Spark YST 310 Square Hollow Section Spark YST 310 MS SHS - (72 x 72 x 4.0 mm) - 6 mtr Length is produced by ERW cold-forming to IS 4923:2017 with a 72 mm square cross-section and 4.0 mm wall thickness in standard 6 m lengths. Delivering a minimum yield of 310 MPa and tensile strength of 450 MPa, this SHS is engineered for heavy structural columns, high-load bearing frames, and primary structural applications where equal stiffness on all axes and weld-quality are critical. Its four flat external faces and precise corner geometry simplify connection detailing and allow accurate fit-up in fabricated frames, trusses, and column base assemblies.

• 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 310 MPa and tensile strength 450 MPa for design-critical structural applications
• Square hollow geometry offering optimal column action under axial compression loads
• Equal section modulus on both axes enabling symmetric multi-directional load resistance
• Mill surface suitable for direct fabrication, painting, or hot-dip galvanizing treatment
• Comprehensive range of sizes from small light profiles to large heavy structural sections
• Standard 6 m lengths compatible with standard transport and storage infrastructure
• Good notch toughness and elongation for structural safety under impact loading
• Dimensional accuracy per IS 4923 tolerances ensuring interchangeable and precise fit-up

• Primary structural columns in warehouses, logistics parks, and distribution centres
• Long-span truss primary vertical chord members in airport terminals and pavilions
• Heavy structural column framing in power stations and process plant facilities
• Structural sections for oil and gas platform primary column and topsides frames
• Rail over-bridge and road bridge primary structural column and post members
• Heavy crane gantry primary columns and crane structural vertical post members
• Primary structural columns in stadiums, arenas, and long-span grandstand frames
• Structural column sections in high-rise building perimeter and core frame systems