1. Ultra fine grain alloy, with good edge sharpness and wear resistance. Application: Can be used to process gear products above HRC60.
2. Fine grained alloy, with good edge sharpness and wear resistance. Application: Can be used to process gear products up to HRC55.
3. Submicrograin alloy, with good edge sharpness and collapse resistance. Application: Can be used to process gear products up to HRC35.