Alloy 825
Hart b.v. is a stockholder and supplier of Alloy 825 products:

• Pipe (seamless and welded in random lengths and cut to size)
• Fittings (BW and forged fittings)
• Flanges (ANSI, DIN, EN, JIS)
• Bar (round, square and hexagonal in random lengths and cut to size)
• Forgings (Discs, Rings and forgings according to drawing)
• Plate (Full plates and cut to size)

Applications Alloy 825:
Alloy 825 is a nickel-iron-chromium alloy with molybdenum and copper added to it. It has excellent resistance to both reducing and oxidizing acids, to stress-corrosion cracking, and to localized attack such as pitting and crevice corrosion. The alloy is especially resistant to sulfuric and phosphoric acids. Used for chemical processing, pollution-control equipment, oil and gas well piping, nuclear fuel reprocessing, acid production, and pickling equipment.

Alloy 825 Equivalents:
Incoloy 825, UNS N08825 and Werkstoffno. 2.4858

Density Alloy 825: 8,18

Chemical analysis Alloy 825:
Nickel - 38,0-46,0%
Chromium - 19,5-23,5%
Iron - 22.0%
Molybdenum 2,5-3,5%
Copper - 1,5-3,0% 
Manganese -  1,0% max.
Carbon - 0,05% max.
Silicon - 0,5% max.
Sulfur -  0,03% max.
Aluminium: 0,2% max.

Alloy 825 ASTM standards:
Bar/Billet - B425
Forgings/Flanges - B564
Seamless Tubing -  B163
Welded Tubing -  B704
Seamless Pipe - B423
Welded Pipe - B705
Plate - B424
Buttweld fittings - B366