Shop / Spec Sheets. Round perforated metal is a sheet of material, such as perforated carbon steel, that contains holes punched by a circular die. Round perforated metal from Direct Metals is lightweight, versatile, economical, and customizable. Round hole perforated sheet can be used fuding metal vents, metal ...Our round aluminium rods and bars are manufactured in structural aluminium alloy 6060. They can be used as architectural sections for windows, doors, curtain walls, interior fittings, lighting, furniture and office equipment. Round Bar is ideal for structural applications where surface finish is important. We carry sizes ranging from 10mm to 39 ...Below is a table showing the outside, inside and wall thickness dimensions of each Aluminium Tube that well sell via this website. Imperial Size. (Outside Dia x Wall Thickness) Metric Conversion. (Outside Dia x Wall Thickness) Nominal Internal. Bore Size. 5/16” x …provides Aluminum Alloy Sheets & Plates, Round Bar, Pipes & Tubes, Forged Circluding Aluminum Alloy 7075, Aluminum Alloy 2024, Aluminum Alloy 1100, 2011, 5052, 6061, 6082, 3003 & more.