Construction steel and metals for buildings, plants and infrastructure

Industrial sheds, mezzanines, pipe racks, canopies and equipment supports are built from mild steel angles, channels, beams, flats and plates. In India these are normally specified to IS 2062, with E250 the everyday grade for general structural work and higher grades where the designer needs more strength. Our angles, channels and sections and plates cover the common sizes; tell us the section designation and length and we will confirm what is available.

For boiler foundations, tanks and other parts where the steel sees heat or pressure, boiler quality (B.Q.) plates are a separate product with their own certification.

Steel that will be galvanised after fabrication should be ordered with that in mind. Silicon and phosphorus in the steel affect how thick and how grey the zinc coating grows, so mention galvanising on the enquiry and check the chemistry on the certificate.

Chequered plate gives a raised pattern that stops boots slipping, which is why it is used for stair treads, walkways, trench covers, loading platforms and vehicle ramps. Mild steel chequered plate is the default for heavy traffic. Aluminium chequered plate weighs about a third as much and does not rust, so it suits mezzanines, vehicle bodies, cleanrooms and coastal sites.

Galvanised plain and corrugated sheet covers sheds, site offices, hoardings and temporary works. The zinc coating protects the steel by acting as a barrier and, where it is scratched, by corroding sacrificially first. Aluminium sheet is used for cladding, flashing and insulation jacketing on pipes and ducts.

Roof sheets fail at the fixings and the overlaps first. Use the right sealing washers and keep cut edges painted, especially on coastal or chemical-plant roofs, where the zinc layer is used up faster than inland.