Etching solution developed for use prior to type-IVc penetrant inspection of Incology(R) 903 weld overlays. Formulated as follows: 80 g ferric chloride hexahydrate, 300 mL reagent-grade hydrochloric acid, 25 mL food- or reagent-grade phosphoric acid, and 100 mL ethylene glycol. Gives more reasonable range of etching time and reduces probability of overetching and resulting damage. Stored indefinitely.


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    Title :

    Prepenetrant Etchant For Incology(R) 903 Weld Overlays


    Contributors:

    Published in:

    Publication date :

    1990-04-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English





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