From what we were able to piece together from reports, the Pittsburgh Steelers only seemed to bring in 24 guys (30 is the maximum).
This is where they all ended up (table is sortable - just click on the column headers):
|Player||Pos||School||NFL Team||Round||Overall Pick #|
|Justin Brown||WR||Oklahoma/Penn State||Steelers||6||186|
|Jamie Collins||OLB||Southern Miss||Patriots||2||52|
|Will Davis||CB||Utah State||Dolphins||3||93|
|Nik Embernate||OG||San Diego State||Steelers||N/A||UDFA|
|Michael Mauti||ILB||Penn State||Vikings||7||213|
|Christine Michael||RB||Texas A&M||Seahawks||2||62|
|Xavier Rhodes||CB||Florida State||Vikings||1||25|
|John Simon||OLB||Ohio State||Ravens||4||129|
|Phillip Thomas||S||Fresno State||Redskins||4||119|
|B.W. Webb||CB||William & Mary||Cowboys||4||114|
|Vince Williams||ILB||Florida State||Steelers||6||206|
As you can see, the list is depth-heavy (as opposed to top-heavy) as the vast majority ended up being Day 3 picks -- a whopping 9 out of 24 were selected in the 4th round alone.
If initial reports of Nik Embernate signing with the Steelers as an undrafted free agent (UDFA) are true, Pittsburgh will have ended up with five of the prospects they had in for visits - one more than they wound up with last year, when they did hit their limit of 30 visitors.