The AST YST 240 Light Duty 40 NB MS Round Pipe - (2.9 x 47.8 mm) - 6 mtr Length is a structurally and hydraulically certified Light Duty round pipe from AST PIPES in YST 240 mild steel, manufactured to IS 1239:2004 (Mild Steel Tubes, Tubulars, and Other Wrought Steel Fittings). This 47.8 mm OD × 2.9 mm wall section (40 NB) in 6 m standard lengths delivers consistent wall uniformity, a smooth internal bore for low-friction flow, and a minimum yield of 240 MPa — perfectly suited for medium-duty structural, industrial, and mechanical piping. The Light Duty classification confirms it meets IS 1239:2004 pressure and dimensional requirements and is suited to low-pressure fluid distribution and light framing applications.

• Certified YST 240 Light Duty ERW pipe meeting all requirements of IS 1239:2004
• Precise 47.8 mm OD with 2.9 mm wall: consistent roundness and flush seam throughout 6 m
• Duty class LD: engineered for suited to low-pressure fluid distribution and light framing applications
• Consistent ERW weld quality: clean, flush seam on both internal and external pipe surfaces
• Tensile strength 360 MPa for reliable performance under structural and hydraulic loads
• Standard 6 m cut lengths with square ends for accurate joint detailing and fit-up
• Suitable for water supply, gas distribution, structural columns, and general engineering use
• Weld-ready surface with minimal surface scale from prime coil inputs throughout
• Equal hoop strength in all directions: no orientation-specific design or detailing required
• Full quality documentation: heat number, grade, duty class, dimensions, and MTC available

• Heat exchanger shells, boiler feed lines, and steam distribution piping
• Hydraulic cylinder barrels, pneumatic actuator bodies, and precision bore tubes
• Sports facility structures: goal posts, floodlight poles, and grandstand frames
• Modular construction and prefabricated building structural tubular components
• Cold-storage and refrigerated warehouse structural frames and racking uprights
• Military and defence fabrication: shelters, antenna masts, and field structures
• General engineering fabrication: custom frames, supports, and structural inserts