Are this really ss304 or just a layer onto of the metal layer? Cause real ss304 or ss303 material can't be rust.

I deal a lot of ss material. Never see it rust before.

I have a ss plate cover the ventilator fan from rain water for 13yrs. Never see it rust at all. I throw those ss scrap material outside that prompt to rain and water. Never see it rust.

I use it to handle chemical. And it can stand for many many yrs.

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Added on August 24, 2011, 12:28 amI deal a lot with titanium too. Titanium is not strong. But have a corrosive resistance and heat resistance.

But in long run, it will slowly eat up too by very corrosive chemical. But better a lot than ss.

This post has been edited by ozak: Aug 24 2011, 12:28 AM

I m getting .

I still don't understand why you guys said ss will rust. it will not rust. Only corrode when expose to strong chemical. What I suspect it will rust is, there is a metal layer beside the ss. If the ss layer scratch or corrode and getting thinner, it will expose the metal layer which will rust. So it depend on the quality and the thickness of the ss/metal plate manufacturing. Since price ss is expensive, the ss layer is getting thinner to cut cost.

I always deal with the ss material for corrosive chemical. If the ss material is rust, I m going to f**k the supplier kau kau. Cause it not really ss material and it is serious problem.

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Added on August 24, 2011, 6:21 pmYeap. Not strong. I have few pcs for you to chew on it. He....

This post has been edited by ozak: Aug 24 2011, 06:21 PM

A pure ss plate is softer and not strong as steel. To reinforce the plate stronger, probally laminate a metal material layer with ss. Ss layer to prevent rust while metal layer to strengthen the plate. In this way too will lower the cost which if using pure ss, would require more thicker plate to have same strength. That cost more.

If you want to experiment ss to see if it will rust, I can give you plenty to try. You want plate form or block form also ada. mostly sus303 and sus304. You want titanium to chew pun ada.

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Added on August 24, 2011, 9:11 pmThat is residue rust from the GI pipe carry by water to the ss tank. Once dried out, leave the rust stain on the surface. That is why when wipeout, nothing there. If really rust, you will find some small rust hole eat into the plate. You can't wipe but need sandpaper to sand the rust.

This post has been edited by ozak: Aug 24 2011, 09:11 PM

Yup, cause those fitting is GI pipe material too.