Metal corrosion resistance grade 10 standard
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Metal corrosion resistance – Grade 10 standard. Corrosion resistance category, Corrosion rate (mm/a), Grade: 1 – Completely resistant to corrosion: <0.001; 2 – Highly resistant to corrosion: 0.01–0.005, 0.005–0.01; 3 – Resistant to corrosion: 0.01–0.05, 0.05–0.1; 4 – Moderately resistant to corrosion: 0.1–0.5, 0.5–1.0; 5 – Slightly resistant to corrosion: 1.0–5.0, 5.0–10.0; 6 – Not resistant to corrosion: >10.0; 7, 8, 9
The metal corrosion resistance standard of grade 10 is classified based on the corrosion rate; the specific grades and their corresponding corrosion rates are as follows: 1. Completely corrosion-resistant: corrosion rate less than 0.001 mm/a, grade 1. 2. Highly corrosion-resistant: the corrosion rate ranges from 0.001 to 0.01 mm/a, with a grade of 2. 3. Corrosion resistance: The corrosion rate ranges from 0.01 to 0.1 mm/a, with a grade of 3. 4. Good corrosion resistance: The corrosion rate is between 0.1 and 1.0 mm/a, with a grade of 4. 5. Poor corrosion resistance: The corrosion rate ranges from 1.0 to 10.0 mm/a, with a grade of 5. 6. Poor corrosion resistance: Corrosion rate greater than 10.0 mm/a, grade 6. .