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Doxsteel Fasteners Utilize Nickel Cobalt Alloy Coating ASTM B994 as a Barrier to Hydrogen Embrittlement and Corrosion
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2017-08-08

Once a fastener has seized due to corrosion, the dangerous practice of hot bolting is often the only way for turnaround crews to swap out the bolts. Doxsteel fasteners have been designed to combat corrosion with a Nickel Cobalt alloy coating evenly electroplated onto each thread. A major advantage of the Doxsteel process is that the entire part is electroplated. When painting or hand-spraying the nuts, coatings can be inadequate, especially in areas like the inside thread of the nut. When components are exposed to harsh environmental conditions, this weakness can lead to corrosion and seizing, with compromised integrity of the fastener. The electroplating process can be controlled such that after testing and cleaning, the Doxsteel nuts and bolts are placed in a bath with NiCo (the Nickel Cobalt alloy), the parts are charged, and electrolysis attracts the alloy, ensuring an even coat on the electroplated fasteners. In addition, the nickel cobalt alloy coating ASTM B994 acts as a barrier to hydrogen embrittlement. With a longer fastener life and 100% traceability, Doxsteel Fasteners offer a warranty which guarantees no seizing within 5 years. The average probable fastener life is 21 years. Over time, the return on investment is realized in the lifespan of the fasteners and the predictability in turnaround without the need for hot bolting, which can be expensive and unpredictable in terms of money and time.

 

 Every part of the process from manufacture to delivery has been streamlined and studied to ensure parts live up to their tagline, "The World's Smartest Bolt". For clients looking to source API 20E bolts, all Doxsteel Fasteners comply with API 20E standards and ASTM specifications.

 
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