High-strength MS rectangular hollow section in YST 355 from Tata Structura, designed as a cold-formed structural tube for modern construction and fabrication. With a nominal size of 66×33 mm and 4.8 mm wall thickness in about 6 m length, it offers excellent load-carrying efficiency, superior torsional rigidity and clean architectural lines compared to conventional open sections.

The section is manufactured to IS 4923 or equivalent hollow section standards with tight control on dimensions, straightness and weld integrity, delivering dependable performance in long-span and repetitive structural applications.

Key Features

• High-strength YST grade providing a good balance of strength and ductility
• Rectangular hollow profile 66×33 mm for efficient use in oriented framing and architectural members
• Wall thickness around 4.8 mm optimised for strength-to-weight performance
• Cold-formed, welded tube with controlled dimensions, straightness and corner radii
• Closed box shape with better resistance to buckling and torsion than comparable open sections
• Suitable for welding, bolting, cutting and standard fabrication processes

Typical Applications

• Columns, rafters and portal frames in industrial and warehouse buildings
• Beams, lintels and edge members in commercial and institutional structures
• Space frames, canopies and façade support systems
• Railing, handrail and boundary frameworks
• Support structures for solar plants, signage and utility platforms