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I would like to introduce a typical one.
SUS304
Austenitic stainless steel. It is a material that is prone to work hardening and welding.
The cutting force is also large, and the life of the tool tends to be shortened.
It is also a grade with a lot of variation in properties depending on the lot.
SUS329 (2-phase stainless steel)
It has two types of properties: austenitic and ferritic.
Because the cutting force is high and the cutting produces tough chips,
Tools are prone to plastic deformation and crater wear.
SUS630 (17-4PH), SUS631 (17-7PH), 15-5PH etc.
It is the type of stainless steel that has the most stickiness and hardness.
SUS630.631 has different properties such as hardness depending on the heat treatment situation.
As a tool, specifications for heat-resistant alloys are required, and we consider them as separate conditions from SUS304.
In particular, SUS631 is prone to welding.