304L Passivation
304L Passivation
(OP)
I once read that stainless steel naturally passivates and that chemical passivation is more cosmetic than necessay to develop a passive layer.
Is this true?
If a 304L pipe has been exposed internally to salt water and then the saltwater removed and the pipe is refilled with jet fuel, will any corrosion damage to the passive layer be self restoring?
Note when the jet fuel is introduced into the pipe, the piping will be thoroughly flushed and filtered to remove water and dirt from the fuel.
Thanks
Is this true?
If a 304L pipe has been exposed internally to salt water and then the saltwater removed and the pipe is refilled with jet fuel, will any corrosion damage to the passive layer be self restoring?
Note when the jet fuel is introduced into the pipe, the piping will be thoroughly flushed and filtered to remove water and dirt from the fuel.
Thanks





RE: 304L Passivation
How long was the ID exposed to saltwater? Was it flowing constantly? Did you perform any checks for ID pitting or weld cracks?
RE: 304L Passivation
RE: 304L Passivation