Key features

• Uniform geometry along two or more cross-sectional axes
• Excellent resistance to torsion
• good for columns
• Can be used as beams with superior lateral torsional buckling resistance

Applications

• Columns
• Welded steel frames
• Exposed architectural structures
• Lally columns

Specifications

Specification: IS 4923 - 97 | Size range: 25 mm to 92 mm (8 size variants, L/M/H) | Thickness range: 2 mm to 5.4 mm | Grades (Y.S min / T.S min / elongation): Yst 210: 210/330 MPa/20%; Yst 240: 240/410 MPa/15%; Yst 310: 310/450 MPa/10%; Yst 355: 355/490 MPa (8% <25.4 mm, 10% >25.4 mm) | Outside dimension tolerance: +/-1% with a min of +/-0.50 mm | Thickness tolerance: +/-10% | Squareness: 90 deg +/-2 deg | Corner radius: 3t max | Weight tolerance: Individual lengths +10%/-8%; lot of 10 MT +/-7.5%

Standards: IS 4923:1997