We love steel!

… and have done so for more than 65 years! Welcome to OKS Otto Knauf GmbH, with headquarters in Iserlohn-Kalthof – your independent steel service centre. One of the market leaders in the trading and slitting of steel and non-ferrous metals. The core competence lies in slitting hot-rolled, cold-rolled, galvanised and stainless steel strip products.

This is the OKS Otto Knauf GmbH.​

In this film you can see what sets us apart, what we do and how we can make your project a success.

Customers all over the world and in many different industries benefit from our many years of experience with steel. We offer steel products for innovative and demanding applications. Our high-quality materials are exclusively sourced from renowned steel manufacturers. Discover for yourself our broad and comprehensive know-how.

Coil calculator

Use our practical tool for dynamic calculation of individual parameters of your steel coils.


Do you have questions regarding our services? Send us your own individual inquiry. You can count on us both in direct and in contract business. We are looking forward today to your product of tomorrow.