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Expanded STEEL SHEET - made from sheets of solid metal that are slit and stretched with each stroke of the upper die, forming a raised diamond pattern. This pattern is called regular or standard. The pattern varies by the gauge and type of material and the size of the diamond. The sheets can also be flattened by rollers for an optional style by passing them through a cold, roll-reducing mill. Technical Info from Arch Basic parameters: sheet thickness: 0.25 - 4.0 mm sheet width: up to 1250 mm aperture size: 2.5x6 mm to 25x75 mm Sheet width and length of an aperture can be selected individually Description By Arch offers expanded metals made in Stainless Steel, Aluminum, Iron. Uses in industrial plants, as fencing or reinforcing materials in floors, inclines, closings, pallets, stairs, etc. Expanded metal is similar to perforated metal, but it has been cut, rather than punched, and stretched into a shaped framework. Materials out of which expanded metal is made include sheets of steel, stainless steel, aluminum, tin, copper and plastic. Flattened expanded metal has been cold rolled to reduce thickness and increase surface smoothness. Using expanded metal is an ecologically-minded approach, as it is elaborated from discarded raw material. Expanded metal is basically transparent, has high resistance and excellent mechanical properties and is an excellent conductor. It can be made out of non-metal products such as plastic, which then makes it an insulator.