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Best material to handle iodised salt

Edible salt, iodised is taken to a mechanical vibro-screen of 16 mesh. It is seen that the sieve made of SS - 316 is getting discoloured (yellowish within 15 days).
What could be the problem and how to overcome

Sudhish Chatterjee
- Pune, INDIA
2006

The iron present in SS316 is highly attacked by both chlorine and iodine. The other ingredients which are responsible for its corrosion resistance (chrome and nickel), are also somewhat sensitive. Maybe you should look for a more resistant alloy (one that contains less or no iron at all).

Guillermo Marrufo
Monterrey, NL, Mexico
2006

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