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What Is Expanded Metal?

What Is Expanded Metal?

Expanded metal is a sheet of metal fabricated with a regular pattern of diamond-formed openings. These openings reduce the load and price of the sheet and provide ventilation, making it a versatile answer for a lot of applications. The most common metals used for expanded metal sheet embrace metal, stainless metal, and aluminum, though it is also made from titanium and copper.

How is Expanded Metal Made?
expanded metalExpanded sheet is made from a single sheet of metal that has been slit by a row of knives mounted on an industrial die chopping machine. The knives move back and forth in a uniform pattern, slicing the sheet in alternating cuts, while the sheet moves by means of the machine.

As the knives lower, they simultaneously push down on the newly lower sections, stretching them apart into "ribbons." The ribbons remain connected on the uncut sections, which turn out to be the corners of open diamond shapes in an expanded mesh sheet. The dimensions, shape and positioning of the knives and the thickness of the metal sheet might be modified to create openings of various dimensions for a variety of applications.

Types of Expanded Metal

Expanded metal sheet comes in completely different profiles, together with:

Customary Expanded Sheet: A finished product as it comes off the press after being minimize and expanded. Often referred to as raised expanded metal, as a result of alternating ridges shaped by overlapping metal strips.

Flattened Expanded Sheet: An ordinary expanded sheet that's then cold rolled, leaving a flat, smooth surface. Flattened expanded sheet is about 5% lighter than standard expanded sheet.

Expanded Metal Grating: A heavy duty expanded sheet manufactured from carbon metal sheet or plate. Expanded metal grating has no joints or welds, as every sheet is a single piece of sturdy steel. Ideally suited for catwalk and platform applications.

A Versatile Product
Expanded sheet metal is a flexible and economical product that's durable, straightforward to work with, and provides low wind resistance. It affords one-piece development that won’t unravel under normal circumstances, and will hold its shape for a lot of years. The strands and bonds of the diamond-formed trusses add power and inflexibleity.

It is commonly used in a wide range of applications, reminiscent of:

Machine guards

Catwalks, platforms and stair treads


Stair and balcony railing mesh

Window security




And far more

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