Metallurgical quality and mirror polishing performance of domestic wide used 5 kinds of ESR high quality corrosion-resisting mirror plastic die steel 4Cr13(DIN 1.2083)-0.37~0.57C
12.59~13.67Cr produced at home and abroad are analyzed comprehensively. Examination results indicated that the ESR steels have excellent mirror polishing performance
as the range of HRC hardness value of samples was ≤1.5
the steels have nice mirror polishing performance and as there were multi-phase titanium nitride inclusions in steel
they obviously influenced the mirror polishing performance of steel.