NC1241 Incoloy 825 (Alloy 825, UNS N08825) plate/sheet

Incoloy 825 (Alloy 825, UNS N08825) Plate/Sheet Description:

The Incoloy alloy series is produced by Special Metals Corporation. It consists of Nickel–Iron–Chromium alloys used in applications that demand resistance to corrosion and high operating temperatures. Incoloy alloys differ in composition from Inconel alloys, thereby resulting in variations in their application parameters.
Alloy 825 is a Nickel–Iron–Chromium alloy with additions of Molybdenum, Copper and Titanium. Its chemical composition yields resistance against a range of corrosive environments. The Nickel content is sufficient to mitigate chloride ion stress corrosion. Nickel, in combination with Molybdenum and Copper, enhances resistance in reducing environments such as sulphuric and phosphoric acid. Molybdenum contributes to resistance against pitting and crevice corrosion. The Chromium content confers resistance towards various oxidising agents including nitric acid, nitrates and oxidising salts. The Titanium addition stabilises the alloy through appropriate heat treatment, thereby reducing sensitivity to intergranular corrosion.

Other Trade Names: Alloy 825, Nickelvac 825, Nicrofer 4241

Incoloy 825 (Alloy 825, UNS N08825) Plate/Sheet Specifications:

Metal type: UNS N08825
Standard: ASTM B424, BS 3072NA16, BS 3073NA16, ASTM B906, DIN 17750, ISO 6208, VdTÜV 432

Chemical Composition, %.

Incoloy 825 (Alloy 825, UNS N08825) Plate/Sheet Applications:

- In sulphuric acid pickling equipment, including heating coils, tanks, boxes, baskets and chains
- Dissolvers for fuel elements
- Components for offshore pipeline systems and pipes for sour gas service
- Seawater-cooled heat exchangers
- Applications in the paper industry, such as tube heaters
- Pipelines for moist sulphur dioxide gas
- Plants for the production of phosphoric acid, including heat exchangers, evaporators and washers
- LPG (liquefied petroleum gas) processing facilities, including air-cooled heat exchangers