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What's Expanded Metal?

What's Expanded Metal?

Expanded metal is a sheet of metal fabricated with a regular pattern of diamond-formed openings. These openings reduce the burden and price of the sheet and provide ventilation, making it a versatile answer for many applications. The most typical metals used for expanded metal sheet include metal, stainless metal, and aluminum, although it can also be 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 reducing machine. The knives move back and forth in a uniform pattern, slicing the sheet in alternating cuts, while the sheet moves via the machine.

Because the knives lower, they concurrently push down on the newly reduce sections, stretching them apart into "ribbons." The ribbons remain connected on the uncut sections, which become the corners of open diamond shapes in an expanded mesh sheet. The size, form 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, including:

Commonplace Expanded Sheet: A completed product as it comes off the press after being reduce and expanded. Typically referred to as raised expanded metal, due to the alternating ridges fashioned by overlapping metal strips.

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

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

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

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

Machine guards

Catwalks, platforms and stair treads


Stair and balcony railing mesh

Window security




And far more