The most famous technical "law" within RP0472 is the control of weldment hardness. High hardness is a direct proxy for high strength and low ductility, making the steel susceptible to hydrogen embrittlement.
: This is the most common method to prevent ASCC by reducing the residual tensile stresses from welding. The standard provides guidance on hold times (typically one hour minimum) and heating band widths for piping and vessels. Relationship with Other Standards Complying with NACE Hardness Requirements - TWI nace rp0472 pdf
Despite its long title, the industry commonly refers to it simply as or "RP0472." The most famous technical "law" within RP0472 is
NACE RP0472 serves as a critical resource for ensuring the integrity of buried pipelines through effective in-line inspection practices. By adhering to its guidelines, pipeline operators can significantly enhance the safety, reliability, and efficiency of their pipeline systems. The standard provides guidance on hold times (typically
The most famous requirement of RP0472 is the .