Product Details: Steel of Japan, Daido Steel Co., Ltd. 's patent-NAK80 Pre-hardened plastic mold steel factory hardness can reach HRC37-43. Good polishing performance and carving, EDM good use in mirror polished mold. and dust, the TV filter plate, cosmetics boxes, precision wrinkle machining die, OA equipment, automobile parts, electrical discharge machining mold. 
 Product Details: 
 Chemical Composition (%) 

 C (carbon) Si (silicon) Mn (manganese) Cu (copper) of Al (aluminum) of Ni (nickel) of Cr (chromium) W (tungsten), Mo (molybdenum) V (vanadium) Co (cobalt) 

 0.15 0.3 1.5 1.0 1.0 3.0 12.0 - 0.3 - 

 Heat treatment: 

 Pre-hardened steel without heat treatment (HRC37-43) 

 Features: 

 A. Has a good polishing performance. 

 Two. Carving excellent, good discharge performance. 

 3. Have good weldability.