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NACE Standard SP0403-2015

Avoiding Caustic Stress Corrosion Cracking of Carbon Steel Refinery Equipment and Piping

This standard practice establishes guidelines to avoid caustic SCC of equipment and piping. It addresses applications that use “fresh” caustic. The practices detailed are specifically intended for handling aqueous solutions containing sodium hydroxide (NaOH), however, several companies extend these practices to include aqueous solutions of other strong alkali compounds such as potassium hydroxide (KOH) and lithium hydroxide (LiOH). This standard is maintained by Task Group 177.

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NACE International [nace]

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