What are your thoughts gents about the pitting and crevice resistance of the cheaper 5A and 6A (CE3MN, CD3MWCuN) Duplex vs. the AL6XN, 254SMO (CN3MN,CK3MCuN).It is for pumps and valves in a desalination plant. So I asume seawater. The PRN or CPT in the literature is fairly similar especially if...
Before winter we supplied some CF8M "posts" for building entrance protection (9/11....). We cast them and sold them here in Boston. I just got a call saying that the side facing the road is rusting. I have yet to take a ride over there but I was wondering if you guys have any input? The parts...