Why Work With Aluminum 6061?

Pure aluminum has properties that are fixed, in other words permanent. These properties include strength, malleability, durability, melting point and others. An alloy such as 6061 aluminum, which includes 6061 aluminum plate and 6061 aluminum tooling plate, is the combination of the pure aluminum metal with other alloying elements, creating the aluminum alloy hybrid material. The blending of the properties of the various elements produces a stronger, more durable, and more flexible metal that may be used for particular purposes. When aluminum is alloyed with different metals, its strength can come close to the strength of many steel alloys, but remain light weight.

There are two general classes of aluminum alloys – wrought alloys and casting alloys. Wrought alloys include 6061, 2024, 7075, & 7050. They are cast and then sent through the extruding, rolling, or forging process as they are worked into particular shapes. Casting alloys like A380 may be poured into molds that are cast in sand to produce the desired shape. Heat treating may be used on some of these alloys to increase their hardness and strength.

6061 Aluminum Properties

6061 aluminum is among the most commonly available heat treatable aluminum alloys used in commercial applications. Its primary alloying elements are magnesium and silicon. Other metallic elements that comprise the alloy include copper, iron, zinc, chromium, titanium, manganese. As a lightweight, medium to high strength, and economic material, aluminum alloy 6061 sets the standard. Some alloys manufactured previously to 6061 had the problem of stress corrosion cracking. However, the addition of chromium into this alloy gives it corrosion resistance.

The various advantageous properties of 6061 aluminum, including 6061 aluminum plate and 6061 aluminum tooling plate, include toughness and structural strength, solid corrosion resistance, good surface finish, machinability, resistance to seawater and atmosphere, weldability, and the ability to be joined. Many other types of aluminum alloys are difficult to weld resulting from their chemical composition and poor conductivity. Although 6061 aluminum alloy can lose strength when welded, the material may be heat treated again and aged artificially to help restore its strength.

Anodizing and other coatings may be applied to 6061 aluminum, an alloy which possesses exceptional connection properties. As an experienced aluminum supplier, we choose our suppliers very carefully. As we all know there are many foreign producers of Aluminum, but they are not all good. Our customers demand the highest quality at a competitive price and high quality doesn’t just need to look good, but it needs to machine well, remain dimensionally stable, and meet all required specifications. We provide 6061 aluminum plate with a satin brushed finish that provides the plate with consistent surface finish ready for anodizing. Aluminum alloy 6061 possesses better mechanical and physical properties than many other casted products like A380. In addition, if you specify 6061 Aluminum Tooling Plate, you can obtain enhanced flatness tolerances in thicknesses up to 4”. This is available only with aluminum 6061-T651 and not in other alloys.

Aluminum alloy 6061 can be easily cold worked and formed in its annealed condition. Through the use of common operational methods, the processes of stamping, bending, and tapping can be applied to the material, which is versatile and easy to manage.

6061 Aluminum Uses

Aluminum alloy 6061, including 6061 aluminum plate is used widely as a construction material and often in automotive manufacturing applications. Some of the products and components that are made with 6061 include motorcycles, camera lenses, brake components, yachts, marine fittings, scuba tanks, archery equipment, electrical fittings, fishing reels, valves and couplings, and bicycle frames. Many roof structures with wide spans, including those for arenas and bridge decks, are made with this type of aluminum-magnesium-silicon alloy.

For extrusion purposes, 6061 aluminum alloy is one of the most versatile and commonly used. Due to the fact that it possesses strength for many structural applications, it is often referred to as a structural aluminum. The combination of properties it possesses makes it applicable for a variety of applications.

It takes familiarity with aluminum alloys to know which one is best for a particular application. Although distributors do not employ engineers to design for end, use they are experienced with Aluminum Alloys and will provide you with the specification data for you to make your structural calculations. Working with an experienced aluminum supplier can help you in the process of material selection. At Howard Precision, we strive to help our clients find the perfect material match, whether it involves 6061 aluminum plate, 6061 aluminum tooling plate or another aluminum alloy material. We are here to help you achieve success in your projects and applications.

If you have requirements related to aluminum alloys or aluminum extrusions for a project or application, our professionals at Howard Precision Metals can help. For more information about our products and services, give us a call today at 800.444.0311 or go to our website and request a quote.

Applications of 2024 Aluminum Alloy

Aluminum is similar to steel as one of the most available and frequently selected metals for numerous commercial and industrial applications. Whether the application involves commercial aircraft construction or the manufacture of a host of consumer products, 2024 is an often chosen aluminum alloy. This alloy possesses excellent strength and outstanding resistance to fatigue. Consequently, it is highly ideal for use in numerous aerospace applications. It is the perfect option for applications requiring metals with optimum strength-to-weight ratios. At Howard Precision Metals, we are your source for the 2024 aluminum alloy products you need for your applications.

Aerospace and Other Applications

Alloy 2024 was introduced by Alcoa in 1931. It was the first Al-Cu-Mg alloy to have a yield strength approaching 50,000-psi and generally replaced 2017-T4 as the predominant 2XXX series aircraft alloy. The strong fatigue resistance makes the Alloy 2024 a continual specification for many aerospace and structural applications. The machinability as well as the workability of both 2024 and 2024 T351 also make them perfect for automotive part production.

Aluminum 2024 is a common feature in aircraft industry applications as a result of its high-strength qualities. This alloy, however, also has relatively poor resistance to corrosion. When used in aircraft sheet applications As a result, it is often given aluminum or Al-1Zn cladding for protection, which may at the same time lower its fatigue strength. While it has questionable capabilities at resisting corrosion, it possesses good machinability characteristics. These properties are crucial for applications requiring machined parts and precision fitting. Because of the alloy’s exceptional grain structure, aluminum 2024 is also ideal for applications that require thread rolling and cold heading. The chief alloying element of 2024 aluminum is copper. This alloy may be welded, but only effectively by means of friction welding.

The following applications make common use of 2024 aluminum alloy:

  • Aircraft structural elements such as fuselage and wing structures that carry tension forces
  • Aircraft fittings
  • Truck wheels
  • Hardware of various types
  • Hydraulic Manifolds
  • Other transportation vehicle components

Shear ribs and webs and the wing and tension members mentioned above include 2024 aluminum plates – these are structural configurations that require good strength, fatigue resistance, and stiffness. Aluminum 2024 sheet alloy is used in military and commercial aircraft fuselage skin applications.

Aluminum 2024 is most commonly stock in plate and bar forms, sheet with Alclad protection, and some custom extruded shapes. Most bar is stock cold finished as the round stock is often machined on screw machines requiring tighter diameter tolerances to hold. Due to the high strength of a 2024 alloy, it is difficult to extrude, and there are only a few extruders that have the capabilities to extrude 2024 with limited complexity. It can be produced in an annealed condition as well as various tempers – T3, T4, and T8. It is not usually forged, however, unlike its closely related alloy, 2014 aluminum.

Aluminum alloy 2024 is highly-suited to handle high strength requirements. It is used frequently for fittings that must withstand fatigue. Impact applications where typically components would fatigue over time will often be engineered out of 2024 as well as applications where temperature fluctuations may result in thermal shock.

Aluminum alloy 2024 is also used commonly for worm gears, fuse parts, couplings, hardware, colts, shafts, clock parts, computer components, and other structural parts. As an age-hardening alloy, 2024 aluminum reacts well to heat treating applications. Aluminum 2024-T3 is ideal for use in RV restoration and repair projects because of its shiny finish appearance.

The structural mechanical benefits of aluminum 2024 can vary significantly based on its particular temper. Some of the most common available tempers of this alloy are 2024-T351, 2024-T851, 2024-T6, 2024-T4, 2024-T3, 2024-O. Increased tensile strength among other improvements are noticeable when 2024 alloy is manufactured in these tempers. Difficult machining processes like deep hole drilling are a strong suit for 2024 heat treated.

Although aluminum alloy 7075 is used often for high strain and stress applications, 2024 aluminum also has exceptional resistance to cyclic fatigue, as stated above high cycle counts on impact applications. It also has more strength than 6061 aluminum, but less versatility.

Heat-Treating 2024 for Enhanced Strength

Heat treatment operations can be used on various aluminum alloys in the 2xxx, 6xxx, and 7xxx series, and this includes 2024. The process of heat treating for 2024 involves heating the alloy to a pre-determined temperature that allows the mixing or homogenizing of the alloy elements into the base metal. Then, the metal undergoes solution heat treating that involves the quenching of the metal in a solution that keeps the elements in position.

As the piece cools down, atoms of copper and other elements precipitate from the solution. Through this process, the alloy increases strength by aging – this involves the interaction of compounds with the aluminum metal’s superstructure. Based on the actual process of heat treating and aging, the 2024 aluminum may be assigned designations such as 2024-T351, 2024-T4, 2024-T851, or others.

Machinability and Forming

Aluminum alloy 2024 possesses solid machining capabilities in its annealed and heat-treated conditions. However, this aluminum alloy may not undergo hot forming.

Our team can provide 2024 aluminum plates ranging in thicknesses from 1/4 in. to 6 in. These plates may be used for various applications, including hydraulic manifolds, fuselage structures, shear webs and ribs, and tension members. Your applications can be properly outfitted with 2024 aluminum in areas that require structural strength and fatigue resistance.

At Howard Precision Metals, we are your source for aluminum alloy products to help you achieve your project specifications and goals, including 2024 aluminum plates and other 2024 aluminum products for aircraft and other industrial and commercial applications. For more information about how we can serve your aluminum alloy needs, give us a call today at 800.444.0311, or request a quote on our website.