Hi @lkirit2000
I created a special material for 655M13 (EN36B) which is case carburized. This is saved in your user material library.
I normally send a series of specimens to the laboratory for analysis and testing, and then use the average result as the input data.
When I run an analysis and I see that the stress penetrates deeper than the case carburizing depth, where the core might have different properties I create a small assembly and analyze as required. This is usually the exception and not the rule in my case.




Make sure you know the directory where you save your material, as sometimes you would need to refer back to this location, especially if you upgrade to a newer version.
If you don't have access to a material testing laboratory you can use the values as specified in the ASME materials handbook, which is quite accurate.
Hope this helps.
Regards