Mild Carbon Steel Flat Ground Stock 2-5/8" x 14-1/2" x 34-1/2" 370Lbs

 Mild steel. No grade stamp on this piece.
-There is some light rust on some of these pieces.
Thickness:  2.625"  +/- .005"
Width:  14-1/2"
Length:  34-1/2"
Weight:  370 Lbs