Corrosion resistance of Inconel 718, Inconel X750 and Incoloy A286 with dilute sulphuric acid at 70C

[ballvalveguy]

I am aware that these three metals are not great with sulphuric acid, but I need to specify a spring material that will work in this application. I picked what I consider to be probably the best choices, but if anyone can give me some insight in to which would be the best material to use, I'd appreciate it.

 

[EdStainless]

How dilute?
Have you gone to the Special Metals web site and looked at the data sheets for these alloys?

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P.E. Metallurgy

 

NiDI

"Everyone is entitled to their own opinions, but they are not entitled to their own facts."

 

[TugboatEng]

Does the spring need to be metal?

https://www.plastics.gl/automotive/fiberglassepoxy-composite-coil-spring/