Alloy 825

Nickel Alloys

Alloy 825

Alloy 825 (N08825) is a titanium-stabilised nickel-chromium-iron-molybdenum-copper alloy designed for use in extremely corrosive environments. It has a very high resistance to oxidation and outstanding resistance to stress corrosion cracking in chloride conditions. It achieves good mechanical properties from cryogenic to medium-high temperatures (540oC) and can be significantly strengthened through cold working.

Alloy 825 (N08825) is resistant to pitting corrosion in sulphuric and phosphoric acids and resists attack in strongly oxidising media such as nitrates, nitric acid and oxidising salts. It also resists most organic acids and alkali solutions. The alloy is reasonably ductile and can be worked in a similar way to austenitic stainless steels.

Related Specifications of Alloy 825

  • NA16
  • N08825
  • BS3076
  • 2.4858
  • WFe32C20DU (FR)
  • NiCr21Mo (DE)

Nominal Composition of Alloy 825

Ni 42.0%, Fe 30.0%, Cr 21.5%, Mo 3.0%, Cu 2.2%

Mechanical Properties of Alloy 825

Ultimate Tensile Strength (N/mm²) Proof Stress (N/mm²) Elongation (%) Hardness (HB)
590 220 30

Key Features of Alloy 825

  • Excellent corrosion resistance
  • High resistance to oxidation
  • Good ductility and workability

Applications of Alloy 825

Chemical processing | Phosphoric acid evaporators; pickling-tank heaters, pickling hooks and equipment, and chemical process equipment

Power generation | Components for spent nuclear fuel element recovery

Other | Tank trucks and propeller shafts

Columbia Metals – a leading supplier of Alloy 825

With decades of experience and a huge range of stock, Columbia Metals is an industry leader in the supply of Alloy 825 and other high quality specialist engineering alloys.

To buy or learn more about Alloy 825 contact us now, or fill in the enquiry form on the right hand side and we will be in touch shortly.

  Related Specifications Mechanical Properties
Alloy Name BS UNS BS EN Others Ultimate Tensile Strength N/mm² Minimum Yield Strength N/mm² Elongation % Hardness HB  
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