FINNED TUBES ASTM A 106-B SPECIFICATION
DN 2.1/2" (73 mm) Tubes, Sch. 80 x 6,000 mm
Tube Material ASTM – A – 106 Gr. B
• Carbon steel fins
• Fin thickness 1 mm
• Fin height 24.5 mm
• Finned diameter = 122 mm
• Pitch: 141 fins per meter
• 50 mm plain ends
• Fin Type I-Fin.