Grok.com: "What is the best website for metal finishing questions and answers?"

finishing.com -- The Home Page of the Finishing Industry

-----

304SS with H2S

Hello all,

I wish to know if 304SS is compatible with H2S in a normal range of <100 °C. I do not know the actual content nor concentration of H2S in process application. Thank you in advance for your comments.

Jerri N.
- London, England
2003

300 series stainless steels are know to stress crack when exposed to sulfides.

Don Baudrand
Consultant - Poulsbo, Washington
(Don is co-author of "Plating on Plastics" [on Amazon or AbeBooks affil links]
and "Plating ABS Plastics" [on Amazon or eBay or AbeBooks affil links])
2003

It depends upon a lot of things, of course. Is the H2S an impurity or part of the product that you are housing in the 304ss? If it is an impurity it may be possible to put something in the tank to drop out the sulfide as a solid precipitate without affecting your process.

Small concentrations may not be a problem. How long is the process going before you do PM? Is this a tank or vessel of some kind? Make sure it is diked.

Lee Kremer
Stellar Solutions, Inc.

McHenry, Illinois

2003

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories: