Spec Sheet Contractors who design, build and install Air Conveying Systems to move materials like paper, fibers and cotton specialize in a niche industry of Sheet Metal Fabrication. Pneumatic systems that move materials instead of just air typically require that the piping has a welded longitudinal seam, because thickness of metal must be at least 18 gauge for a proper weld. These shops typically use 18 gauge and 16 gauge frequently. For the transverse connections, these shops often put Angle Iron Rings on the pipe and then Vanstone a right angle on each end by means of a Power Rotary Machine with 1/2″ Flanging Rolls. Rolled Carbon Steel Prepunched Angle Iron Rings are used in joining duct work together. We stock diameters 3″ thru 59″. Larger sizes as well as Galvanized, Aluminum and Stainless Steel Rings are also available with very short lead times. Standard AIR03 3″ Angle Iron Rings AIR04 4″ Angle Iron Rings AIR05 5″ Angle Iron Rings AIR06 6″ Angle Iron Rings AIR07 7″ Angle Iron Rings AIR08 8″ Angle Iron Rings AIR09 9″ Angle Iron Rings AIR10 10″ Angle Iron Rings AIR11 11″ Angle Iron Rings AIR12 12″ Angle Iron Rings AIR13 13″ Angle Iron Rings AIR14 14″ Angle Iron Rings AIR15 15″ Angle Iron Rings AIR16 16″ Angle Iron Rings AIR17 17″ Angle Iron Rings AIR18 18″ Angle Iron Rings AIR19 19″ Angle Iron Rings AIR20 20″ Angle Iron Rings AIR21 21″ Angle Iron Rings AIR22 22″ Angle Iron Rings AIR23 23″ Angle Iron Rings AIR24 24″ Angle Iron Rings AIR25 25″ Angle Iron Rings AIR26 26″ Angle Iron Rings AIR27 27″ Angle Iron Rings AIR28 28″ Angle Iron Rings AIR29 29″ Angle Iron Rings AIR30 30″ Angle Iron Rings AIR31 31″ Angle Iron Rings AIR32 32″ Angle Iron Rings AIR33 33″ Angle Iron Rings AIR34 34″ Angle Iron Rings AIR35 35″ Angle Iron Rings AIR36 36″ Angle Iron Rings AIR37 37″ Angle Iron Rings AIR38 38″ Angle Iron Rings AIR39 39″ Angle Iron Rings AIR40 40″ Angle Iron Rings AIR41 41″ Angle Iron Rings AIR42 42″ Angle Iron Rings AIR43 43″ Angle Iron Rings AIR44 44″ Angle Iron Rings AIR45 45″ Angle Iron Rings AIR46 46″ Angle Iron Rings AIR47 47″ Angle Iron Rings AIR48 48″ Angle Iron Rings AIR49 49″ Angle Iron Rings AIR50 50″ Angle Iron Rings AIR51 51″ Angle Iron Rings AIR52 52″ Angle Iron Rings AIR53 53″ Angle Iron Rings AIR54 54″ Angle Iron Rings AIR55 55″ Angle Iron Rings AIR56 56″ Angle Iron Rings AIR57 57″ Angle Iron Rings AIR58 58″ Angle Iron Rings AIR59 59″ Angle Iron Rings AIR60 60″ Angle Iron Rings AIR61 61″ Angle Iron Rings AIR62 62″ Angle Iron Rings AIR63 63″ Angle Iron Rings AIR64 64″ Angle Iron Rings AIR66 66″ Angle Iron Rings AIR68 68″ Angle Iron Rings AIR70 70″ Angle Iron Rings AIR72 72″ Angle Iron Rings Pressed/Stamped: AIR06S 6″ Pressed Angle Ring 13Pcs/Bundle AIR07S 7″ Pressed Angle Ring 10Pcs/Bundle AIR08S 8″ Pressed Angle Ring 10Pcs/Bundle AIR09S 9″ Pressed Angle Ring 10Pcs/Bundle AIR10S 10 Pressed Angle Ring 8Pcs/Bundle AIR11S 11 Pressed Angle Ring 8Pcs/Bundle AIR12S 12 Pressed Angle Ring 10Pcs/Bundle
