04-01-2015, 08:14 PM
Shapiro has some A36 in 1/2" thick and 1" thick bars. 3 1/2" wide on the 1/2" thick and 4" wide on the 1" thick both under $19.00. While it is primarily a structural steel it should work well in this application.
http://www.shapirosupply.com/index.php?m...ts_id=9650
http://www.shapirosupply.com/index.php?m...ts_id=9650