Common trade names include alloy 825, UNS N08825. INCOLOY ® 825 is a registered trade name of Special Metals Corporation.
Incoloy 825 is a Nickel-iron-chromium blend alloy that has additions of titanium, copper and molybdenum.
Incoloy 825 Properties
This alloy was designed for excellent corrosion resistance in extreme environments. The molybdenum properties give Incoloy 825 good pitting and crevice corrosion resistance.
The nickel and molybdenum combined gives incredible resistance to reducing environments, particularly those with phosphoric and sulfuric acids present. It is commonly used within the Chemical industry.
Titanium adds appropriate resistance in areas of temperature increase. Standard machining operations can be used with Incoloy 825. (Pictured) Incoloy 825 aqueous corrosion chart, showing the resistance levels against forms of aqueous corrosion.
Incoloy 825 Applications
Incoloy 825 is popular due to its overall properties, price and availability. Alloy 825 holds a resistance to a range of oxidising substances such as nitric acid. It can retain strength from cryogenic temperatures up to an impressive 400C and higher.
- Chemical processing
- Oil and Gas
- Acid production
Incoloy 825 Tube Fittings
Popular size tube fittings in the alloy 825 material are currently in stock. Raw material is held to readily make-to-order. Compression fittings include bulkhead couplings, tees, elbows and adaptors, both single and double ferrule.
Standard sizing of our fittings in Incoloy 825 is up to 1” or 25mm tube OD.
Bespoke solutions can be provided when large quantities of Incoloy 825 tube and tubing components are needed.
Incoloy 825 Tube
3 metres is our standard and most popular tube length. Incoloy 825 tube can be supplied with your 825 fittings and valves for a complete set, ready for installation.
Note: Purchases must comply with the guidelines for material selection within your industry or sector.
The application of Incoloy 825 compression fittings, tube fittings and instrumentation must comply with Health and Safety regulation.
Do not interchange Waverley Brownall products with other manufactured materials or components. Our compression fittings are not interchangeable with other branded or non-branded fittings or valves. The mixing of alloys is not recommended.
Other considerations on material selection include:
- Operating conditions
- Internal media
- Pressure, temperature and intended use of application
Incoloy 825 Industry Specifications
INCOLOY Alloy 825 is designated as UNS N08825 and Werkstoff Number 2.4858. It is listed in NACE MR0175 for oil and gas service. Alloy 825 is available as tube fittings, pipe components and tube from Waverley Brownall.
Specifications for Incoloy 825 Pipe and Tube are; BS 3074NA16, ASTM B 163, ASTM B 423, ASTM B 704, ASTM B 705, ASTM B 751, ASTM B 775, ASTM B 829, ASME SB 163, ASME SB 423, ASME SB 704, ASME SB 705, ASME SB 751, ASME SB 775, ASME SB 829, ASME Code Case 1936, DIN 17751, VdTÜV 432, ISO 6207