Die steel is used in a variety of manufacturing applications, especially in molds and tools that require precision and 

high finish surfaces. The polishing effect of the die is directly related to the material of the die steel. The following 

are some die steel materials that are widely used because of their excellent polishing properties:

ASP 23 - This steel is a high-speed steel treated by powder metallurgy process, with high uniformity and purity, ideal 

for polishing.

S136/1.2083/Stavax ESR - This stainless corrosion resistant die steel is widely used in the manufacture of plastic molds 

with high quality requirements. It is made by the electroslag remelting (ESR) process and has very good polishing and 

etching properties.

P20/1.2311 - This is a general purpose pre-hardened die steel with excellent polishing properties, commonly used in 

plastic molds and casting molds.

H13/1.2344/SKD61 - This hot work tool steel has excellent heat resistance and polishability and is often used in hot 

forming dies such as die casting dies.

NAK80 - This pre-hardened die steel has excellent polishability and processability, especially when manufacturing 

plastic molds that require a high finish surface.

420/1.2083 - A high quality stainless die steel with high hardness and finish, it is suitable for the manufacture of molds 

requiring extremely high surface quality.

M340/1.2316 - A die steel with good corrosion resistance and polishability, commonly used in high-quality plastic molds 

and mirror molds.

In the selection of die steel with excellent polishing effect, in addition to the polishing performance of the steel itself, 

other factors such as hardness, strength, corrosion resistance and other properties need to be considered to ensure 

that the overall performance of the mold meets the production requirements. Moreover, to achieve the best polishing 

effect, it is also necessary to use the appropriate polishing technology and process.