Perforated Ducting Perforated metal can be made into perforated ducting in mild steel sheet from 6mm to 25mm thickness. Perforated in a parallel or staggered arrangement to meet your specific requirements. Various metal widths and lengths available. Finishes usually are offered in mild steel but can be galvanized or painted to customers order. Stainless steel perforated ducting is available to satisfy health and safety requirements in the food and chemical industries. A fine aperture is sometimes required in combination with high load bearing properties. A solution may be obtained by placing a thinner, finely perforated sheet on top of the thick plate, which has larger holes. Connection of the two is obtained either by tack welding, or, if the thinner sheet must be removed for cleaning purposes, countersunk screws are applied. The perforated plate can be manufactured in various steels, measures, standard models and special designs that are tailored to the needs of each industry. Engineers, architects and designers also are finding increasingly uses for the metal plates perforated in various presentations of design and materials. Decorative stainless steel perforated metal, non-magnetic, type 304 or 316. The type 316 provides greater resistance to corrosion, making it suitable for photographic industries, food, chemicals and shipbuilding. Sheet thick with reinforced edges Tolerance in the size of the sheet metal + /-5mm Dimensions: Square opening, Hex opening, Oblong, Special Sizes of perforated sheets in stainless steel 304: 500x500mm, 1000x500mm