Spark MS SHS Spark YST 310 MS SHS - (40 x 40 x 2.0 mm) - 6 mtr Length is a cold-formed electric resistance welded square hollow section conforming to IS 4923:2017, Grade YST 310, with 40 mm outer dimension and 2.0 mm wall thickness supplied in standard 6 m lengths. Engineered to deliver a minimum yield strength of 310 MPa and ultimate tensile strength of 450 MPa, this section is purpose-built for heavy structural columns, high-load bearing frames, and primary structural applications. The symmetric square closed profile provides equal stiffness about both principal axes, making it the preferred structural tube for column, post, and multi-directional framing applications.

• Manufactured to IS 4923:2017 Grade YST 310 with certified mill test documentation
• Minimum yield strength of 310 MPa ensuring structural design compliance
• Minimum ultimate tensile strength of 450 MPa for reliable load-bearing capacity
• ERW cold-forming process ensuring consistent wall thickness on all four faces
• Square cross-section providing equal stiffness about both principal structural axes
• Smooth external surface suitable for painting, powder coating, or galvanizing
• Standard 6 m lengths enabling efficient transport, handling, and site cutting
• Excellent weldability on all four flat faces using MIG, TIG, and SMAW processes
• Tight dimensional tolerances for accurate fit-up in fabricated column assemblies
• Closed hollow section providing superior torsional resistance under eccentric loading

• Heavy structural columns and primary posts in large industrial complexes
• High-load transmission tower leg members and primary vertical structural sections
• Crane runway primary structural columns and gantry support post members
• Offshore and marine structural deck columns and primary vertical frame members
• Heavy machine base column legs and press frame primary structural post members
• Primary structural columns in multi-storey and high-rise steel-framed buildings
• Bridge deck support column members and pedestrian bridge primary post sections
• Heavy PEB primary frame columns and long-span structural post members