Hi-Tech YST 355 15 NB MS CHS (21.3 x 0.8 mm) - 6 mtr Length
Hi-Tech YST 355 15 NB MS CHS (21.3 x 0.8 mm) - 6 mtr Length
Specifications
| Diameter | 21.3 mm |
|---|---|
| Length | 6 m |
| Nominal Bore | 15 NB |
| Thickness | 0.8 mm |
Description
Hi-Tech Pipes MS CHS Hi-Tech YST 355 15 NB MS CHS (21.3 x 0.8 mm) - 6 mtr Length is a circular hollow section manufactured by the electric resistance welding process, conforming to IS 1161:2014 Grade YST 355, with an outer diameter of 21.3 mm, nominal bore of 15 NB, and 0.8 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 round hollow section is purpose-built for medium-duty structural columns, industrial frames, and mechanical/structural tube applications. The circular closed cross-section provides equal stiffness in all directions and superior torsional rigidity, making it the ideal structural tube for multi-directional load applications.
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 | 0.8 mm |
Mechanical & Chemical Composition
Main Specifications
| Base | Detail |
|---|
Chemical Composition
| Base | Detail (%) |
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