Description

Product Overview The Allied Cold Formed Circular Hollow Section (CHS) is a high-strength structural pipe designed for heavy loading. Manufactured under the BS EN 10219 standard, it utilizes non-alloy and fine grain steels to ensure superior weldability and mechanical performance.

Technical Specifications

• Standard: BS EN 10219

• Section Types: Cold formed welded structural hollow sections.

• Available Grades: S235JRH, S275J0H, S275J2H, S355J0H, S355J2H.

Dimensional Tolerances (BS EN 10219) Strict manufacturing controls ensure the pipe maintains its structural integrity:

• Outside Diameter (OD): ± 1% with a minimum of ± 0.5mm and a maximum of ± 10mm.

• Out of Roundness: 2% for hollow sections where the diameter-to-thickness ratio does not exceed 100.

• Straightness: 0.20% of total length.

• Mass (Weight): ± 6% on individual pipe length.

Size Availability We stock a wide range of large diameters and wall thicknesses:

• Diameters: 177.8mm, 193.7mm, 219.1mm, 244.5mm, 273mm, 323.9mm, 355.6mm, 406.4mm, 457mm.

• Wall Thicknesses: Common options include 4.0mm, 5.0mm, 6.0mm, 6.3mm, 8.0mm, 10.0mm, 12.0mm, 12.5mm, and 16.0mm.