Monel Better than Nickel 200 for HF Corrosion

Posted on June 16, 2020 by dean

Q: 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 to the boiling point. If metals aren’t required, then engineered polymers like PVDF / PTFE fasteners also offer excellent protection to HF.

Monel HF vs Nickel Alloys revised

This entry was posted in Application, Corrosion Resistance, Engineered Polymer Fasteners, FAQs, Material, Specialty Metal Fasteners, Technical Questions and tagged , , , , , , , , , , , , , , , , , . Bookmark the permalink.

Leave a Reply

Your email address will not be published. Required fields are marked *

Questions?

Our material experts are ready to help guide you through your specific application.

Contact an Expert