KORLOY has released a new grade series NC9100s (M15-M25-M35), specialized in stainless steel turning.
Stainless steel is often considered a hard-to-cut material due to its high shearing resistance that can easily cause work hardening, built-up edges, and edge fracture. Its combination of tough and hard material characteristics require the prudent selection of grades and chip breakers.
Stainless steels can be roughly divided into three types — austenite, martensite, and ferrite. The majority of SS used is the austenite (STS3xx).The martensite, ferrite (STS4xx), and the combination of the two types, duplex (F51, F53), comprise the rest.
While the martensite and ferrite show comparatively good machinability, the austenite, and the duplex, feature hard to cut material characteristics.
These challenges led KORLOY to develop the CVD coated turning grade series, NC9115-NC9125-NC9135 with great turning machinability in hard-to-cut materials. It delivers differentiated tool life over high heat caused during large-scaled machining, or under high speed, continuous, medium to rough, and dry cutting conditions, compared to the existing PC9030 and PC8100 series.
The NC9100 Series will show excellent cutting performance with its combination of three layers – the top coat protects against welding, the coating layers protect against wear even at high speeds over 150m/min, (492sfm) and has a tough substrate against chipping.
Additionally, it is equipped with three types of grades for comprehensive use in different workpiece sizes and interruptions.
