When the type of hardening is specified in the [Through Hardening instruction] dialog box, the standard hardness is displayed in the “Hardness (HRC)” field.
If you want to specify a hardness other than the standard hardness, enter a lower limit and upper limit in the “Hardness (HRC)” input box.
The change to the hardening selection can be confirmed in the “Basic Information” section next to “Heat Treatment” .
Tip
If the material is changed after selecting Through Hardening, the hardness will automatically change to the standard hardness of the material after the change.
Reference>>>How to set up Through Hardening STEP2