Cantor Technology released the spreads for every NFL game in Weeks 1-16. Below are the lines for Pittsburgh's games.
Week 17 is excluded because of high variance caused by potential playoff seeding, QBs sitting out the final week or playing partial games, etc.
Here is the list for every game.
Week 1
Steelers (-9) at Browns
Week 2
Vikings at Steelers (-6)
Week 3
Steelers (-5.5) at Bears
Week 4
Steelers (-1.5) at Ravens
Week 5
Jaguars at Steelers (-9)
Week 6
Steelers at Chiefs (-1.5)
Week 7
Bengals at Steelers (-7)
Week 8
Steelers (-1.5) at Lions
Week 9
BYE
Week 10
Steelers (-1) at Colts
Week 11
Titans at Steelers (-6.5)
Week 12
Packers at Steelers (-3)
Week 13
Steelers (-1) at Bengals
Week 14
Ravens at Steelers (-6)
Week 15
Patriots (-1.5) at Steelers
Week 16
Steelers (-1) at Texans