Stud bolt corrosion
Stud bolt corrosion
(OP)
Being on the gulf coastal, and the bad location of cooling tower systems in our units. My question is, using standard CS A105 flanges with A193 B7 bolting, is it true that bolts in the flanges act as controller of the rusting problem, and will rust before the flanges, but if hot dipped bolting was used for the flanges the flanges would rust out faster than with A193 b7 bolting?





RE: Stud bolt corrosion
RE: Stud bolt corrosion
flange work is past weldment stage, I have crew sprayers
cover any questionable areas with K200 Metal-Etch Epoxy
primer. This nullifies the 'nobler metal factor' NOW.
I went through the books, 'tried this - tried that, but
now a trouble-free element on my oil barges and my mind is on other matters.
thestocksguy@hotmail.com
RE: Stud bolt corrosion
RE: Stud bolt corrosion
vj
RE: Stud bolt corrosion
I have trouble seeing how it works here - it's a common surface smoother for body work on cars. Nevertheless, the notion of finding a convenient protective coating (none more convenieint than paste in my experience) is valid. Perhaps Negotiator could clear up his mis-statements or provide further help, such as a description of the product? I would expect PPG's DTR (stands for "direct to rust") mastic primers to be a better choice if one wants to stay with PPG products.