Tag Archives: AL6XN

AL6XN vs Monel bolts for salt water and marine use

Posted on November 14, 2017 by dean

Q: Is AL6XN a steel or nickel alloy? Trying to figure out if it would perform as well as Monel in seawater. A: To answer your first question, AL6XN bolts are actually both a nickel and a steel alloy. AL6XN is often described as a high nickel content stainless alloy. Though … Continue reading →

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Nickel Alloys Part 1: Moderate Corrosion

Posted on November 2, 2017 by dean

Nickel alloys are a special class of metals containing high levels of nickel (often greater than 20%). They play a key role in industry for their unique combination of high strength, corrosion resistance to harsh acids (like hydrochloric and sulfuric) and high temperature stability. This two-part newsletter will help summarize the distinct benefits of the … Continue reading →

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AL6XN vs Alloy 20 Fasteners: What’s the difference? Which is best?

Posted on June 1, 2017 by dean

These two alloys are often confused as being almost the same, which is almost true. They are both nickel alloys and share many key characteristics. AL6XN and Alloy 20 are alike in that they each retain their strength to about 1000°F. In addition they both perform well, in salt water environments, … Continue reading →

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Duplex bolts in sea water contaminated steam turbine

Posted on May 24, 2017 by dean

Q: I’m running a steam surface condenser which is installed on a steam turbine in a thermal power station. I’m using sea water that could be contaminated with chemical pollutants cooling water side of the condenser. Any ideas on a good fastener for the tubes and water boxes? A: Duplex 2205 … Continue reading →

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