On a whistlestop visit to Tata Steel the Prince commemorated the rebuilding of blast furnace number four - a major £185 million project.
He was then shown a video about the lightweight super-strength steel which could transform safety for British soldiers.
As Charles was taken around the marquee, children from Eastern Primary School performed a series of festive songs.
More top news
A few showers across the far west, but elsewhere dry and clear with temperatures dipping to single figures.
The Osprey was launched in June by a school in Maryland.
The blue badge parking scheme has been expanded in Wales from today and will now provide temporary badges to those who qualify.