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Recommended Stainless Steel Alloy for Electrode Hooks

What series SS is recommended for hooks on carbon (graphite) electrodes in an anodic surface activation (etch) tank with solution make-up of sulfuric (25%) and hydrofluoric (4%) acids?

Nick Cortese
airline - Atlanta, Georgia, USA
2006

No SS alloy will withstand nitric/HF for long. Use graphite electrodes which extend up out of the solution and plastisol-coated monel hooks.

Jeffrey Holmes, CEF
Spartanburg, South Carolina
2006

Thanks much Jeffrey.

Nick Cortese
airline - Atlanta, Georgia, USA
2006

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