Nace Rp0472 Pdf New Extra Quality Jun 2026

Methods and Controls to Prevent In-Service Environmental Cracking of Weldable Carbon Steel Alloy Piping Systems.

The central tenet of NACE SP0472 is controlling the hardness of the weld and Heat Affected Zone (HAZ). High hardness in steel correlates with increased susceptibility to SSC. nace rp0472 pdf new

In the late 1960s, a series of failures in hard weld deposits led to the development of this standard to mitigate and other forms of environmental cracking. It specifically targets P-No. 1 carbon steels (those with a tensile strength up to 70,000 psi) used in pressure vessels, piping, and heat exchangers. Key Technical Focus Areas 000 psi) used in pressure vessels