When standard materials do not meet specified criteria, NACE RP0391 dictates the validation testing required, including:
: Because they lack internal smoothness, threaded or socket-welded piping can cause localized turbulence and accelerated corrosion. Butt-welded or flanged piping is preferred.
Materials must transition from hot reservoir fluids (often exceeding 100°C) to near-freezing seabed temperatures (around 4°C). nace rp 0391 pdf
Fusion-Bonded Epoxy (FBE)
: This is a specific form of accelerated attack on vertical or inclined walls where hydrogen bubbles evolve and rise, physically damaging the protective sulfate film. When standard materials do not meet specified criteria,
: Contain higher nickel and chromium content to withstand broader concentration and temperature swings.
NACE SP0391 divides asset architectures into specific material categories based on velocity, mechanical stress, and maintenance cycles. 1. Carbon Steel Fusion-Bonded Epoxy (FBE) : This is a specific
A specific form of attack on vertical walls caused by rising hydrogen bubbles that disrupt the protective film.
| Document | Format | Year | Publisher | Key Page Details | | :--- | :--- | :--- | :--- | :--- | | | PDF (16 pages) | 2016 | NACE International / NORMADOC | 19 | | NACE RP0391-2001 | PDF (13 pages, 77 KB) | 2001 | NACE International / Norm Library | 20 | | NACE RP0391-2001 | PDF (13 pages, 77 KB) | 2001 | NACE International / Standards Global | 9 |
). Sulfuric acid is the world's most widely produced industrial chemical. Managing its highly corrosive nature requires strict adherence to industry protocols. 📋 What is NACE RP0391 / SP0391?