Tag Archives: C276 bolts for hydrochloric acid

Tantalum Screws for Hydrochloric Acid Resistance

Posted on March 30, 2020 by dean

Q: We currently use Titanium screws, and I would like to know pricing and lead time to replace them with Tantalum screws to improve their resistance to HCL. A: What concentration and temp are you at with the HCl?  See the HCl Iso-Corrosion curve for Hastelloy C276.  Tantalum screws will … Continue reading →

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Hastelloy C276 Bolts or Duplex Bolts for Waste Water HCl Injection

Posted on May 21, 2018 by dean

Q: We’re making some changes in our waste water treatment process and are going to using hydrochloric acid (HCl) as a means of lowering the pH levels. Will I need to upgrade my duplex bolting? A: Assuming your waster water is at ambient temperatures the only thing you need to … Continue reading →

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Inconel 625 vs Hastelloy C276 in Hydrochloric Acid (HCl)

Posted on March 29, 2018 by dean

Q: We are altering the chemicals we use to regulate the pH level of our manufacturing process with hydrochloric acid. I’m using some Inconel 625 bolting – will this work in the HCl too?   A: Inconel 625 bolts offer a high level of corrosion resistance for many acids, may work … Continue reading →

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