Hi-Tech YST 355 25 NB MS CHS (33.7 x 1.8 mm) - 6 mtr Length
Hi-Tech YST 355 25 NB MS CHS (33.7 x 1.8 mm) - 6 mtr Length
Specifications
| Diameter | 33.7 mm |
|---|---|
| Length | 6 m |
| Nominal Bore | 25 NB |
| Thickness | 1.8 mm |
Description
Hi-Tech Pipes presents the Grade YST 355 MS CHS Hi-Tech YST 355 25 NB MS CHS (33.7 x 1.8 mm) - 6 mtr Length, an IS 1161:2014-compliant ERW circular hollow section with 33.7 mm outer diameter, 25 NB nominal bore, 1.8 mm wall thickness, and 6 m standard length. Certified to achieve minimum yield of 355 MPa and UTS of 490 MPa, this tube is optimised for medium-duty structural columns, industrial frames, and mechanical/structural tube applications requiring isotropic strength and smooth external finish. The circular hollow section allows internal routing of cables and services while delivering full structural column and spanning capability with excellent torsional and bending performance.
Key Features:- ERW circular hollow section manufactured to IS 1161:2014 Grade YST 355
- Smooth circular exterior minimising wind resistance in exposed structural applications
- Minimum 355 MPa yield and 490 MPa UTS meeting IS 1161:2014 structural design requirements
- No corner stress concentrations — uniform stress distribution around full section
- Consistent internal bore suitable for sleeve joints, end-plate, and flanged connections
- Surface free from major defects for seamless paint or hot-dip galvanizing adhesion
- 6 m standard length for efficient stacking, transport, and on-site handling
- Suitable for cold punching, drilling, sawing, and plasma cutting at standard settings
- Closed circular section superior to open profiles in torsion-critical structural use
- Produced under controlled ERW process conditions for reliable batch-to-batch consistency
- Structural circular posts for retail, commercial, and mixed-use building frames
- Primary circular column members in PEB and conventional steel building systems
- Industrial platform support circular posts, catwalk columns, and access uprights
- Overhead crane support circular columns and monorail hoist circular post members
- Solar farm ground-mount primary circular post and structural frame members
- Structural circular tube members in composite and mixed-material construction
- Industrial pipe rack primary circular column and structural support post members
- Structural circular sections in container conversion and modular unit frames
Specifications
| Base | Detail |
|---|---|
| Diameter | 33.7 mm |
| Length | 6 m |
| Nominal Bore | 25 NB |
| Thickness | 1.8 mm |
Mechanical & Chemical Composition
Main Specifications
| Base | Detail |
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Chemical Composition
| Base | Detail (%) |
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