Hariom MS RHS Hariom YST 355 MS RHS - (180 x 70 x 6 mm) - 6 mtr Length is a cold-formed electric resistance welded rectangular hollow section conforming to IS 4923:2017 Grade YST 355, with 180 mm depth, 70 mm width, and 6 mm wall thickness supplied in standard 6 m lengths. Engineered to deliver a minimum yield strength of 355 MPa and ultimate tensile strength of 490 MPa, this section is purpose-built for high-strength structural beams, heavy industrial frames, and demanding spanning applications. The rectangular profile provides greater bending strength about the major axis, making it the preferred choice for beam and spanning applications in structural steel fabrication.

• Manufactured to IS 4923:2017 Grade YST 355 with certified mill test documentation
• Minimum yield strength of 355 MPa ensuring structural design compliance
• Minimum ultimate tensile strength of 490 MPa for reliable load-bearing capacity
• ERW cold-forming process ensuring consistent wall thickness on all four faces
• Rectangular cross-section delivering superior major-axis bending resistance
• 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 beam assemblies
• Closed hollow section resisting torsional deformation under eccentric loading

• Heavy structural beams in large industrial complexes and commercial buildings
• Offshore and marine primary structural deck beams and spanning frame members
• High-load transmission tower horizontal cross-arm structural beam members
• Crane runway primary girder beams and hoist beam structural spanning sections
• Bridge deck primary beam members and long-span structural beam sections
• High-strength structural frames in petrochemical and heavy industrial plants