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The standard outlines several proven methods to protect vulnerable alloys during refinery downtime, including the shutdown and startup phases. NACE SP0170-2018 nace sp0170 pdf 2021
Create a traceability matrix linking each component to a specific clause in SP0170-2021. This is your defense during an audit or failure investigation. Would you like a or one-page field summary
With deepwater projects using super-duplex stainless steels and nickel alloys, the 2021 edition adds new limits for: This is your defense during an audit or
: You can purchase or download the PDF through the AMPP Store .
NACE SP0170-2018 remains the active standard for protecting austenitic stainless steels from polythionic acid stress corrosion cracking (PTA SCC) during refinery shutdowns as of 2021, focusing on nitrogen purging and alkaline washing to mitigate risks. The standard, now managed by AMPP, outlines critical procedures for preventing corrosion in sensitized austenitic alloys common in hydrotreating and cracking units. Access the standard through the ANSI Webstore .