The AST PIPES YST 310 Square Hollow Section AST YST 310 MS SHS - (50 x 50 x 4 mm) - 6 mtr Length is cold-formed and ERW-welded to IS 4923:2017 specifications, presenting a 50 mm outer dimension with 4 mm wall thickness in standard 6 m lengths. With guaranteed mechanical properties of 310 MPa yield and 450 MPa tensile strength, this SHS serves as a reliable structural component for heavy structural, high-load bearing and column applications. The closed square cross-section imparts excellent torsional and bending stiffness, enabling span and cantilever structural designs with minimal deflection.

• Grade YST 310 IS 4923:2017 certified SHS with guaranteed mechanical properties
• ERW process producing a continuous, sound weld seam along the full tube length
• Yield strength of 310 MPa and tensile strength of 450 MPa for design-critical applications
• Square hollow geometry offering excellent column action under axial compression
• Equal section modulus about both axes enabling multi-directional load resistance
• Mill surface suitable for direct fabrication, painting, or hot-dip galvanizing
• Available in a wide range of sizes from small profiles to large structural sections
• Standard 6 m lengths compatible with standard transport and storage infrastructure
• Good notch toughness and elongation properties for structural safety under impact
• Dimensional accuracy per IS 4923 tolerances ensuring interchangeable fit-up

• Primary structural frame columns in warehouses and distribution centres
• Long-span truss members in airport terminals and exhibition halls
• Heavy structural framing in power stations and process facilities
• Structural sections for oil and gas platform topsides and jacket frames
• Rail over-bridges and road bridge primary structural beam members
• Heavy crane gantry columns and crane main girder structural sections
• Primary structural members in stadiums, arenas, and grandstand roofs
• Structural hollow sections in high-rise building cores and perimeter frames