Producer
Vesuvius plc
UK-listed global refractory and molten metal flow control company; ~£1.8B revenue; produces continuous casting refractories (slide gates, nozzles, stopper rods) and steel plant ceramics. Flow control is Vesuvius's specialty — the nozzles that control molten steel flow from ladle to tundish to mold in continuous casting.
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Steel Flow Control Refractories
55%Foundry (Non-Steel Casting)
30%Advanced Refractories & Other
15%
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Origin2023
Vesuvius plc was spun out of Cookson Group (a British diversified materials company) in 2012, but its product heritage traces to 19th-century refractory manufacturers on multiple continents. The "Vesuvius" brand name itself — applied to crucibles and high-temperature ceramics for more than a century before consolidation — was deliberately chosen to evoke the volcanic conditions that refractory materials must withstand. Cookson Group accumulated refractory and flow control businesses through 20th-century acquisitions in the UK, US, and Europe, eventually separating them as Vesuvius to allow dedicated focus on the molten metal flow control market. The critical product insight that defines Vesuvius is that controlling molten steel flow during continuous casting is not a commodity problem but a precision engineering problem: the ceramic nozzles and stopper rods that meter 1,600°C liquid steel from ladle to tundish to mold must maintain consistent orifice dimensions under extreme thermal shock while resisting chemical attack from steel slag. Vesuvius's flow control products are used in every major continuous casting installation globally — without these ceramics, modern steelmaking's high-speed, high-volume continuous casting process would be impossible, and steel would have to be made by the older, far less efficient ingot casting process.
Vesuvius plc ↗