Bromine water corrosion of stainless steel

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I am designing a grating system to line a fountain that contains about 5ppm bromine in the water, and I'm wondering if 316L will be sufficient enough to withstand corrosion. If not, I have heard that fluoropolymer coatings can help. would a fluoropolymer-based powder coating do the trick?

Jason Trask
engineer - New Brighton, MN