zlacker

"Last I checked stainless rebar was ~3x the cost of regular rebar"

But it's 5-10% of the total building cost, and if you bump that to 20% the corrosion goes from "always' to "probably never"

>>Clumsy+(OP)
if you need to weld the rebar into cages (like you often do) then the cost goes up even more as welding ss is harder.

But you're not wrong in general. There will still be corrosion in the concrete eventually but less likely from rebar oxidation.

>>LegitS+n2
Welding rebar is almost never used in North American building construction, and is actually forbidden in high seismic zones.

But then again so is stainless steel rebar and carbon fibre rebar and most of these other types of products because they lack ductility

>>ggcdn+c5
This is kind of what I was thinking while reading comments here.

I'm sure stainless rebar is easy to make. We could turn out huge amounts of it. But I don't see it ever having the same useful properties. All manner of stainless I've worked with is incredibly stiff and hard compared to regular steel. It's actually desirable in most applications, but rebar in particular needs to be flexible.