Stainless steel for corrosive environments not mentioned? I get it's an advert for Marshall's new PVC line but come on... It's an alternative, not the norm.
Galvanising puts two dissimilar metals together and this will cause a galvanic reaction that will with time “eat” the zinc. If it is near the sea then the process is accelerated. Steel boats are fitted with sacrificial anodes for this reason. Galvanising steel improves corrosion protection it does not prevent it completely. Also remember that if you drill a hole in galvanised steel, you are removing the zinc protection at the hole.
11:15 So using stainless steel cable ties for the purposes of stopping cables falling into walkways in the event of a fire would cause the cable tray to fail due to corrosion. What is the solution to this conundrum?
Stainless steel for corrosive environments not mentioned? I get it's an advert for Marshall's new PVC line but come on... It's an alternative, not the norm.
Galvanising puts two dissimilar metals together and this will cause a galvanic reaction that will with time “eat” the zinc. If it is near the sea then the process is accelerated. Steel boats are fitted with sacrificial anodes for this reason. Galvanising steel improves corrosion protection it does not prevent it completely. Also remember that if you drill a hole in galvanised steel, you are removing the zinc protection at the hole.
11:15 So using stainless steel cable ties for the purposes of stopping cables falling into walkways in the event of a fire would cause the cable tray to fail due to corrosion.
What is the solution to this conundrum?
Yeah it's a good point to be fair, it could become a problem if it was a damp atmosphere. Maybe plastic coated steel banding in that instance? 🤔
Not saying it's wrong but never yet seen stainless reacted with galv. Think it must be very slow
Used stainless steel in a salt water environment it got ate,,,grp outlived it ___