Albina Co., Inc. recently rolled 16 pieces of 5/8" plate A36 to as tight as a 162" radius. Six pieces of plate were used as the inside stringers of a beautiful spiral staircase at Altar'd State at the Forum Shops at Caesar's Palace. Six pieces of plate were used as the outside stringers of the staircase, and four pieces were used on the landings. We bent the stringers, trimmed rectangular treat cut outs, trimmed to length, match paired plates, tacked them together and match drilled all holes. We bolt matched the plates together with a 6 bolts, (2) on the end, (2) in the middle, and (2) on the other end.
Albina Co., Inc. recently completed 84 pieces of flat bar 1/4" x 4" A36 bent the easy way to as tight as a 29" outside radius. The flat bar hoops were rolled for a model measuring 82' tall and the Ariane V launch vehicle is on display at a museum in Kuwait. [caption id="attachment_1007" align="aligncenter" width="1067"] Rolled Flat Bar 1/4" x 4"[/caption] [caption id="attachment_1008" align="aligncenter" width="2480"] 82' High Ariane V Launch Vehicle[/caption]