Hi-Tech YST 355 15 NB MS CHS (21.3 x 1.4 mm) - 6 mtr Length
Hi-Tech YST 355 15 NB MS CHS (21.3 x 1.4 mm) - 6 mtr Length
Specifications
| Diameter | 21.3 mm |
|---|---|
| Length | 6 m |
| Nominal Bore | 15 NB |
| Thickness | 1.4 mm |
Description
The Hi-Tech Pipes MS CHS Hi-Tech YST 355 15 NB MS CHS (21.3 x 1.4 mm) - 6 mtr Length is an ERW circular hollow section produced to IS 1161:2014 Grade YST 355, offering a 21.3 mm outer diameter at 15 NB with 1.4 mm wall thickness in standard 6 m lengths. Guaranteeing minimum yield of 355 MPa and UTS of 490 MPa, this section delivers dependable structural performance for medium-duty structural columns, industrial frames, and mechanical/structural tube applications. The circular hollow form provides the highest torsional rigidity of any closed thin-walled structural section for a given weight, enabling slender column designs and efficient structural tube applications across industrial and construction environments.
Key Features:- Manufactured to IS 1161:2014 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 manufacturing process ensuring uniform wall thickness around full circumference
- Circular cross-section providing equal stiffness and strength in all radial directions
- Smooth external surface suitable for painting, powder coating, or galvanizing treatment
- Standard 6 m lengths enabling efficient transport, handling, and site cutting
- Excellent weldability using MIG, TIG, and SMAW processes with standard procedures
- Superior torsional rigidity compared to equivalent open or rectangular structural sections
- Compatible with standard saddle, flange, and socket connection systems
- Medium-duty structural columns and posts in industrial and commercial buildings
- Truss chord and diagonal circular tube members in roof and floor systems
- Mezzanine floor column supports and elevated platform circular post members
- Industrial machine base circular column legs and equipment support post frames
- Pre-engineered building (PEB) secondary circular column and framing members
- Structural gate and entrance post frames, security bollards, and barrier posts
- Steel staircase circular post members, balustrade columns, and handrail uprights
- Conveyor support circular posts and material handling vertical frame tube members
Specifications
| Base | Detail |
|---|---|
| Diameter | 21.3 mm |
| Length | 6 m |
| Nominal Bore | 15 NB |
| Thickness | 1.4 mm |
Mechanical & Chemical Composition
Main Specifications
| Base | Detail |
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Chemical Composition
| Base | Detail (%) |
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