Corrosion of 9% Nickel Steel in Fresh water used for Hydrotest 2

[Nima7]

What are the recommended corrosion preventive methods for 9% Nickel steel LNG tanks during filling for and during hydrotest with an anticipated maximum exposure time of 60 days? Do We Have any Corrosion in fresh water in this Test?

 

[metengr]

I would recommend a corrosion inhibitor if you intend to keep water in the vessels for 60 days. Fresh water means nothing to me other than risk of corrosion - bio, oxygen, chlorides, etc.

 

[stanweld]

We used a film forming, biodegradable, corrosion inhibitor from Cortec.