Expanded Metals

Expanded Metals Manufacturers

Expanded Metal is made from sheets of solid metals that all are slit and stretched with each stroke of the upper die, forming a raised diamond pattern.
This pattern is called regular or standard. This 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 pasing them through a cold, roll reducing mill.
Expanded metal also can be manufactured in heavy gauges for applications such as walkways, ramps, and catwalks of all types. Frequently, the heavier gratings and catwalks are used in industrial plants for flooring and stain treads.
Due to the flexibility in materials and the sizes that it can be manufactured, expanded metal has a large application in filtration purposes. Thicker sizes with apertures above ½” also has certain general purpose applications like partitioning and covering for security.
Manufactured in Mild Steel (M.S.), Galvanised Iron (G.I.), Stainless Steel 304, 316 (S.S.) Aluminum ( AL.) from 0.5 mm opening to 50 mm opening in all possible thickness

Expanded Metal Terminology

Expanded Metal Style Designation: Expanded metal mesh products are designated by a series of numbers that identify a given style. The first number is the nominal diamond dimension Short Way of Design (SWD). The second number used in conjunction with the first number MAY specify the gauge of metal, weight per hundred square foot, or may have some other significance. Therefore, the word “GAUGE” SHOULD NEVER BE ADDED TO THE STYLE DESIGNATION. Grating products are designated by weight per square foot of the finished product.
Expanded Metal Strands: The individual slit metal strips, or slides of an expanded metal pattern. Strand thickness in standard expanded metal mesh is the gauge or thickness of the sheet or coil from which the expanded metal was produced. In flattened expanded metal, it is the overall thickness of the finished sheet. Strand width in standard expanded metal mesh is the amount of metal fed into the expanding machine, which is slit and stretched with each stroke of the upper die. In flattened expanded metal, it is as the name implies, the width

Percent Open Area: The amount of open area to determine the amount of light or air passage.
SWD: The distance from a point on a bond to a corresponding point on the following bond measured across the Short Way of Design. This distance is also sometimes referred as “pitch SWD”.
LWD: The distance from a point on a bond to a corresponding point on the following bond measured across the Long Way of Design. This distance is also sometimes referred as “pitch LWD”.

SWO: Short Way of Opening, the distance measured from the inside of the bond across to the inside of the bond SWD.
LWO: Long Way of Opening, the distance measured from the inside of the bond across to the inside of the bond LWD.
Bond: The intersection of two strands and it is always the width of two strands.
Overall Thickness: The actual measurement of the thickness of the mesh measured at the bond.

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SPECIFICATIONS