Home/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). Expanded Metal Terminology Supplier, Trader, and wholesaler in Gujarat, India.
The second number used in conjunction with the first number MAY specify the gauge of metal, weight per hundred square foot, Aluminium Expanded Metal, 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 the 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 the 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 to 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 to 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 thickness of the mesh measured at the bond.
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