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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.

Non-Prime

Steel

Non-prime usually describes steel which is unsuitable for its originally intended application – either because of its metallurgy or physical condition – or is in excess of the tonnage required to fulfil a particular contract (over-rolled). Much non-prime is the result of defects created during steelmaking and downstream processing – and as a result this steel does not have the mill certification associated with prime material. 

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