Outokumpu Nirosta, Germany, benefits from our revamp experience

Ready for challenging jobs

SMS group recently modernized the more than 45 year-old 20-high roll mill “SG 3” at the Krefeld works of Outokumpu Nirosta GmbH. Originally supplied by SMS group, the MonoBlock stand produces high-quality stainless steel strip. To expand the product mix by thin-gauge ferritic grades in high-gloss (2R bright annealed) quality, we revamped the mill stand and auxiliary equipment.

The modernization comprised upgrades of the entry and exit sections, mill stands, and rolling oil plant. Keen to save our customer money, we were able to overhaul and re-use parts of the existing equipment. The newly installed equipment included a dirty oil tank with automatic pre-separator and a Supafine® filter system.

All installations were carried out stepwise with minimal disturbance of production

Here are the benefits for Outokumpu Nirosta:

  • High flexibility
  • Production of ferritic grades in bright annealed strip quality
  • Rolling of the entire thickness range at maximum speed
  • Faster and easier strip threading
  • More efficient production


Austenitic, ferrite and martensitic grades

Strip width

Max. 1570 mm

Strip thickness

0.50 mm - 10.00 mm

Rolling speed

Max. 500 m/min.