corrosion rate on carbon steel
corrosion rate on carbon steel
(OP)
Hi,
I'm searching for a approximate corrosion rate on carbon steel (SA-516 Gr. 70) in contact with 5 to 7% of H2S and Hydrogen at 70F/50 PSIG.
Thanks in advance,
hcjulien
I'm searching for a approximate corrosion rate on carbon steel (SA-516 Gr. 70) in contact with 5 to 7% of H2S and Hydrogen at 70F/50 PSIG.
Thanks in advance,
hcjulien





RE: corrosion rate on carbon steel
S.
Metal Corrosion
RE: corrosion rate on carbon steel
RE: corrosion rate on carbon steel
Cheers,
gr2vessels
RE: corrosion rate on carbon steel
Your definition of corrosion doesn't work in all cases. Corrosion of steel isn't tied to strictly aqueous, thought this is most prevalent form.
We have processes that completely destroys steel by actually putting the steel in solution, not a water solution. Another part of the process would take a material, SS, that was perfectly suitable for holding a boiling aqueous solution and the minute you dehydrated the solution and melted the solute it would dissolve the SS in a heartbeat. The temperature was 260C and there was no analyzable water or oxygen.
The corrosion one metal by another, molten.
RE: corrosion rate on carbon steel
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04
RE: corrosion rate on carbon steel
Julien has had a specific question, not a generic one. As Steve has noted, at the given temperatuer and pressure, non of the H2S and Hydrogen would affect the mentioned boiler plate. I'm merely pointing that a bit of the research prior to asking this specific question would have been helpful to Julien, particularly when he was aware of the gas only environment, at low pressure and at about ambient temperature. Obviously, every engineer should have some basic understanding of corrosion, in order to be able of reading/understanding NACE, API and other related publications and standards. A straight answer of black or white would not help, nor would encourage him to read about this vast topic. I stand however, corrected for over simplifying the "corrosion" to a mere crust of rust on the boiler plate.
Cheers,
gr2vessels
RE: corrosion rate on carbon steel
I don't think that "tell him to read the definition of corrosion" is a good approach if someone ask u a question on corrosion.
I'm a corrosion engineer and i think that i've been asked this question at least two times a weeks in the last 4 years..
There are only few engineer even in an engineering company that have a background on corrosion, even the fundamental concepts..
I've never said "read the definition of corrosion and go away...", ..This is not my approach maybe your is different...
S.
Metal Corrosion
RE: corrosion rate on carbon steel
h
RE: corrosion rate on carbon steel
As I stand corrected, it seems that I'm wrong to encourage the younger ones to do some research before posting a question.
On the other hand, is it the role of this forum to provide quick fixes to someone or to give him/her the oportunity to learn by opening them a wider door than a simple answer. I support the later.
cheers,
gr2vessels
RE: corrosion rate on carbon steel
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04