Acessórios Buttweld soldados de aço inoxidável 904L


Stainless Steel 904L Buttweld Fittings

Stainless Steel 904L Buttweld Fittings are known for their high resistance to pitting, corrosão intersticial, corrosão sob tensão, and intergranular corrosion. These features make them suitable for use in severe corrosive conditions. They are often used in environments such as those found in the petrochemical, químico, farmacêutico, and oil industries.

Welded buttweld fittings refer to fittings that are manufactured by welding the components together. They are typically made by taking a pipe or tube and welding an end cap, redutor, or other fittings onto it. The welding process ensures a strong and leak-proof connection.

Stainless Steel 904L is a non-stabilized low carbon high alloy austenitic stainless steel, which is widely used in applications where the corrosion properties of AISI 316L and AISI 317L are not adequate. The addition of copper to this grade gives it corrosion resistant properties superior to the conventional chrome-nickel stainless steels, in particular to phosphoric, sulfuric and acetic acids.

When it comes to ANSI B16.9 Stainless Steel 904L Welded Buttweld Fittings, it means that the fittings are manufactured according to the ANSI B16.9 standard using Stainless Steel 904L material. These fittings would have undergone welding processes to join the components together.

Tipicamente, ANSI B16.9 Stainless Steel 904L Welded Buttweld Fittings are available in various types, such as elbows, camisetas, redutores, caps, and stub ends, entre outros. They are designed to withstand high-pressure and high-temperature applications commonly found in industries like oil and gas, processamento químico, e geração de energia.

It’s important to note that while ANSI B16.9 provides standard dimensions and tolerances for these fittings, other specifications such as wall thickness, faixa de tamanho, and material grades may vary based on the manufacturer or specific project requirements. The Stainless Steel 904L Welded Buttweld Fittings adhere to this standard. These fittings are suitable for a wide range of applications in industries such as petrochemical, óleo e gás, e geração de energia.


The ANSI B16.9 Stainless Steel 904L Welded Buttweld Fittings are available in a wide range of sizes, from 1/8” NB TO 48” NB. The thickness can vary, with options such as 5s, 10é, 40é, 80é, 10, 20, 40, DST, 60, 80, XS, 100, 120, 140, 160, and XXS available. These fittings are fully compliant with the NACE MR 01-75 padrão.

Notas Equivalentes

There are several equivalent grades to Stainless Steel 904L, and these include:

  • WNR 1.4539
  • UNS N08904
  • SUS 904L


  • Tamanho: 1/8”OBSERVAÇÃO PARA 48”OBSERVAÇÃO. (desatado & 100% Soldado por Raio X, Fabricado)
  • Padrões: ASME/ANSI B16.9, ASME B16.28, MSS-SP-43
  • Grossura: 5é, 10é, 40é, 80é, 10, 20, 40, DST, 60, 80, XS, 100, 120, 140, 160, XXS disponível com NACE MR 01-75
  • Tipo: desatado / Soldado / Fabricado

Composição química

Nota C Mn E P S Cr Mo Em N
904eu máx.. 0.20 máx.. 2.00 máx.. 1.00 máx.. 0.045 máx.. 0.035 19.0 – 23.0 4.00 – 5.00 23.00 – 28.00 0.10 – 0.25

Propriedades mecânicas

Nota Resistência à tracção (MPa) min Força de rendimento 0.2% Prova (MPa) min Alongamento (% em 50mm) min Dureza: Rockwell B. (RH B) máx. Brinell (HB) máx.
904eu 490 220 35 70-90 típica

Notas Equivalentes

Nota UNS Não Old British Euronorm Swedish SS JIS japonês
904eu N08904 904S13 X1NiCrMoCu25-20-5 1.4539 SUS 904L

The above information provides a detailed overview of the specifications, composição química, propriedades mecânicas, and equivalent grades for Stainless Steel 904L Buttweld Fittings. This data can be useful in selecting the appropriate materials for various industrial applications, ensuring that the materials will perform effectively under the specified operating conditions.

6 comentários

  • bahis siteleri inc

    202322 de dezembro no pm6:37

    What are the benefits of 904L stainless steel?

    • Ronsun2023

      202322 de dezembro no pm8:58

      A primary feature of 904L is its very good corrosion resistance in dilute sulphuric acid across the full range of concentrations up to 35° C. It also has useful resistance to a number of other inorganic acids, but its performance may be limited when halide ions are present.

    • Ronsun2023

      2024年3月24日 no pm12:58

      Alloy 904L (UNS N08904) is a superaustenitic stainless steel that is designed for moderate to high corrosion resistance in a wide range of process environments. The combination of high chromium and nickel content, coupled with additions of molybdenum and copper, assure good to excellent corrosion resistance.

    • Ronsun2023

      2024年3月24日 no pm12:57

      This is critical for some applications, but 316L is more than enough for most luxury watchmaking. Type 904L contains more chromium, molibdênio, and nickel than 316L. No entanto, it also contains some copper, manganês, and silicon, which enhances corrosion resistance.

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