Corrosion Rates: monel_400
Quantitative corrosion rate data for metals in various environments — corrosion rate in mm/yr and mpy, pitting potential, crevice and stress corrosion risk ratings, and PREN values
| metal id | environment id | concentration pct (%) | corrosion rate mm yr (mm/yr) | corrosion rate mpy (mpy) | crevice corrosion risk | environment description | metal name | notes | resistance rating | stress corrosion risk | temperature C (C) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| monel_400 | h2so4_10pct_25c | 10 | 0.5 | 19.7 | moderate | Sulfuric acid 10% at 25°C (de-aerated) | Monel 400 (UNS N04400) | Good in de-aerated dilute H2SO4; aeration significantly accelerates attack | fair | low | 25 |
| monel_400 | h2su4_50pct_25c | 50 | 8 | 315 | high | Sulfuric acid 50% at 25°C | Monel 400 (UNS N04400) | Not recommended above ~20% H2SO4 without specific testing; rapid attack in medium concentrations | not_recommended | low | 25 |
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