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ASTM A268 TP444/TP446, ASTM SB667 904L,N08367 Super Austentic Stainless Tube

  • ASTM A268 TP444/TP446, ASTM SB667 904L,N08367 Super Austentic Stainless Tube
  • ASTM A312 N08904-904L
  • ASTM A268 TP444/TP446, ASTM SB667 904L,N08367 Super Austentic Stainless Tube
  • ASTM A268 TP444/TP446, ASTM SB667 904L,N08367 Super Austentic Stainless Tube
  • ASTM A268 TP444/TP446, ASTM SB667 904L,N08367 Super Austentic Stainless Tube
  • ASTM A268 TP444/TP446, ASTM SB667 904L,N08367 Super Austentic Stainless Tube
  • ASTM A268 TP444/TP446, ASTM SB667 904L,N08367 Super Austentic Stainless Tube
Model No.︰-
Brand Name︰-
Country of Origin︰-
Unit Price︰US $ 8.8 / Kg
Minimum Order︰500 Kg
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Product Description

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

TENSILE REQUIREMENTS
Tensile Strength (KSI) 70
Yield Strength (KSI) 25
KSI can be converted to MPA (Megapascals) by multiplying by 6.895. 



 

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
ASTM A312/358 TP UNS EN 10216-2 Seamless / EN 10217-5 Welded Material No. (WNr)
304 S30400 X5CrNi18-10 1.4301
304L S30403 X2CrNi19-11 1.4306
304H S30409 X6CrNi18-11 1.4948
310 S31000 X15CrNiSi25-21 1.4841
310S S31008 X8CrNi25-21 1.4845
316 S31600 X5CrNiMo17-12-2 1.4401
316L S31603 X2CrNiMo17-2-2 1.4404
316Ti S31635 X6CrNiMoTi17-12-2 1.4571
321 S32100 X6CrNiTi18-10 1.4541
321H S32109 X8CrNiTi18-10 1.4878
347 S34700 X6CrNiNb18-10 1.4550
347H S34709 X8CrNiNb16-13 1.4961
6Mo S31254 X1CrNiMoCuN25-20-7 1.4529
904L N08904 X1NiCrMoCu25-20-5 1.4539
Product Image


ASTM A312 N08904-904L
ASTM A312 N08904-904L






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