CNAE 2431-8/00 · Brazil
Produção de tubos de aço com costura
105 active companies in the Brazilian CNPJ registry have this CNAE as their main activity. Look up companies and explore their distribution by state and city.
Source: Receita Federal, CNPJ Open Data · October 2026 publication
What this list shows
We count each active company in the Brazilian CNPJ registry once, by its head office and this CNAE as its main activity. Branches and secondary activities are excluded from this scope. The total describes the registry, not market revenue or company quality.
- Active companies
- 105
- 1,126th of 1,329 activities
- Opened in 12 months
- 4
- 1,160th by openings
- Of every 100 companies in the country
- 0.0
- do this activity
- Openings per 100 active
- 4
- in the country: 21
Active companies in this activity
More active establishments and higher registered capital first. This order is not a quality assessment or recommendation.- TUPER S/ASão Bento do Sul (SC)
- PERFILADOS RIO DOCE LTDALinhares (ES)
- PERFIPAR MANUFATURADOS DE ACO LTDAColombo (PR)
- CONFAB INDUSTRIAL SOCIEDADE ANONIMAPindamonhangaba (SP)
- HIPERFERRO INDUSTRIAL DE ACOS LTDACruz das Almas (BA)
- AMAZON ACO INDUSTRIA E COMERCIO LTDA.Manaus (AM)
- EBSE ENGENHARIA DE SOLUCOES S.ARio de Janeiro (RJ)
- TUBERFIL INDUSTRIA E COMERCIO DE TUBOS LTDAIndaiatuba (SP)
- KROMINOX ACOS E METAIS LTDA - EM RECUPERACAO JUDICIALBarueri (SP)
- APOLO TUBULARS S/ALorena (SP)
- APOLO TUBOS E EQUIPAMENTOS S/ARio de Janeiro (RJ)
- CLADTEK DO BRASIL INDUSTRIA E COMERCIO DE TUBOS E REVESTIMENTOS LTDARio de Janeiro (RJ)
How to assess a company's data
When you open a company's record, use these guides to check the data and understand what each field can establish.
- How to look up a CNPJ
Check identifiers, dates and registry fields against official sources.
- What an active CNPJ means
Active status does not show that a company is debt-free, licensed or able to operate.
- How to read partner and administrator records
Understand QSA roles and the limits on ownership and representation information.
Where the companies are
Weight in each federative unit: of every 100 active companies, how many have this main activity
- 0.0
- 0.0
- 0.0
- 0.0
- 0.0
Federative units with the most companies
- 1 São Paulo 50
- 2 Rio de Janeiro 10
- 3 Ceará 9
- 4 Minas Gerais 6
- 5 Santa Catarina 4
- 6 Bahia 3
- 7 Alagoas 2
- 8 Amazonas 2
- 9 Espírito Santo 2
- 10 Pernambuco 2
See the 18 federative units
- 11 Paraná 2
- 12 Goiás 1
- 13 Maranhão 1
- 14 Mato Grosso 1
- 15 Pará 1
- 16 Paraíba 1
- 17 Rio Grande do Sul 1
- 18 Sergipe 1
Cities with the most companies
active companies by head office
- 1 São Paulo (SP) 11
- 2 Guarulhos (SP) 6
- 3 Rio de Janeiro (RJ) 5
- 4 Piracicaba (SP) 5
- 5 Fortaleza (CE) 4
- 6 Caucaia (CE) 3
- 7 Itaquaquecetuba (SP) 3
- 8 São Caetano do Sul (SP) 3
- 9 Manaus (AM) 2
- 10 Barra de São Miguel (AL) 2
See the 29 cities
- 11 Belo Horizonte (MG) 2
- 12 Campos dos Goytacazes (RJ) 2
- 13 Volta Redonda (RJ) 2
- 14 Franco da Rocha (SP) 2
- 15 Itapevi (SP) 2
- 16 Ribeirão Preto (SP) 2
- 17 São Bento do Sul (SC) 2
- 18 Ananindeua (PA) 1
- 19 São Luís (MA) 1
- 20 Cascavel (CE) 1
- 21 Palhano (CE) 1
- 22 Bayeux (PB) 1
- 23 Cabo de Santo Agostinho (PE) 1
- 24 Paulista (PE) 1
- 25 Santana do Paraíso (MG) 1
- 26 Nossa Senhora do Socorro (SE) 1
- 27 Cruz das Almas (BA) 1
- 28 Paripiranga (BA) 1
- 29 Santo Antônio de Jesus (BA) 1
What activity 2431-8/00 is
- Section C — Indústrias de transformação
- Division — Metalurgia
- Group — Produção de tubos de aço, exceto tubos sem costura
- Class — Produção de tubos de aço com costura
What it covers
- A produção de tubos de aço com costura e seus acessórios. Os tubos com costura são fabricados com tiras de aço que se formam e se soldam
- A produção de conexões
What it does not cover
- A produção de tubos de aço sem costura (2423-7/01)Classified under: 2423-7/01 Produção de tubos de aço sem costura
- A produção de tubos de aço fundidos, trefilados, retrefilados, flexíveis, etc. (2439-3/00)Classified under: 2439-3/00 Produção de outros tubos de ferro e aço
Typical activities
- Fabricação de acessórios para tubos ou canos de aço com costura
- Fabricação de tubos, canos e perfis ocos de aço, com costura, não especificados
- Produção de tubos de aço com costura utilizados em gasodutos ou oleodutos
- Produção de tubos de aço com costura utilizados na prospeção de petróleo e gás
- Produção de tubos e canos de aço com costura, inclusive conexões
Frequently asked questions about CNAE 2431-8/00
How many CNAE 2431-8/00 companies are there in Brazil?
105 active companies have CNAE 2431-8/00 as their main activity, according to the Receita Federal's October 2026 publication. It is 1,126th among the country's activities by companies.
Which federative unit has the most companies in this activity?
São Paulo, with 50. There, 0.0 of every 100 active companies have this main activity, against 0.0 in the national registry.
Does this total include branches and secondary activities?
No. Each active company is counted once, by its head office and registered main activity. A company may carry out this activity as a secondary activity and be excluded from the count. Geographic distribution uses the registered location; records without a recognized federative unit may be counted nationally without appearing in local groups.
Does active status mean a company is qualified for a contract?
No. Active status describes the Receita Federal registration. It does not establish tax compliance, creditworthiness, licences, ability to fulfil a contract or quality. Check the relevant official documents and the contract's requirements.
How we count
Active companies in the Brazilian CNPJ registry with this as their main activity, counted once by head office. Location is taken from the registry. Where available, openings are for the last 12 months, compared with the previous 12 months.