The circular hollow section page states a size range of 21.3 mm to 406.4 mm outside diameter and 1.6 mm to 12 mm thickness. The printed table (IS:1161 : 2014) lists 93 outside diameter and thickness combinations from 60.3 mm to 273.1 mm OD, with mass, cross-section area, internal volume, moment of inertia, elastic and plastic modulus, radius of gyration, its square and torsional constant for each.

Key features

• Section properties listed for every outside diameter and thickness
• Outside diameter 21.3 mm to 406.4 mm and thickness 1.6 mm to 12 mm (as stated)

Applications

• Airport terminals (Prayagraj Airport expansion case study)
• Hospital buildings (Max Super Speciality Hospital, Saket case study)
• Railway stations (Tirupati Railway Station case study)
• Railway platform and station roofs
• Long-span space-frame and truss roofs
• High-rise commercial and residential buildings
• Petrol pump canopies
• Large canopies

Specifications

Standard: IS:1161 : 2014 | Outside Diameter Range (stated): 21.3 mm to 406.4 mm | Thickness Range (stated): 1.6 mm to 12 mm | Outside Diameter Range (tabulated): 60.3 mm to 273.1 mm | Thickness Range (tabulated): 2.0 mm to 12.0 mm | Section Property Columns: Mass (kg/m), Area of Cross Section (cm2), Internal Volume (cm3/m), Moment of Inertia (cm4), Elastic Modulus (cm3), Plastic Modulus (cm3), Radius of Gyration (cm), Square of Radius of Gyration (cm2), Torsional Constant (cm3)

Standards: IS 1161:2014