Nace Rp0472 Pdf ((free)) -
Would you like a plain-language checklist based on RP0472 for field welding supervision?
: Keeping hardness below this limit ensures that the microstructure (primarily avoiding untempered martensite) is ductile enough to withstand the "pressure" of hydrogen atoms migrating into the metal lattice. 3. Critical Prevention Strategies nace rp0472 pdf