If you can tell me the or equipment (e.g., pressure vessel, pipeline) you are working with, I can provide more tailored guidance on the hardness test locations or post-weld heat treatment requirements .
AMPP (ampp.org) is the exclusive rights holder. The standard is now called (or upcoming 2025 revision). As of 2024-2025, the “new” version is the 2020 reaffirmed edition with technical corrigenda.
Methods and Materials to Prevent Corrosion Beneath Pipe Supports (CBPS) nace rp0472 pdf new
Reaffirmed and updated as NACE SP0472-2020 . The change in nomenclature signifies the strengthening of the standard from a recommendation to a mandatory practice in many contractual agreements. Scope and Application of NACE SP0472
NACE SP0472, titled "Methods and Controls to Prevent In-Service Environmental Cracking of Carbon Steel Weldments in Corrosive Petroleum Refining Environments," is a critical document for engineers and fabricators working with P-No. 1, Group 1 or 2 carbon steels. If you can tell me the or equipment (e
Users looking for the "new" PDF should note that NACE International merged with SSPC to form
: A major focus is controlling the hardness of the weld deposit and the Heat-Affected Zone (HAZ) . High hardness (often resulting from welding processes like SAW with active fluxes) is a primary cause of environmental cracking. As of 2024-2025, the “new” version is the
The document is relatively concise, historically coming in at about 17 pages. It provides the refining industry with practical methods to ensure safe, uninterrupted operation. A key visual element is the inclusion of schematic drawings that show the exact locations for taking hardness indentations on a weldment, which is crucial for quality control during fabrication.
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 SP0472 (RP0472) PDF: Essential Guide to Preventing Environmental Cracking in Refinery Weldments
: Originally prepared in 1972 to address a spike in SSC failures in the late 1960s.