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904L,UNS N08904,WNR 1.4539 Stainless Steel Tube

A312_904L_Seamless_Pipe_1_4539_N08904
  • A312_904L_Seamless_Pipe_1_4539_N08904
  • ASTM A213 TP904L Super Austenitic Stainless Steel Tubing
  • ASTM A312 TP904L Super Austentic Stainless Steel Tube
  • ASTM A269 UNS N08904 COLD DRAW SEAMLESS STAINLESS STEEL TUBE
  • 904L,UNS N08904,WNR 1.4539 Stainless Steel Tube
  • 904L,UNS N08904,WNR 1.4539 Stainless Steel Tube
  • 904L,UNS N08904,WNR 1.4539 Stainless Steel Tube
  • 904L,UNS N08904,WNR 1.4539 Stainless Steel Tube
  • COLD ROLLING
  • BRIGHT ANNEALING
  • 904L,UNS N08904,WNR 1.4539 Stainless Steel Tube
Model No.︰-
Brand Name︰-
Country of Origin︰-
Unit Price︰US $ 8.8 / Kg
Minimum Order︰500 Kg
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Product Description

904L is a high-alloy austenitic stainless steel with low carbon content. The grade is intended for use under severe corrosive conditions. It has been application proved over many years and was originally developed to resist corrosion in dilute sulfuric acid. It is standardized and approved for pressure vessel use in several countries. Structurally, 904L is fully austenitic and is less sensitive to precipitation ferrite and sigma phases than conventional austenitic grades with high molybdenum content. Characteristically, due to the combination of relatively high contents of chromium, nickel, molybdenum and copper 904L has good resistance to general corrosion, particularly in sulfuric and phosphoric conditions.

DESIGN FEATURES
Good resistance to pitting and crevice corrosion.
Very good resistance to stress corrosion cracking.
Good resistance to intergranular corrosion.
Good formability and weldability.
Maximum service temperatures of
450 deg.C. (824 deg.F).

TYPICAL APPLICATIONS
Production and transport of sulfuric acid
Metal pickling in sulfuric acid
Production and concentration of phosphoric acid
Use in seawater, brackish water, condensers, heat exchangers and pipe work in general
Paper and allied industries
Gas washing
Chemical and pharmaceutical industries

 

Physical Properties of Super Austenitic 904L Alloys in the Annealed Condition at -20°F to +100°F      
      Tensile Strength Yield Strength                  
Alloy UNS Designation Spec. psi MPa ksi psi MPa ksi Elongation in 2 in. (min.) % Grain Size Req. Max. Hardness Modulus of Elasticity (x106 psi) Mean Coefficient of Thermal Expansion (IN./IN./°F x 10-6) Thermal Conductivity (BTU-in/ ft2-h-°F)      
904L N08904 A249, A312 71,000 490 71 31,000 215 31 35 90 Rb 28 8.5 79      
904L N08904 B673, B674 71,000 490 71 31,000 215 31 35 8.5 79      
Composition of Super Austenitic 904L tubing and pipe
Nickel (Ni) Chromium (Cr) Iron (Fe) Carbon (C) Max. Nitrogen (N) Max. Silicon (Si) Max. Sulphur (S) Max. Phosphorous (P) Max. Molybdenum (Mo) Titanium (Ti) Max. Aluminum (Al) Max. Cobalt (Co) Max. Tungsten (W) Vanadium (V) Max. Copper (Cu) Max. Manganese (Mn) Max. Niobium (Nb) plus Tantalum Other Elements
23.0 – 28.0 19.0 – 23.0 Bal. 0.02 0.1 1 0.035 0.045 4.0 – 5.0 1.00 – 2.00 2
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
Product Image

A312_904L_Seamless_Pipe_1_4539_N08904
A312_904L_Seamless_Pipe_1_4539_N08904

ASTM A213 TP904L Super Austenitic Stainless Steel Tubing
ASTM A213 TP904L Super Austenitic Stainless Steel Tubing

ASTM A312 TP904L Super Austentic Stainless Steel Tube
ASTM A312 TP904L Super Austentic Stainless Steel Tube

ASTM A269 UNS N08904 COLD DRAW SEAMLESS STAINLESS STEEL TUBE
ASTM A269 UNS N08904 COLD DRAW SEAMLESS STAINLESS STEEL TUBE





COLD ROLLING
COLD ROLLING

BRIGHT ANNEALING
BRIGHT ANNEALING


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