Nov 17, 2019 #1 180994 Mechanical Joined Oct 27, 2016 Messages 7 Location MY Dear Expert, I need some advise. I have a Ball Valve A216 WCB Butt Weld with black oxide coating get rust after installation by customer. Is it getting rust due to the welding effect?
Dear Expert, I need some advise. I have a Ball Valve A216 WCB Butt Weld with black oxide coating get rust after installation by customer. Is it getting rust due to the welding effect?
Nov 18, 2019 #2 EdStainless Materials Joined May 20, 2004 Messages 16,361 Location Waukesha WI USA It could make it worse, but the black oxide isn't corrosion resistant. The oil that it is saturated with is what gives you corrosion resistance. = = = = = = = = = = = = = = = = = = = = P.E. Metallurgy, Plymouth Tube Upvote 0 Downvote
It could make it worse, but the black oxide isn't corrosion resistant. The oil that it is saturated with is what gives you corrosion resistance. = = = = = = = = = = = = = = = = = = = = P.E. Metallurgy, Plymouth Tube