Use of Corten steel in pressure vessel
Use of Corten steel in pressure vessel
(OP)
Are there any reasons not to use Corten steel on a pressure vessel? Can it be painted/powder coated/zinc plated just like 1020? It's very strong and cheap, seems like a good way to pack extra strength into a vessel almost for free (?)





RE: Use of Corten steel in pressure vessel
cheers,
gr2vessels
RE: Use of Corten steel in pressure vessel
RE: Use of Corten steel in pressure vessel
gr2vessels
Well done, LOL!!
RE: Use of Corten steel in pressure vessel
RE: Use of Corten steel in pressure vessel
Every pressure vessel code in the world has developed a set of rules which allow safe and lasting use of the pressure vessels. If the train carriage made of Corten plate has developed a hole on the side, too bad, they'll patch it up. A vessel can be fabricated of Corten, but nobody will guarantee you that it will perform like the "approved" materials, you won't be able to use it on a plant with safety regulations. Would you stay next to it during the hydrotest after being told the vessel cannot be guaranteed to retain pressure? Would you use it on your plant, hoping that it won't hapen today, maybe not even tomorrow...Just look up to the ASME VIII history, takes only 5 minutes reading..
cheers,
gr2vessels
RE: Use of Corten steel in pressure vessel
If I remember right, Corten has about the same tensile strength as A516-70, and wouldn't offer any great advantages over it in terms of strength. And unless prices have changed since I last checked, Corten isn't any cheaper, either.
I have heard of paint problems with it, but have no first-hand experience. Perhaps it's harder to get a proper surface profile with it.
RE: Use of Corten steel in pressure vessel
There is just a little more to the whole affair.
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1210.....but will give you the general idea.
Corten works really good for Railroad Coal Cars and so forth. If you look up the ASTM spec. A-588 and you will see why it is not PVQ.
RE: Use of Corten steel in pressure vessel
The detail design and inspection program should be major concerned.
RE: Use of Corten steel in pressure vessel
In particular, it drills and bends and shears and punches like it's full of hard little rocks. Which I think is kind of a redneck description of its microstructure. Doesn't sound like pressure vessel material to me.
Also note that it's specifically intended to go unpainted, and is not at all resistant to pinhole corrosion under paint.
And it's normally delivered with a tough, adherent mill scale that doesn't make a good basis for paint or welding and is difficult to remove.
Mike Halloran
Pembroke Pines, FL, USA
RE: Use of Corten steel in pressure vessel
rmw
RE: Use of Corten steel in pressure vessel