Tag Archives: PTFE screws for hydrofluoric acid corrosion

Monel Better than Nickel 200 for HF Corrosion

Posted on June 16, 2020 by dean

Monel HF vs Nickel Alloys revisedQ: Will Nickel 200 bolts be a good choice for hydrofluoric acid? A: For aqueous HF, Nickel 200 fasteners offer limited protection. If application requires a metal then you may want to consider Monel 400. Monel 400 bolts are the most resistant option for hydrofluoric acid in all concentrations up … Continue reading →

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PTFE and Monel Fasteners for Hydrofluoric Acid

Posted on April 20, 2020 by dean

Q: I need a material that is resistant to a small concentration of hydrofluoric acid at room temperature? Can you offer any suggestions? A: Two materials come to mind. First in terms of metal alloys Monel 400 bolts are resistant to most concentrations of hydrofluoric acid. If you prefer a … Continue reading →

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