Nace Sp0170 Pdf 2021 ((top)) -

NACE SP0170 (Standard Practice) provides guidelines for the Protection of Austenitic Stainless Steels and Other Austenitic Alloys from Polythionic Acid Stress Corrosion Cracking (PTA SCC) During Shutdown of Refinery Equipment The current version of this standard was published in (revising the 2012 edition) by (the organization formed by the merger of NACE and SSPC). Key Focus of NACE SP0170-2021

Significance of NACE SP0170 PDF 2021

3. Hardness Testing Protocols

Hardness is the single most important indicator of SSC resistance. The 2021 PDF introduces more stringent maximum hardness values for heat-affected zones (HAZ) in welds, especially for components exposed to H₂S partial pressures above 10 psi. nace sp0170 pdf 2021

: Ensuring that equipment remains sealed or pressurized with an inert gas if it cannot be immediately cleaned or neutralized. How to Access the PDF NACE SP0170 (Standard Practice) provides guidelines for the

“Before standards like SP0170 existed, we saw unexplained cracking in units that had just come offline for maintenance,” says a senior metallurgical consultant. “It was counterintuitive. The equipment was fine while running, but broke while sitting still.” The 2021 PDF introduces more stringent maximum hardness