Machining the wide range of steel tools
The ISO P material group is the largest within metal cutting. It covers steels ranging from unalloyed to high-alloyed material, including steel castings and ferritic and martensitic stainless steels. Although all steels are alloys in which iron is the major component, there are many kinds. For that reason, the specific machinability of steel for your application differs depending on material hardness, carbon content, alloying elements, heat treatment and manufacturing process (forged, rolled, cast, etc.).
In general, chip control of steel is relatively easy and smooth. Low-carbon steels produce longer chips that are sticky and require sharper cutting edges. The necessary cutting forces, and thus the power required to machine them, remain within a limited range.