Aluminum

Aluminum Alloys

A unique combination of properties makes aluminum one of the most versatile engineering and construction materials available. It is light in mass, yet some of its alloys have strengths greater than those of structural steel. It has high resistance to corrosion under most applications. In addition, aluminum has good electrical and thermal conductivities, and high reflectivity to both heat and light.

Aluminum can be easily formed and machined, and readily accepts a wide variety of surface finishes, although in most applications it needs no protective coating. Almost any method of joining can be used on aluminum – riveting, welding, brazing or soldering. Because it is so easy to work with, it can present an affordable alternative to many cheaper but less workable materials. Aluminum is available as sheet, strip, plate, bars, rounds, pipe and tubes.

Due to the diversity of its properties, aluminum is used in almost every industry for a wide range of products. 

A sample of these aluminum products include:

  • Frames and body components for vehicles, aircraft, ships, railcars and construction equipment
  • Windows, doors, siding and decorative architectural parts
  • Housings, enclosures and cabinets for electronics, electrical equipment and panels. Housings for equipment used outdoors are often manufactured using aluminum
  • Storage and pressure vessel tanks
  • Stampings and castings for engine and motor components, heat exchanger and other high wear, high heat applications

Aluminum Alloy Designations

For all the reasons just mentioned, aluminum is constantly increasing in popularity and there are many aluminum alloys used to meet the demands of different industries and applications. To readily identify the different groups of aluminum and alloys, the Aluminum Association has created a system for designating wrought aluminum and wrought aluminum alloys. This system is based on established limits for chemical composition.

The system uses four-digit numerical designations to identify wrought aluminum alloys. The first digit indicates the major alloying element. The second digit, if other than zero, denotes a modification in the basic alloy. The third and fourth digits form an arbitrary number which identifies the specific alloy in the series. The broad categories are shown below:

Copper (Cu)

2XXX

Manganese (Mn)

3XXX

Silicon (Si)

4XXX

Magnesium (Mg)

5XXX

Magnesium and Silicon (Mg and Si)

6XXX

Zinc (Zn)

7XXX

Other Element

8XXX

Unused Series

9XXX

O’Neal Steel carries a full inventory of aluminum angles, beams, channels, bar, plate, sheet, pipe and tubes.

Angle

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Aluminum angle is available with square or rounded corners and with equal or unequal legs (the sides of the piece). Used primarily for general structural applications...

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Beam

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Aluminum beams are used for structural applications where greater strength, light weight, and corrosion resistance are required. Due to the material strength and its light weight...

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Channel

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Aluminum channels are constructed using a vertical web with top and bottom flanges at a 90 degree angle to the web. Inside radius corners provide additional strength to the structure...

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Bar

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Aluminum bar is an extruded aluminum product available flat, square or rounded. Bar is used for stamping, casting or machining a finished product. Aluminum’s anti-corrosion...

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Plate

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Aluminum plate is used as a raw material for parts as diverse as automotive side panels, storage tank walls, architectural panels and signs. The versatile properties...

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Sheet

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Aluminum sheet is the one of the most widely used forms of aluminum in industry. It is used for extruded, drawn and stamped products,

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Pipe

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Aluminum pipe is a tubular extruded product with outside diameter (OD) and wall thickness (WT) measurements that must conform to set sizes. The standard measurements...

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Tube

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There are different kinds of aluminum tubing, with the most common and least expensive extruded tube. Extruded tube is manufactured using the porthole method to produce a seamless, strong tube

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Grating

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Aluminum bar grating is manufactured with either I-Bar or rectangular bearing bars and can be used almost anywhere that open flooring is needed for air, light and heat transmission.

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Expanded & Perforated Metal

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Aluminum expanded metal is a metal sheet that has been simultaneously slit and stretched into a rigid, non-raveling mesh with diamond-shaped openings. It provides a screening effect...

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Grip Strut

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Aluminum grip strut is safety grating that provides a higher level of support than standard stair tread grating. It provides a very good load-bearing capacity in ratio to its weight

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Custom Extrusions

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Custom extruded shapes are for which unique dies are designed, built, and maintained for the exclusive use of the customer. Virtually all manufacturing and construction industry segments use aluminum extrusions.

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For inquiries, call us today at 800-861-8272.