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Glossary

The Kallanish Glossary aims to be a useful resource for complex industry specific terminology. We are constantly adding to our glossary, so if you have a suggestion or amendment please do get in touch.

Normalising

Steel

Normalising is a process where a heat treatment is applied to steel for relief of internal stress, based on heating and subsequent air cooling. This is a process similar to annealing, where metal is heated to a high temperature and held at this temperature for several hours to improve grain structure. Unlike annealing, however, where the metal is cooled slowly in the furnace, here it is cooled more swiftly by removing it from the furnace to cool in air. This makes the metal stronger and harder than it would be after annealing, and because of this the normalising process is often employed to treat steel plate used for pressure vessel fabrication.

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