The "First Plate" has left our new multifunctional quench!

With the successful heat treatment of the first plate a decisive milestone for the "New Heat Treatment Line" has been reached.

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A Traditional Company in the Harz Region

With a broad product range, the Ilsenburger Grobblech GmbH is one of the leading heavy plate mills in Europe.


With over 350 different steel grades with thicknesses ranging from 5 to 175 millimeters, we produce high-quality heavy plates for broadly diversified applications. 


Start your career with Ilsenburger Grobblech and become part of our great Team. 

Achieving Visions

Being successful together. The individual wishes of our customers motivate us every day to deliver top performance. Trust our many years of experience and let us together make visions become reality.


Bild zu Artikel hochfeste Quartobleche aus Ilsenburg für Liebherr

High-strength quarto plates from Ilsenburg for Liebherr


Liebherr, a long-standing partner of Ilsenburger Grobblech GmbH, is one of the first customers to receive plates of the MAXIL® series produced in the world's most advanced heat treatment line at the Ilsenburg site.

Nickel-Stähle der Ilsenburger Grobblech

4,500 t high-alloy nickel sheet for the Amur project


Universal Stahl and Ilsenburger Grobblech are supplying around 4,500 tons of high-alloy nickel plate in ASTM A645M Grade B for tanks at the ethylene production plant in eastern Russia.

New Director of Sales as of 1 October 2021 – Mr. Thorsten Gintaut


As of October 1, 2021, Thorsten Gintaut will take over as Director of Sales at Ilsenburger Grobblech GmbH. He is responsible for the sales of our products from our Ilsenburg and Mülheim mill.

BRINAR Protect - Sicherheitsstähle der Ilsenburger Grobblech GmbH

BRINAR® Protect


Our high-strength armoured steels BRINAR® Protect 02 and BRINAR® Protect 05 guarantee an increased resistance to ballistic impacts. The product brochures are available here.

Offshore Projekt

Heavy Plates from the Salzgitter-Group for a wind farm off the coast of Brittany


Ilsenburger Grobblech GmbH and Salzgitter Mannesmann Grobblech GmbH are delivering 50,000 t of thermomechanically rolled steel plates for the offshore wind project “Saint-Brieuc” off the French coast.