Free-machining steels: Trafilerie Assi in Poland

The collaboration between Trafilerie Assi and a leading Polish distributor has steadily grown over the years through the supply of drawn steel bars primarily destined for the automotive industry.
The ability to ensure continuous supply across a wide range of steel grades, bar sizes and quality specifications has proven to be a key factor in the success of this strategic partnership.
Round, square and hexagonal steel bars
One of the most significant aspects of this cooperation is the variety of products purchased by the customer. Over the years, the distributor has progressively expanded both order volumes and dimensional ranges. What initially began with small batches of square steel bars has evolved into regular supplies that now include:
- round bars
- hexagonal bars
- square bars
in various diameters and sizes, covering the entire dimensional range required for the different manufacturing applications served by the distributor in the Polish market.
High-speed free-machining steels
From a material standpoint, the partnership initially focused exclusively on 11SMnPb37 free-machining steel. More recently, however, demand has also increased for 36SMnPb14 and, above all, 11SMn30.
These free-cutting steel grades are highly appreciated for their excellent machinability in high-speed automatic turning, CNC machining and high-productivity metalworking operations.
Thanks to their superior chip-breaking characteristics and consistent machining performance, these steels are widely used for the production of precision components for the automotive, mechanical engineering and general manufacturing sectors.
If you are looking for a reliable supplier of free-machining steels for precision turning and machining applications, contact Trafilerie Assi using the details provided.
- Long products •
- Metal wire •
- Round Bars •
- Hexagonal bars •
- Square bars


