What brand of carbide is commonly used for finishing carbon and alloy steel?

Cemented carbide for tools can be divided into six categories depending on the application area:P, M, K, N, S, H;
P class:TiC and WC based alloys/coated alloys with Co (Ni+Mo, Ni+Co) as the binder are commonly used for machining long chip materials such as steel, cast steel and long cut malleable cast iron. Taking P10 as an example, under the conditions of high cutting speed and small chip cross section, the suitable machining conditions are turning, profiling, threading and milling.

M class:WC-based alloy/coated alloy with Co as binder and a small amount of TiC, commonly used for machining stainless steel, cast steel, manganese steel, malleable cast iron, alloy steel and alloy cast iron; take M01 as an example, suitable for fine boring under the conditions of high cutting speed, low load and no vibration.
Type K:WC-based alloy/coated alloy with Co as binder and a small amount of TaC and NbC, commonly used for machining short chip materials such as cast iron, chilled hard cast iron, short chip malleable cast iron and gray cast iron.

Type n:WC-based alloy/coating alloy with Co as binder and a small amount of TaC, NbC or CrC, commonly used for processing non-ferrous and non-metallic materials, such as aluminum, magnesium, plastics, wood, etc.
Class S:WC-based alloy/coating alloy with Co as binder and a small amount of TaC, NbC or TiC added, commonly used for processing heat-resistant and high-quality alloy materials, such as heat-resistant steel, various alloy materials containing nickel, cobalt and titanium;
Class H:WC-based alloys/coated alloys with Co as binder and a small amount of TaC, NbC or TiC, commonly used for hard cutting colorful processing, such as hardened steel, chilled cast iron and other materials;