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.

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.


Teaser image N-A-XTRA<sup>®</sup> and XABO<sup>®</sup> steels

N-A-XTRA® und XABO®: Lightweight and highly resilient


Ilsenburger Grobblech GmbH acquired the trademark rights of N-A-XTRA® and XABO® steels from a German steel group after discontinuing heavy plate production.

SECURE Protection Steels - Downloadcenter


Here you can find all relevant information sheets regarding our SECURE Protection Steels

Circularity - Made by our Apprentices!


On the occasion of Earth Day 2022, the apprentices at Ilsenburger Grobblech GmbH planted 1,700 trees in the Harz National Park!

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.

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.