Nace — Rp0775 [top]

[ CR\ (mm/yr) = \frac(W_i - W_f) \times KA \times t \times \rho ]

| Corrosion Rate (mpy) | Classification | Action | |----------------------|----------------|--------| | < 1 | Low | Monitor | | 1–5 | Moderate | Check inhibition | | 5–10 | High | Improve inhibition | | > 10 | Severe | Immediate action | nace rp0775

[ CR\ (mpy) = \frac\textWeight loss (mg) \times 0.222\textArea (in²) \times \textdays ] Guidelines for typical carbon steel: [ CR\ (mm/yr) = \frac(W_i - W_f) \times