Incoloy 825 (For Springs)

Tech Spring Manufacturing Corp. is a high quality Metal Spring Manufacturer in Taiwan, offering Wave Springs, Retaining Rings and Constant Force Spring with good quality and reasonable price.

Incoloy 825 (For Springs)

Incoloy 825 is a Nickel-Iron-Chromium alloy with additions of Molybdenum and Copper. It has excellent resistance to both reducing and oxidising acids, to stress-corrosion cracking and to localised pitting and crevice corrosion.It is also especially resistant to sulphuric and phosphoric acids.
Incoloy 825 is also known as Nicrofer 4221, Superimphy 82 and Ferrochronin 825.


Nickel Base Wire for wire springs, flat springs and wire products

Key Features
  • Resistant to reducing environments such as those containing sulphuric and phosphoric acids
  • Resistant to a variety of oxidising substances such as nitric acid and nitrates
  • Resistant to chloride-ion stress corrosion cracking and, pitting & crevice corrosion
  • Good for chemical processing
Typical Applications

Chemical Processing
Nuclear Fuel Reprocessing
Acid Production
Pickling Equipment

Approx. Operating Temperature

-100 to +250°C
-145 to +480°F

Chemical Composition
ElementNiCrFeMnCCuSiSCoTiAlMo
Min %38.0019.50bal1.500.602.50
Max %46.0023.50bal1.000.053.000.500.032.001.200.203.50
Wire Type
  • Round
  • Flat Wire
  • Shaped Wire
  • Rope/Strand
Specifications
  • ASTM B425
  • BS 3075 NA 16
  • BS 3076 NA 16
  • ISO 15156-3 (NACE MR 0175)
Designations
  • W.Nr 2.4858
  • UNS N08825
  • AWS 022
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