Global Alloys supplies all nickel alloys for high technology uses, in collaboration with leading European steel mills, manufacturers and distributors we are able to supply every product intended for industries such as: aerospace, aeronautics, defence, racing, energy, oil & gas, purification plants and exchangers, petrochemical and chemical plants.
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Alloy 690
Other specifications: INCONEL® alloy 690; UNS N06690/ W. Nr. 2.4642
It is a nickel alloy with a high chromium content having excellent resistance in aqueous and corrosive environments and high temperature atmospheres. In addition to its corrosion resistance, alloy 690 has good metallurgical stability, characteristics suitable for machining
The chemical composition of INCONEL 690 alloy The substantial chromium content gives the alloy exceptional resistance to oxidation of chemicals and high-temperature oxidizing gases. The high level of nickel provides resistance to stress corrosion cracking in chloride-containing environments as well as sodium hydroxide solutions.
INCONEL 690 is offered in the form of
- Bars
- Forged
Main application of elements in Alloy 690
- Elements in contact with nitric/hydrofluoric acid solutions.
- Elements of combustion gas turbines
- Elements used in the production and heating of nitric acid
- Batteries and tanks for nitric/fluorhydric solutions used in pickling stainless steels
- Treatment of nuclear fuels
- The resistance of the alloy to sulfur-containing gases coal gasification units and sulfur-containing gases, burners and ducts for processing sulfuric acid, refineries for oil processing
