Steel Billet Request to UK

Looking for a quotation on 50 tonnes and 100 tonnes of steel billets. The grade of the steel does not matter as it will be only be used for ballast purposes.
Material wise, we are after carbon or alloy steel.
The measurements will need to be 180mmx180mm with a cut off length of around 1650mm, but we're happy to look at other options for sizes as long as they don’t differ too much.
It would be being shipped to the United Kingdom - CIF.
If I could get a price as soon as possible, that would be great.