Stainless steel to A615 rebar
Stainless steel to A615 rebar
(OP)
In the field, the contracter cut a headed stud off of a stainless steel embed plate due to a conflict with another bar. To remedy the situation, the contractor is proposing to weld a piece of rebar on the bottom of the plate to compensate for the missing stud. I have checked everything, and structurally it is ok, however, I was wondering if the dissimilar metals will pose a problem. The plate will be exposed to weather, however the face where the weld has occurred will be embedded in the concrete.
I have read that this type of welding can lead to corrosion, however if a galvanizing repair paint was used, would this be ok??
I have read that this type of welding can lead to corrosion, however if a galvanizing repair paint was used, would this be ok??






RE: Stainless steel to A615 rebar
RE: Stainless steel to A615 rebar
RE: Stainless steel to A615 rebar
Or better yet you can buy what are called Deformed Bar Anchors - ASTM A108 AND A 496 (Fy = 70 KSI)
RE: Stainless steel to A615 rebar
On the corrosion issue- you often see information that says attaching dissimilar metals can lead to corrosion, but seldon if ever see anything that says how much or how fast, or whether it will be a problem in your lifetime. Seems like I have read that galvanized items shouldn't be attached to stainless, so I would avoid the galvanizing repair paint- just use plain epoxy if anything.
Seems like some A615 isn't easily weldable- make sure they have that covered.
RE: Stainless steel to A615 rebar
RE: Stainless steel to A615 rebar
I have a pretty good paper on galvanic corrosion at the office. I will tell you the reference when I get in this morning.
RE: Stainless steel to A615 rebar
I don't have an article name or reference on this article, but if you have an email I would be glad to email it to you. It is a very good article and has the galvanic series chart that Packerfan references.
Also, I mis-spoke earlier when I said the galvanic corrosion would not be an issue. I only looked at it one way, not both ways. Packerfan is correct, I would not weld these two together (for more than just the weldability aspects).