AST YST 310 135 NB MS CHS - (152.4 x 4.5 mm) - 6 mtr Length
AST YST 310 135 NB MS CHS - (152.4 x 4.5 mm) - 6 mtr Length
Specifications
| Diameter | 152.4 mm |
|---|---|
| Length | 6 m |
| Nominal Bore | 135 NB |
| Thickness | 4.5 mm |
Description
The AST YST 310 135 NB MS CHS - (152.4 x 4.5 mm) - 6 mtr Length manufactured by AST PIPES is a prime-grade ERW Circular Hollow Section in YST 310 mild steel aligned with IS 1161:2014 (Steel Tubes for Structural Purposes). Offering a 152.4 mm OD × 4.5 mm wall profile (135 NB) in 6 m standard lengths, this CHS is a large-diameter circular section engineered for primary structural columns, heavy trusses, and industrial frames delivering minimum yield of 310 MPa, excellent ductility, and a smooth external finish — making it a preferred structural and architectural tube for heavy-duty structural, high-load, and long-span applications. The circular profile's inherent torsional efficiency and equal bending capacity make it a go-to section for exposed structural columns and architectural applications.
Key Features:- Minimum yield: 310 MPa | Minimum tensile: 450 MPa — as per IS 1161:2014
- Circular cross-section 152.4 mm OD with 4.5 mm wall: maximum yield strength enabling slender, efficient circular sections under heavy combined loads
- IS 1161:2014 compliance with IS marking — guaranteed structural quality assurance
- Cold-formed process for tight dimensional tolerances and superior roundness control
- Standard 6 m lengths compatible with modular structural and architectural grid spacings
- Suitable for hot-dip galvanising, electrostatic powder coating, and intumescent fire treatment
- Equal bending resistance in all planes — no orientation-specific design or detailing required
- Compatible with standard weld-on flanges, end caps, saddle clamps, and rosette connections
- Prime HR coil input ensuring uniform grain structure and consistent mechanical properties
- Batch-identifiable tubes for quality traceability throughout the project lifecycle
- Industrial plant pipe racks, equipment skid frames, and reactor support structures
- Mining equipment frames, conveyor gantry columns, and ore-handling structure legs
- Crane runway columns, gantry uprights, and jib crane mast sections
- Shipbuilding and marine structural tubulars for hull and above-deck structures
- Overhead electrical transmission tower leg members and bracing tubulars
- Workshop jigs, fixture frames, and custom fabrication support structures
- Cold-storage and refrigerated warehouse structural frames and column supports
Specifications
| Base | Detail |
|---|---|
| Diameter | 152.4 mm |
| Length | 6 m |
| Nominal Bore | 135 NB |
| Thickness | 4.5 mm |
Mechanical & Chemical Composition
Main Specifications
| Base | Detail |
|---|
Chemical Composition
| Base | Detail (%) |
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