclatura Comum do Mercosul (Siscomex). Updated Oct 2026 · In force since Apr 2022 (Res Gecex 272/2021).

How to read NCM 7305.31.00

73Chapter 05Heading 31Subheading

HS code 7305.31
Same in every country

0Item 0Subitem

Added by Mercosur
Brazil, Argentina, Paraguay, Uruguay

The first 6 digits are the international HS code, so their meaning is the same in every country; Brazil publishes the text in Portuguese. The last two digits are 00 because Brazil does not split this HS code further. The full 8-digit code is used on import declarations (DUIMP), invoices (NF-e) and tax filings.

Full classification path

  1. Chapter 73 Iron or steel articles Obras de ferro fundido, ferro ou aço.
  2. Heading 73.05 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 Outros tubos (por exemplo, soldados ou rebitados), de seção circular, de diâmetro exterior superior a 406,4 mm, de ferro ou aço.
  3. Group 7305.3 Other, welded: Outros, soldados:
  4. Subheading 7305.31 Iron or steel (excluding cast iron); tubes and pipes (other than line pipe or casing of a kind used for oil or gas pipelines), longitudinally welded, having circular cross-sections, external diameter exceeds 406.4mm, (not seamless)
  5. Subitem 7305.31.00 Iron or steel (excluding cast iron); tubes and pipes (other than line pipe or casing of a kind used for oil or gas pipelines), longitudinally welded, having circular cross-sections, external diameter exceeds 406.4mm, (not seamless) Soldados longitudinalmente

Questions about NCM 7305.31.00

What is NCM 7305.31.00?

NCM 7305.31.00 (73053100) is the Brazilian (Mercosur) code for longitudinally welded tubes over 406.4 mm. Its official Portuguese description is “Soldados longitudinalmente”.

What is the HS code for NCM 7305.31.00?

HS 7305.31 (Iron or steel (excluding cast iron); tubes and pipes (other than line pipe or casing of a kind used for oil or gas pipelines), longitudinally welded, having circular cross-sections, external diameter exceeds 406.4mm, (not seamless)). The first 6 digits of an NCM code are its international HS code; the last 2 digits are Brazil's own split.

Is an NCM code the same as an HS code?

The first 6 digits are the same in every country. NCM adds an item digit (7th) and a subitem digit (8th). A code ending in 00 means Brazil does not split that HS code further.

Which countries use NCM 7305.31.00?

All Mercosur members use the same NCM codes: Argentina, Brazil, Paraguay and Uruguay.

Source: Siscomex Classif NCM table, updated Oct 2026 (Resolução Gecex nº 926/2026). The Portuguese text is the official one; the English is our translation.