DEX40 Features: 

 1, a high degree of quality assurance as a carbide with a fine uniform organization, improve the quality and reliability 

 2, a high degree of resistance to Suila of the field due to the high hardness with high toughness, and rupture can prevent Suila 

 3, excellent high hardness carbide containing large amounts of generated elements, and some never get the hardness and improve wear resistance and strength 

 4, reducing the processing technology to improve the machining accuracy because the organization of the granular carbon, improved by cutting, reducing heat deformation of the anisotropic direction, to reduce the processing technology to improve the precision 

 DEX40 Uses: High toughness / heat resistance of both the common steel broaches, reamers, gear cutting tools, various cutting tools, cold and warm forging die, mold, and mold components, cold roll gadolinium 

 DEX40 chemical composition: 

 Datong steel chemical composition (%) 
 C Cr Mo WV Co 
 DEX40 1.3 4 5 6.5 3.0 8 


 DEX40 heat treatment: 

 Datong steel heat treatment 
 Before ignition temperature is not processed before the processing of hardness is not burning burning after ignition temperature processing temperature hardness 
 DEX40 800 ~ 880 ℃ 
 Xu cold 285HB the following 1180 ~ 1220 ℃ 540 ~ 590 ℃ 65HRC above 
 1100 ~ 1190 ℃ 540 ~ 600 ℃ 62HRC above