Corrosion Rates: 304_ss
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 | pren | resistance rating | stress corrosion risk | temperature C (C) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 304_ss | h2so4_10pct_25c | 10 | 5 | 197 | high | Sulfuric acid 10% at 25°C | AISI 304 Stainless Steel (UNS S30400) | Active region; corrosion rate 43.2 mm/yr at 98% H2SO4 but improves in dilute; still poor at 10% | 18 | not_recommended | low | 25 |
| 304_ss | h2so4_5pct_25c | 5 | 2.5 | 98 | high | Sulfuric acid 5% at 25°C | AISI 304 Stainless Steel (UNS S30400) | Active dissolution in dilute H2SO4; no passivation; not recommended without inhibitor | 18 | not_recommended | low | 25 |
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