Wrong properties?

Hi

can i change the yeild trength of a material already put in by solidworks. As i was looking at the different materials i noticed that the S355 materials under Solidworks DIN Materials > Structual, has a yeild strength of 275Mpa. If im right in saying, the 355 states the minimum yeild strength in Mpa? Am i right in saying that the S355J2G3 should have a miniumum yeild strength of 355Mpa instead of 275Mpa?

Just thought that would give different results to what it should be.

Thanks

SolidworksSimulation