Since relighting the blast furnace in Redcar last year, 2.5 million tonnes of steel has been made.
You can watch how it is made below.
(This video does not have audio.)
More top news
Kerrie brings you Sunday's pollen count for the North East
Kerrie brings you Sunday night's forecast
The RNLI is urging people only to swim in the sea when lifeguards are patrolling. It comes after the rescue of three teenagers