I am new to Unreal 4 engine, shifting over from the Source Engine so I am slowly learning what I can do with engine and I can say it is ! I began modeling up some industrial props last week and just threw together a little sample room of some pipes I created. The first has the default M_Metal_Steel material applied and the second has the M_Metal_Burnished_Steel. Two of the exact same scenes with a completely different look from the different materials. For some reason I cannot upload the images From my computer or from Photo bucket so is my link.
://s24.photobucket/user/jim_fulton1/media/pipe5_zpsced5c787.png.html?sort=3&o=0