Cold work tool steel

A2/1.2363 DIE STEEL


A2/1.2363 is an air hardening (cold work) tool steel with wear properties between O1 oil hardening and D2 air hardening.


A2/1.2363 offers good toughness with medium wear resistance along with relatively easy machining. A2 also has excellent non-deforming properties. These characteristics have made A2 a very popular and widely used material.


A2/1.2363 has a machinability rating of 65% of a 1% carbon tool steel.


A2/1.2363 is sold in the annealed condition. Typical annealed hardness is BHN 197/241 Rc 12/22.


A2/1.2363 maximum working hardness is BHN 698 Rc 62.


A2/1.2363 is capable of meeting ASTM-A681. 

Typical Applications


Blanking Dies      


Coining Dies        


Forming Dies      


Trim Dies            


Punching Dies      


Drill Bushings      




Laminations Dies    


Chemical Composition (Typical)


Carbon: 0.95~1.05%


Silicon: ≤0.50%


Manganese: ≤1.00%


Chromium: 4.75~5.50%  


Molybdenum: 0.90~1.40%