CROCAR is an air or oil hardening high-carbon high-chromium die steel having extreme wear and abrasion resistance. It is equivalent to AISI Type D4 and ASM Class IID-3. This datasheet provides information on composition, hardness, and compressive strength as well as deformation. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-44. Producer or source: Vanadium Alloys Steel Company.