AST YST 240 25 NB MS CHS - (33.7 x 4 mm) - 6 mtr Length
AST YST 240 25 NB MS CHS - (33.7 x 4 mm) - 6 mtr Length
Specifications
| Diameter | 33.7 mm |
|---|---|
| Length | 6 m |
| Nominal Bore | 25 NB |
| Thickness | 4 mm |
Description
AST PIPES's AST YST 240 25 NB MS CHS - (33.7 x 4 mm) - 6 mtr Length is a high-quality cold-formed ERW Circular Hollow Section in YST 240 structural steel produced to IS 1161:2014 (Steel Tubes for Structural Purposes). The 33.7 mm OD × 4 mm wall (25 NB) hollow circular cross-section in 6 m lengths is a small-diameter circular section suited to handrails, light frames, and secondary structural members engineered for outstanding weldability, superior torsional resistance, and elevated yield strength for demanding structural columns and medium-span trusses — all essential for industrial frameworks, mezzanine columns, portal frames, and architectural exposed tubes. Processed from prime HR coil through precision roll-forming and ERW welding, each tube delivers dimensional consistency, certified mechanical properties, and a smooth internal bore throughout.
Key Features:- Produced to IS 1161:2014 with certified mechanical properties for YST 240
- Precise 33.7 mm OD × 4 mm wall (25 NB) — optimal torsional rigidity and axial capacity
- Consistent 4 mm wall enabling reliable stress distribution under all load types
- ERW welding with continuous online seam quality monitoring during production
- Standard 6 m cut lengths for minimal site wastage and efficient handling
- Low carbon content delivering superior ductility, impact resistance, and notch toughness
- Machinable — suitable for drilling, plasma/laser cutting, and end-facing operations
- Anti-corrosion oil-coating option available for extended storage and transit protection
- Consistent roundness and straightness within IS tolerance for easy erection and alignment
- Full traceability via heat number with mill test certificates (MTC) available on request
- High-rise building core bracing, column sections, and moment frame members
- Architectural exposed columns and feature tubes in commercial and residential buildings
- Sports facility structures: goal posts, floodlight masts, and stadium seating supports
- Agricultural structures, greenhouse pipe arches, and poly-tunnel frame hoops
- Solar panel tracker structures, photovoltaic torque tubes, and array pile foundations
- Offshore and marine structural tubulars for above-waterline platform sections
- Telecommunications masts, antennae support poles, and broadcasting infrastructure
Specifications
| Base | Detail |
|---|---|
| Diameter | 33.7 mm |
| Length | 6 m |
| Nominal Bore | 25 NB |
| Thickness | 4 mm |
Mechanical & Chemical Composition
Main Specifications
| Base | Detail |
|---|
Chemical Composition
| Base | Detail (%) |
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