Nace Sp0170 Pdf

Indirectly. New austenitic stainless steel that has never been in high-temperature service is not sensitized and does not require soda ash washing during its first shutdown. However, after the first service cycle above the sensitization range, SP0170 becomes applicable.

: Neutralizes any formed acids using a soda-ash (sodium carbonate) solution. Dry Nitrogen Purging nace sp0170 pdf