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Application of Incoloy 825(UNS S08825) High Pressure Tube Fittings

High Pressure Tube Fittings

Incoloy 825 (UNS S08825) Tube Fittings is highly resistant to corrosion. It has a high nickel content, sufficient to resist chloride ion stress corrosion cracking, and a very stable austenite structure. The levels of molybdenum and copper enable the alloy to resist reducing agents and acids. Chromium gives resistance to oxidising conditions, such as nitric acid solutions, nitrates and oxidising salts. The alloy is titanium stabilised to resist pitting and intergranular attack after fabrication, particularly welding, which includes heating in the critical sensitisation temperature range (650°C – 760°C).

Alloy 825 Tube Fittings offers exceptional resistance to corrosion by sulphuric and phosphoric acids and is often the most cost effective alloy in sulphuric acid service.

Characteristics:‚Äč

  • Excellent resistance to reducing and oxidizing acids
  • Good resistance to stress-corrosion cracking
  • Satisfactory resistance to localized attack like pitting and crevice corrosion
  • Very resistant to sulfuric and phosphoric acids
  • Good mechanical properties at both room and elevated temperatures up to approximately 1020° F
  • Permission for pressure-vessel use at wall temperatures up to 800°F

Applications:

  • Pollution-control
  • Oil and gas well piping
  • Nuclear fuel reprocessing
  • Components in Pickling equipment like heating coils, tanks, baskets and chains
  • Acid production
  • Sulphuric acid piping and vessels
  • Phosphoric acid evaporators
  • Pickling tank heaters, pickling tanks and equipment
  • Chemical process equipment
  • Propellor shafts
  • Tank Trucks
  • Calorifiers
  • Electrostatic precipitator electrodes
  • Hot vessels for food, water and seawater
  • Ammonium sulphate vessels
  • Expansion bellows
  • Marine exhaust systems
  • Power station ash hoppers

Tech Tubes & Fittings deals in a variety of Tube Fittings, Valves, Pipe Fittings and Flanges manufactured from High Performance Alloys.

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Monel, Hastelloy, Inconel, Incoloy, SMO254, Nitronic, PH Alloy, AL6XN, Tungsten, Stellite, Sanicro, Tantalum, Molybdenum, Zirconium, Nimonic , Alloy A286, Invar, Alloy 20, Cupronickel Cu Ni 70-30, Brass are the trademarks of their respective companies

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