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German-based global supplier of refractory products, casting aids and metallurgical additives for the steel and iron industry.

Last updated September 26, 2026

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Overview

Intocast AG (stylised as INTOCAST) is a German industrial group specialising in refractory products and casting aids for the steel and iron industry. Headquartered in Ratingen, Germany, the company describes itself as a group of experts uniting refractory specialists from around the world, offering customers everything needed for economical, efficient and sustainable operations — from individual refractory products to complete installations. Its product range covers shaped and unshaped refractories, casting aids, slide-gate sands and metallurgical slag additives used in melting, alloying, combustion and hot-forming processes. The company was founded in 1979 and took over the activities of Eugen Schwarz GmbH, which had supplied the German and European steel industry with iron- and steelmaking aids since 1922. Over the following decades, Intocast grew through acquisitions and participations into a globally active, medium-sized enterprise. According to its German Wikipedia entry, the group operates 12 German and 18 foreign production and sales sites, employs roughly 1,440 people worldwide on average, and generates consolidated group revenue of approximately 330 million euros per year. In Germany, Intocast has locations in Ratingen, Krefeld, Duisburg, Oberhausen and Großdubrau. Internationally, the group maintains sites in Brazil, the United Kingdom, Italy, Romania, Russia, Slovakia, Spain and South Africa. Its customer base is concentrated in the steel and iron industry, where refractories are essential consumables for lining furnaces, ladles and other high-temperature vessels, and where casting aids and slag additives support metallurgical process control. Intocast positions itself under the slogan "Experts on fire", emphasising deep technical expertise in high-temperature applications. The group remains privately held and is not listed on a stock exchange. Its business model combines product manufacturing with engineering and plant construction (Anlagenbau), allowing it to serve steelmakers with integrated refractory solutions rather than standalone materials alone.

History

Intocast was founded in 1979 and took over the activities of Eugen Schwarz GmbH, a company that had supplied the German and European steel industry with aids for iron and steel production since 1922. This inheritance gave the young company an established customer base and technical tradition in metallurgical consumables. Over the following decades, the Intocast Group grew through acquisitions and participations into a globally active, medium-sized enterprise. According to its German Wikipedia entry, the group now operates 12 German and 18 foreign production and sales sites. In Germany, its locations include Ratingen (headquarters), Krefeld, Duisburg, Oberhausen and Großdubrau. Internationally, the group maintains sites in Brazil, the United Kingdom, Italy, Romania, Russia, Slovakia, Spain and South Africa. The company's product portfolio evolved around shaped and unshaped refractory products, casting aids and metallurgical slag additives that support processes for melting, alloying, combustion and hot forming. In addition to materials, Intocast offers plant construction (Anlagenbau), enabling it to deliver complete installations rather than only consumables. The group employs roughly 1,440 people worldwide on average and reports consolidated group revenue of approximately 330 million euros per year. It remains privately held and is not listed on a stock exchange.

  • 1979

    Intocast is founded and takes over the activities of Eugen Schwarz GmbH.

  • 1922

    Eugen Schwarz GmbH begins supplying the German and European steel industry with aids for iron and steel production.

  • Intocast grows through acquisitions and participations into a globally active, medium-sized enterprise with 12 German and 18 foreign sites.

Products and positioning

Global mid-sized specialist in refractories and casting aids for the steel and iron industry, marketed under the slogan "Experts on fire".

  • Refractory products

    Shaped and unshaped refractories for high-temperature steel and iron processes.

  • Casting aids

    Aids supporting casting processes in steel production.

  • Slide-gate sands

    Sands used in slide-gate systems for steel casting.

  • Metallurgical slag additives

    Additives supporting melting, alloying, combustion and hot-forming processes.

  • Plant construction (Anlagenbau)

    Engineering and construction of complete refractory installations.

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