Chemical composition of the Tatung steel PD613: 
 C 
 Cr 
 Mo 
 V 
 Si 
 Mn 
 Patented steel 
 Datong Steel PD613 features: (1) heat treatment hardness of up to 56 ~ 61HRC, excellent wear resistance and durability. 
 (2) up to a higher mirror degrees. 
 (3) small changes in the heat treatment size. 
 Excellent toughness. 
 Etched excellent workability. 
 Datong Steel PD613 uses: 
 A high hardness and mirror plastic mold 
 2 tape cartridge and reel mold, engineering plastics with a precision mold of circuit boards 
 (3) cold stamping die 
 (4) require high toughness and high fatigue strength of the mold