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 value of the sheet and provide air flow, making it a flexible resolution for a lot of applications. The most typical metals used for expanded metal sheet embody steel, stainless steel, and aluminum, though it can 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 cutting machine. The knives move back and forth in a uniform pattern, slicing the sheet in alternating cuts, while the sheet moves by way of the machine.

As the knives minimize, they simultaneously push down on the newly lower sections, stretching them apart into "ribbons." The ribbons stay hooked up at the uncut sections, which turn out to be the corners of open diamond shapes in an expanded mesh sheet. The scale, form and positioning of the knives and the thickness of the metal sheet could be changed to create openings of different dimensions for a variety of applications.

Types of Expanded Metal

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

Customary Expanded Sheet: A finished product as it comes off the press after being cut and expanded. Typically referred to as raised expanded metal, because of the alternating ridges fashioned by overlapping metal strips.

Flattened Expanded Sheet: An ordinary expanded sheet that is then cold rolled, leaving a flat, smooth surface. Flattened expanded sheet is about 5% lighter than commonplace 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 each 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 is durable, simple 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 strength and inflexibleity.

It is commonly utilized in a wide range of applications, such as:

Machine guards

Catwalks, platforms and stair treads


Stair and balcony railing mesh

Window security




And much more