It is important to note the evolution of this document to ensure you are using the correct version: NACE RP0472-2005 : Previous "Recommended Practice" version. NACE SP0472-2015 : Updated to "Standard Practice". NACE SP0472-2020 : The current active and reaffirmed ANSI Webstore PWHT parameters for a particular welding process?
For industry professionals in petroleum refining, staying current with the latest standards for material integrity is critical. While many still search for , it is important to note that this standard has been redesignated and updated to NACE SP0472 . The current active version is NACE SP0472-2020 , "Methods and Controls to Prevent In-Service Environmental Cracking of Carbon Steel Weldments in Corrosive Petroleum Refining Environments". Overview of NACE SP0472 (Formerly RP0472) nace rp0472 pdf new