[MW:4545] relevance of ferrite number test for duplex SS weld used in structures

Hi,

Duplex SS is mostly used in pressure vessels and ferrite testing is one the important quality test for its welding because mostly it has to perform in corrosive environment with high thermal stresses.
We are using Duplex SS in rolling stock underframe where the environment is not highly corrosive and stresses are present due to static/ dynamic loading only.

Can anybody suggest what is the relevance of ferrite tests done on Duplex SS welds for application in structures.

Regards,

Pankaj Johri,   GradIEAust,
 
 
Please consider the environment before you print / Merci de penser à l'environnement avant d'imprimer

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