Alloy 825 / W 2.4858 / UNS N08825

Alloy 825 is an austenitic nickel-iron-chrome alloy with the addition of molybdenum, copper and titanium. It was developed to offer extraordinary corrosion resistance in both oxidation and reduction environments. This alloy is able to withstand chloride stress corrosion on crevices and pits.

Due to the addition of titanium, Alloy 825 is stabilised to prevent sensibilisation in its welded state, meaning it is able to withstand intercrystalline attacks after exposure to temperatures in a range that would cause sensibilisation for unstabilised stainless steel sensors. The manufacturing process for Alloy 825 is typical for alloys containing nickel, that result in materials being easily formable and weldable using a variety of techniques.

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Applications of Alloy 825

✓ Offshore
✓ Heat exchangers
✓ Chemical industry
✓ Phosphoric acid and sulphuric acid factories
✓ Nuclear industry
✓ Foodstuffs production equipment
✓ Waste processing

If you have questions about Alloy 825, our specialists would be happy to help.

Ruud van de Mortel is our leading specialist when it comes to this material. With his extensive expertise, Ruud will help you make the right choice so that the offer you are made is based on the right information and you are able to start making headway on your project.

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Alloy 825 material

Alloy 825 material consists of:
• Material number 2.4858
• NiCr21Mo
• UNS N08825

View our full range of Alloy 825 seamless pipes.

Popular pipes with quality standard Alloy 825 / W 2.4858 / UNS N08825