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Alloy 825

A nickel-iron-chromium grade with addition of molybdenum and copper, Alloy 825 has excellent corrosion resistance.

Alloy 825 is a high performing nickel-iron-chromium alloy with additions of molybdenum, copper, and titanium. The nickel content is sufficient for resistance to chloride-ion stress-corrosion cracking.


Product formSize range fromSize range to
Alloy 825 pipe0.5 in8 in
Alloy 825 round bar10 mm334 mm
Alloy 825 sheet & plate2 mm10 mm
Alloy 825 pipe fittings2 mm10 mm
Alloy 825 flanges2 mm10 mm

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    Pipe Fittings

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    Sheet & Plate

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    Round Bar

Chemical Analysis



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Perfect for applications in the Petrochemical & Refinery sector

Alloy 825 can be used in a variety of applications including:

  • Fuel element dissolvers
  • Sea-water-cooled heat exchangers; offshore product piping systems; tubes and components in sour gas service
  • Heat exchangers, evaporators, scrubbers, dip pipes etc. in phosphoric acid production
  • Air-cooled heat exchangers in petroleum refineries
  • Chemical and Food Processing

About Alloy 825

The nickel in Alloy 825, in conjunction with the molybdenum and copper, gives superb resistance to reducing environments such as those containing sulfuric and phosphoric acids. The molybdenum prevents resistance to pitting and crevice corrosion. The alloy’s chromium content confers resistance to a variety of oxidising substances such as nitric acid, nitrates and oxidising salt.

NeoNickel specialises in supplying high performance metal alloys to a wide variety of industries. As a highly respected European supplier we provide the finest quality heat resistant, corrosion resistant, aerospace, titanium and stainless steel alloys anywhere on the market.



8.14 g/cm³
Melting Range:
Specific Heat Capacity:
440 J/kg.°C
Electrical Resistivity:
1.13 µΩ.m
Poisson's Ratio:
0.29 - 0.34


UNS Number:
ASTM B163, B423, B424, B425, B564, B704, B705, B366, B751, B775, B829
Download the Alloy 825 Data Sheet Download

Request a Quote

Fill in our online form to get a fast quote. Got a technical question? Contact us on techsales@neonickel.com or for more general enquiries please email us at enquiries@neonickel.com