Conforming to IS 4923:2017 Grade YST 240, the AST PIPES MS SHS AST YST 240 MS SHS - (90 x 90 x 3.6 mm) - 6 mtr Length is a precision cold-formed square hollow section featuring 90 mm outer dimensions and 3.6 mm wall thickness across a 6 m mill length. This ERW-welded section achieves a minimum yield of 240 MPa and UTS of 360 MPa, making it reliable for medium-duty structural and industrial framing. The symmetric closed profile enhances stiffness-to-weight ratio and enables clean, consistent welds on all four faces of the section.

• Cold-formed ERW square hollow section to IS 4923:2017 Grade YST 240
• Four flat external faces providing maximum bearing area for connection hardware
• Minimum 240 MPa yield and 360 MPa UTS meeting structural design requirements
• Precise square geometry enabling flush-face connections without packing plates
• Consistent internal dimensions suitable for sleeve joints and end-plate connections
• Surface free from major rolling defects for seamless paint or galvanizing adhesion
• 6 m standard length for efficient stacking, handling, and transportation logistics
• Suitable for cold punching, drilling, sawing, and plasma cutting on-site
• Closed cross-section superior to open sections in torsion-critical applications
• Produced under controlled rolling and forming conditions for batch-to-batch consistency

• Structural columns for ground-floor retail and commercial buildings
• Primary framing members in PEB and conventional steel buildings
• Medium industrial platform supports, catwalks, and access structures
• Overhead crane runway supports and monorail beam hangers
• Agricultural and rural infrastructure framing for sheds and barns
• Structural hollow section columns in composite construction
• Industrial equipment base frames and process plant support structures
• Modular container conversion framing and structural members