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Alloy 825 (UNS N08825) W.Nr. 2.4858 Nickel Alloy Seamless Capillary Pipe For Aero Application
Quick detial:
Material is 825
Size range: OD 1-300mm
WT0.1-6mm
Production method is cold drawn and seamless
Application: For Aero Application
Incoloy 825 is an all-austenitic nickel-iron-chromium alloy stabilized by titanium, with copper and molybdenum added. Incoloy 825 is a general-purpose engineering alloy, which is resistant to acid and alkali metal corrosion in both yangization and reduction environments.
Similar grades of Incoloy825
NS142 (China), NC21FeDu (France), W.N r.2.4858 NiCr21Mo (Germany) NA16 (UK) Incoloy825, UNS NO8825 (USA) NiFe30Cr21Mo3 (ISO)
The high nickel content makes the alloy have effective resistance to stress corrosion cracking. It has good corrosion resistance in various media, such as sulfuric acid, phosphoric acid, nitric acid and organic acids, and alkali metals such as sodium hydrogen yang, potassium hydrogen yang and yan acid solutions. The high comprehensive performance of Incoloy 825 is manifested in nuclear combustion dissolvers with various corrosive media, such as sulfuric acid, nitric acid and sodium hydrogen phosphate, all processed in the same equipment.
Incoloy825 chemical composition
| Nickel Ni | Chromium Cr | Iron Fe | Carbon C | Manganese Mn | Silicon Si | Molybdenum | Copper Cu | Cobalt Co | Aluminum Al | Titanium |
| 38-46 | 19.5-23.5 | margin | ≤0.025 | ≤1.0 | ≤0.5 | 2.5-3.5 | 1.5-3.0 | ≤1.0 | ≤0.2 | 0.6-1.2 |
Incoloy825 alloy characteristics
●Good resistance to stress corrosion cracking
●Good resistance to pitting and crevice corrosion
●Excellent anti-yangization and non-yangization thermal acid performance
●It has good mechanical properties at room temperature and high temperature up to 550℃
●Certification for pressure vessels with manufacturing temperature up to 450℃
Incoloy825 alloy application field
Incoloy 825 is widely used in various industrial fields where the operating temperature does not exceed 550°C.
Typical applications are:
●Heating pipes, containers, baskets and chains used in sulfuric acid pickling plants.
●Sea water cooling heat exchanger, marine product pipeline system, acid gas environment pipeline.
●Heat exchanger, evaporator, washing, dip tube, etc. in phosphoric acid production.
●Air heat exchanger in petroleum refining
●Food Engineering
●Chemical Process
●Flame-retardant alloys for compressed air applications
