AISI HCHCR D2 and CR12MOV (also known as DIN 1.2601) are both cold-work tool steels, commonly used in applications where high wear resistance and toughness are required. Here are some details about each:
Hardness: Typically hardened to 58-62 HRC (Rockwell Hardness)
Toughness: Good toughness and wear resistance
Machinability: Relatively difficult due to its high hardness
D2 steel is widely used for making cutting tools, forming dies, punches, and knives. It is suitable for applications requiring high wear resistance and a good balance between hardness and toughness.