904L(N08904) austenitic alloy

904L(N08904)  austenitic alloy 

• Introduction
  • 904L is an austenitic alloy designed  for middle to high level of corrosion resistance. The alloy contains high  levels of chromium and nickel with additions of molybdenum and copper to  provide added corrosion resistance. The high nickel (25%) and molybdenum  (4.5%) contents of 904L provide good resistance to chloride stress corrosion  cracking, general and chloride pitting corrosion resistance above the levels  of 316 and 317 stainless. The copper addition in 904L provides added  resistance to hot phosphoric acid and dilute sulfuric acid.
• Characters of 904L(N08904)  austenitic alloy 
  • • Very good  resistance to uniform corrosion
  • • Good to  exceptionally good resistance to pitting and crevice corrosion
  • • Very good  resistance to various types of stress corrosion cracking
  • • Very good ductility
  • • Good weldability
  • • Excellent  formability
• Applications of 904L(N08904)  austenitic alloy 
  • • Process equipment in chemical industry
  • • Bleaching equipment in the pulp and paper industry
  • • Flue gas cleaning
  • • Desalination
  • • Seawater handling
  • • Hydrometallurgy
  • • Food and beverage
  • • Pharmaceuticals
  • • Heat exchangers
• Equal grades
  • N08904, 1.4539
• Chemical composition  (%)
  • Carbon   0.02%  max    
  • Chromium      19.00-23.00%
  • Manganese    2.00% max    
  • Nickel     23.00-28.00%
  • Silicon     1.00% max    
  • Molybdenum  4.00-5.00%
  • Phosphorous  0.045% max  
  • Copper   1.00-2.00%
  • Sulphur   0.035% max
• Standards of 904L(N08904)  austenitic alloy 
  • ASME SB-625, ASME SB-649, ASME SB-673, ASME SB-674, ASME SB-677
• Forms available  at A-one Alloy
  • Sheet, plate, wire, rod, bar, pipe,  tube
• Delivery of 904L(N08904)  austenitic alloy 
  • Plenty of bar in stock. Please contact  A-one Alloy for delivery of other products.