ASTM G1 · ASTM G102 · API 570 · NACE SP0775
CR = (K × W) / (A × T × D)Note: NACE SP0775 (carbon steel) is stricter — it classifies >10 mpy as Severe. Rates above 10 mpy are flagged red here accordingly.
| < 1 mpy | Negligible | Continue routine monitoring |
| 1–5 mpy | Low | Acceptable for most services |
| 5–10 mpy | Moderate | Review inhibitor program |
| 10–20 mpy | High | Exceeds NACE SP0775 severe threshold — increase monitoring |
| 20–50 mpy | Severe | Immediate action required |
| > 50 mpy | Critical | Consider shutdown/replacement |
Complete coverage of corrosion mechanisms (CO₂, H₂S, O₂, MIC), weight loss calculations, electrochemical methods, NACE standards, and inhibition strategies.
It supports ASTM G1 weight loss, ASTM G102 electrochemical, and API 570 thickness measurement methods.
Yes, it includes remaining life analysis and severity classification per API 570.
Calculations follow ASTM G1, ASTM G102, NACE, and API 570 industry standards.