Apl Apollo's APL Apollo YST 240 Heavy Duty 25 NB MS Round Pipe - (4 x 33.3 mm) - 6 mtr Length combines the strength of YST 240 grade steel with a minimum yield strength of 240 MPa with tight dimensional control to serve medium-duty structural and plumbing applications. Produced as per IS 1239:2004 (Mild Steel Tubes, Tubulars and Other Wrought Steel Fittings), this 25 NB nominal bore ERW pipe with 4 mm wall × 33.3 mm OD wall and outer diameter specifications in 6 m standard lengths offers excellent weldability, smooth internal bore for fluid flow, and dependable structural integrity for both above-ground and below-ground installations.

• Conforms to IS 1239:2004 for quality and dimensional compliance
• Grade YST 240 with guaranteed mechanical properties for structural reliability
• Wall thickness: 4 mm — optimised for load and pressure ratings
• OD: 33.3 mm | Nominal Bore: 25 NB — compatible with standard fittings
• ERW manufacturing process ensuring consistent weld seam integrity
• Good machinability — suitable for drilling, cutting, and bending operations
• Uniform surface finish for smooth painting, galvanizing, or coating
• Low carbon content ensuring enhanced weldability and ductility
• Straightness within permissible limits for easy handling and erection
• Batch traceability and mill certification available on request

• Plumbing and sanitation systems in buildings and infrastructure
• Industrial process piping for fluid and slurry transport
• Structural tubular sections for mezzanine floors and platforms
• Heat exchanger shells and boiler feed water lines
• Conveyor structures, material handling frames, and racking systems
• Fencing, gate fabrication, and perimeter security structures
• Automotive and vehicle chassis sub-frame components