Engineered for dependable structural and fluid conveyance performance, the AST YST 240 Medium Duty 15 NB MS Round Pipe - (2.6 x 21 mm) - 6 mtr Length by AST PIPES is a certified Medium Duty ERW round pipe in YST 240 structural steel aligned with IS 1239:2004 (Mild Steel Tubes, Tubulars, and Other Wrought Steel Fittings). The 21 mm × 2.6 mm (15 NB) cross-section in 6 m lengths delivers balanced wall thickness providing reliable performance under moderate pressure and structural loads, consistent bore diameter, and reliable designed for medium-pressure fluid conveyance and standard structural applications — essential for industrial plumbing, gas lines, structural columns, and medium-duty fabrication works. Every section is IS-marked with certified mechanical properties, ensuring design confidence from specification through to site installation and commissioning.

• IS 1239:2004 Medium Duty pipe in YST 240 — IS-marked for certified structural and hydraulic assurance
• Section: 21 mm OD × 2.6 mm wall | 15 NB — balanced wall thickness providing reliable performance under moderate pressure and structural loads
• Manufactured via ERW process for consistent, strong, and flush weld seam integrity
• Yield strength 240 MPa enables efficient sizing for reduced steel tonnage and cost
• Standard 6 m lengths ready for immediate workshop fabrication or site deployment
• Excellent formability — cold-bending possible to standard radii without cracking or wrinkling
• Circular cross-section delivers equal hoop strength and uniform bending resistance in all directions
• Compatible with flanged, screwed, grooved, and welded connection systems throughout
• Passes hydrostatic test requirements as per IS 1239:2004 duty-class norms where specified
• Clearly bundled and labelled by grade, duty, and size for easy site identification

• High-pressure water and process fluid transmission lines in industrial plants
• Piling and ground anchoring works in civil and infrastructure foundation engineering
• Heavy structural columns, struts, and compression members in high-load buildings
• Crane runway structures, gantry columns, and jib crane mast installations
• Shipbuilding and marine structural tubulars for above-waterline applications
• Mining equipment frames, conveyor gantry columns, and ore-handling structures
• Electrical and telecommunications conduit protection for underground utilities