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Expanded Aluminum

A reliable source for Expanded Metal information and leading Expanded Metal Companies & Manufacturers.

The framework of expanded metals is actually a solid piece of construction that exhibits an open grid like pattern. Read More…

Expanded Aluminum Expanded aluminum is a rigid and non-raveling metal framework of interlinked bars created by a machining process in which a sheet or coil is simultaneously slit and drawn.
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Leading Manufacturers

Tamaqua, PA  |  888-218-2260

Our expanded metal is ideal for a wide range of applications and our teams will work with you every step of the way to guarantee your satisfaction. Our goal is to exceed your expectations and we take pride in providing our customers with outstanding services.

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Remaly Manufacturing Company, Inc. $$$

Carbondale, PA  |  800-225-7373

At Hendrick Manufacturing, we are metal perforators with capabilities to take you from design to performing secondary fabrication operations.

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Hendrick Manufacturing Company $$$

Downsview, ON  |  866-312-8540

For 25 years, Dupont provides both welded and woven screens and perforated and expanded metal products. Aluminum insect screening, brass and copper wire mesh, decorative perforated metal and mild steel perforated metal are among the many customized products in our inventory. We also have several types of low carbon steel, stainless steel, galvanized and more.

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Dupont Wire Ltd. $$$

Wilkes-Barre, PA  |  800-432-8081

We sell Steel, Stainless, Aluminum, Brass, and Copper products and have the capability to process material to customer specifications.

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Bloomsburg Metal Company $$$
placeholder image Remaly Manufacturing Company, Inc. Hendrick Manufacturing Company Dupont Wire Ltd. Bloomsburg Metal Company

While a number of other metals are common in expansion, the properties and characteristics of aluminum make it ideal for industrial, commercial and residential use. Aluminum is a silvery-white non-ferrous metal that is both durable and aesthetically pleasing. With lighter weight and better corrosion resistance than expanded steel, aluminum is used in construction, automotive, water and air filtration, cooking, packaging, aquarium, aerospace, power generation, marine, medical and electronics industries.

Expanded Metal High Current Resistors Expanded Aluminum - Dexmet Corporation

Unlike many metals that become brittle in cold temperatures, aluminum actually strengthens at low temperatures making expanded aluminum enclosures essential for refrigeration applications as well. Pure aluminum, however, is very ductile and malleable, which limits its use. To improve strength to weight ratio, expanded aluminum is often alloyed. Alloyed aluminum is used for support, security and protection in the form of grilles, guards, floors and walkways.

Because metal expansion results in a pattern of uniform openings, air, sound, liquid and light can pass through these barriers for improved ventilation, visibility and acoustics. Compared to punched or perforated metal, expanded aluminum is cost effective as it slits the metal leaving no waste. As the third most abundant element in the Earth's crust, the cost of aluminum is already much lower than many competing metals, such as titanium.

Metal expansion is a fairly simple, but effective process that has changed little throughout the years. Sheets or plates of aluminum are fed into an automated expansion machine. In the machine, several dies are used to slit the metal hundreds or even thousands of times depending on the size and desired outcome. This creates an offset alternating pattern of small cuts. While the dies are in motion, the metal is simultaneously drawn through a press or roller.

The combination of heat and pressure stretches the metal and causes the diamond, round or irregularly shaped holes to swell. The solid aluminum is transformed into a mesh-like screen. Despite the gaps, the sheet is still a solid piece of construction and therefore has no seams, welds or joints that might work loose over time in other metallurgical processes.

The use of a single sheet is important as the interconnected network of strands and bonds distribute weight evenly so no one portion is overloaded. The size and density of the apertures or percentage of open space plays a significant role in the weight capacity of expanded aluminum and should be taken into account with regards to intended use. Gauge, length, width and height of the metal frame should also be considered.

Expanded Aluminum Informational Video