X0206 3 2015-08-12 0 0001598428 TimkenSteel Corp TMST 0001399098 DUNLAP TERRY L 1835 DUEBER AVE., S.W. CANTON OH 44706-2789 1 0 0 0 Common Shares 0 D Exhibit 24 - Power of Attorney /s/ Frank A. DiPiero, as Attorney-in-Fact 2015-08-13