Produced to IS 4923:2017 Grade YST 240 by the cold-forming ERW process, the AST PIPES MS SHS AST YST 240 MS SHS - (90 x 90 x 5 mm) - 6 mtr Length offers a 90 mm square section with 5 mm wall thickness and 6 m standard length. This hollow section meets the minimum yield strength of 240 MPa and tensile strength of 360 MPa as required for medium-duty structural and industrial framing. The precisely formed corners and consistent wall thickness of this square tube ensure uniform stress distribution under multi-directional loading, offering superior performance over open sections of equivalent weight.

• IS 4923:2017 Grade YST 240 compliant with traceable mechanical test certificates
• ERW welded with controlled heat input for uniform weld zone properties
• Certified yield strength of 240 MPa for structural engineering design calculations
• Biaxially symmetric square profile simplifying connection and joint detailing
• Consistent wall thickness across all four sides ensures uniform load transfer
• Clean mill finish receptive to all protective coating systems including epoxy
• Standard 6 m cut lengths minimising on-site material wastage and joints
• Compatible with conventional bolted, welded, and mechanical fastening systems
• Low carbon equivalent supporting good cold-forming and field weldability
• UTS of 360 MPa providing adequate reserve strength under overload conditions

• Structural framing in warehouses, factories, and commercial buildings
• Column and beam sections in modular and prefabricated structures
• Agricultural shed primary frames and storage facility structures
• Bridge handrail posts, parapet frames, and walkway supports
• Industrial racking primary uprights and load-bearing cross beams
• Crane runway secondary supports and auxiliary structural members
• Medium-span truss bottom chord and diagonal structural members
• Residential and commercial compound gates and fencing posts