Aluminium Sheets, Coils, Pipes and Extrusions in Bangalore

Most buyers already know the form, so that is how the range is organised. Flat-rolled material, meaning coil, sheet and plate, is covered on the aluminium coils, sheets and plates page, with thickness bands, tempers and a weight formula. Patterned floor plate has its own page on aluminium chequered plates. Thin-gauge material for cable wrap, insulation laminates and fin work sits under foils.

Round pipes, flats, strips, wires and profiles are all extruded or drawn, and they share one page: aluminium pipes, flats and extrusions. That is where 6063 versus 6061 versus 6082 is explained.

Pure aluminium is soft. Adding manganese, magnesium or magnesium plus silicon gives the alloys that do real work. The table below lists the alloys we are asked for most often, with their Indian Standard designation and the nearest Aluminum Association number. Indian and AA designations are close but not always identical in chemistry, so if your drawing names one system, quote that one.

Two rules of thumb help. Alloys in the 1xxx, 3xxx and 5xxx families get their strength from cold rolling and cannot be heat treated, so you buy them in an H temper. The 6xxx family is heat treatable, so you buy it as T4, T5 or T6.

For most fabrication work, the alloy, temper and certificate matter more than the brand on the coil. Buyers still ask for a mill by name, usually because a drawing, a tender or a client approval list says so. If yours does, tell us at the enquiry stage. The background on each producer is on the Hindalco aluminium and Balco aluminium pages.

Every lot can go out with a test certificate from a Government-recognised test house, as our letterhead has always said. For aluminium that report normally shows the chemical analysis against the alloy limits and, where you ask for it, tensile strength, proof stress and elongation for the temper ordered. If a mill test certificate is available for the lot, we pass that on too.

A common snag: a buyer orders 6061 and the drawing says T6, but nobody writes T6 on the purchase order. Annealed 6061 has roughly half the tensile strength of 6061-T6, and the part will not perform as designed. Put the temper on the PO and on the certificate request, and the problem never comes up.