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.
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A wet and windy start to the weekend but improving during the afternoon. Drier and brighter with winds easing slightly.
The wind will pick up this evening bringing with it some misty and murky conditions.
A parent is arrested every day on suspicion of leaving one or more of their children at home alone, new figures reveal.