1.4539 Pipe and Tube

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A312 UNS N08904 904L Seamless Pipe

1.4539 or 904L Pipe And Tube

  • Grade:904L, 1.4539, N08904, X1NiCrMoCu25-20-5
  • OD: 6mm-630mm, 1/4"-24"
  • WT: 0.7mm-30mm, Sch 10S-Sch XXS
  • Length: Fixed or random length as specified
  • Specifications: A312, A213, A269, A249, A358, B677, B673, B674, EN10216-5
  • Delivery Condition: Annealed and Pickled, Birght Annealed, Mechanical Polished, Electric Polished
  • Mill Certificate: EN 10204 3.1, EN10204 3.2
  • Marking: Continuosly stenciled as specified.
  • Packing: In bundle or plywood cases with end caps
  • Manufacturing: Seamless, Welded


904L is a multipurpose 20 Cr - 4.3 Mo high corrosion resistance austenitic stainless steel with PREN ≥ 34, Due to combined additions of chromium (20%), molybdenum (4.3%), copper (1.5%) combined with its high nickel content, the grade is recommended for most applications dealing with medium to severe corrosive solutions.

Chemical Composition:

% C Mn P S Si Cr Ni Mo Cu N Fe
Min - - - - - 19 23 4 1 - balance
Max 0.02 2 0.04 0.03 1 23 28 5 2 0.1 balance

Mechanical Property:

20°C Tensile Strength Yield Strength Elongation % Hardness Density
Min 490Mpa 215Mpa 35% - 8.05kg/dm3
Max - - - 90HRB 8.05kg/dm3


>Phosphoric acid, fertilizers, phosphate industries >Sour gas applications
>Sulphuric acid solutions and hydrometallurgy >Pollution control equipments
>Saline solutions and, seawater applications >Chemical plants

Range of Products:

Plates / Sheets / Coil Heavy Plate
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Con Reducer / Ecc Reducer
Con Tee / Ecc Tee / Cross
Coupling / Cap
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Raised Face Slip On Flanges
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Seamless U-Tube
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Bar Round Bar
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