DZR METAL
Dezincification of duplex brass , which is a form of corrosion. may occur when in contact with certain aggressive waters. 
Dezincification selectively removes zinc from the alloy, leaving behind a porous. Copper-rich structure that has little mechanical strength. An in service valve suffering from Dezincification has white powdery substance of mineral stains on its exterior surface.
To overcame the problem special copper alloy. Which contain an inhibitor and undergo heat treatment, have been developed which are assistant to corrosion by dezincification. |