O1

O1

O1 is a popular oil hardening cold work die steel.  It offers good machinability, good stability, and good wear resistance.  O1 is readily available in Plate, Block,Round Bar, Groundstock, and Drill Rod forms.  The optimal hardness range is 54-62 HRC.

For more detailed information download the tech bulletin PDF below:

AISI-01 Oil Hardening Tool Steel