M2 is a widely utilized high speed steel. It can be used equally well in high speed steel and in cold work die steel applications. This material can be air hardened but best results can be achieved in salt baths. M2 offers good wear resistance at high hardness and offers good wear resistance at red hardness. This material is available in Plate, Block, Round, Groundstock, and Drill Rod forms. The optimal hardness range is 60-65 HRC.
For more detailed information download the tech bulletin PDF below:
AISI M-2 High Speed Tool Steel