Hi, Yes different Granta products, and MDS might be the most useful for you if you need just some stress strain curves for your simulation. In case you need more data, Granta Selector and Granta MI provide access to more databases (JAHM, ASME, Global Metal Specs...). Here a screenshot of a quick search for the steel you are looking for, into Selector.
The unique record in MaterialUniverse corresponds to the one in MDS which is a generic record representative of this type of steel. Others in ASME DB are more detailled for example.