Are you looking to choose between aluminum alloys 6061 and 6063 for your next project? The differences between these two materials can be overwhelming. But don't worry! We're here to break it down for you.

You need to know the properties, applications, costs, pros and cons of both alloys before deciding which one is right for you. So let's get started!

Aluminum alloys are popular in many industries due to their strength, durability and corrosion resistance. Aluminum alloy 6061 is often used in structural components like bridges while 6063 is more commonly found in window frames and door frames.

Both have their own unique properties that make them suitable for different projects depending on your needs. Let's take a look at what each has to offer so you can decide which one will work best for you!

Introduction to Aluminum Alloys

Confused about which alloy to choose? Let's break it down and make sure you get the perfect fit!

Aluminum alloys are combinations of metals that create a stronger material than pure aluminum. These alloys can be used for a variety of applications, from structural components to aerospace engineering. They come in different grades, each with their own unique properties.

The two most commonly used aluminum alloys are 6061 and 6063, both prized for their strength and durability. Both of these alloys have similar characteristics but differ in their melting point and corrosion resistance.

6061 has a higher melting point than its counterpart, making it more suitable for welding applications while 6063 is better suited for anodizing or painting projects. Additionally, the corrosion resistance of 6061 is greater than that of 6063, making it ideal for outdoor use where exposure to moisture is present.

With so many different factors to consider when choosing an alloy, understanding the nuances between each one will help ensure you get the right product for your needs.

Properties of 6061 and 6063 Aluminum

Properties of 6061 and 6063 Aluminum

When it comes to selecting an aluminum alloy, you may be wondering what the differences are between 6061 and 6063. These two alloys have distinct differences when it comes to their strength and durability, formability and weldability, and corrosion resistance.

6061 is known to be one of the most versatile alloys with excellent machinability, while 6063 offers greater strength as well as improved anodizing and casting characteristics. Understanding these properties will help you make the best decision for your application.

Strength and durability

Struggling to decide between two alloys? Look no further than 6061 and 6063 for their superior strength and durability. Both alloys contain trace amounts of magnesium, silicon, copper, zinc, iron, and titanium which contribute to their increased corrosion resistance compared to other metals.

When it comes to mechanical properties, 6061 aluminum is the strongest alloy with a tensile strength of 41000 psi while its yield strength is 40 ksi. On the other hand, 6063 aluminum has a tensile strength of 28000-33000 psi and a yield strength of 21-23 ksi. This makes it ideal for projects that require bending or forming as well as those that require welding.

The superior durability offered by these two alloys makes them perfect for applications where performance is essential and failure is not an option. Whether you're looking for increased corrosion resistance or improved mechanical properties, both 6061 and 6063 aluminum can provide you with the reliability you need in your project.

Formability and weldability

If you're looking for a metal that offers great formability and weldability, 6061 and 6063 aluminum alloys are the way to go.

When it comes to forming these metals into different shapes, they both offer impressive results. 6061 is malleable enough to be bent and shaped around curved surfaces without cracking or breaking, while 6063 is ideal for complex shapes such as door frames and window frames due to its slightly softer properties.

When it comes to welding aluminum alloys together, there's no better choice than either of these two materials. 6061's high strength-to-weight ratio makes it easy to weld without sacrificing structural integrity, while 6063's slightly lower tensile strength makes it more suitable for manual TIG welding projects like furniture construction or ornamental pieces.

No matter what project you have in mind, whether large or small, the formability and weldability of aluminum alloys make them the perfect choice for your needs. So don't hesitate - get your hands on some 6061 or 6063 aluminum today!

Corrosion resistance

Aluminum alloys offer great corrosion resistance, so you won't have to worry about rust or other forms of deterioration ruining your project.

With aluminum 6061 or 6063, you can rest easy knowing that the material is designed to resist corrosion and oxidation. Both of these aluminum alloy grades are naturally resistant to corrosion and take on a layer of protective oxide film when exposed to oxygen in the air.

This makes them ideal for use in outdoor applications as they can withstand extreme weather conditions without corroding or degrading over time. Furthermore, both aluminum alloys have excellent weldability allowing them to be connected with other metals if desired.

So whether it's a decorative feature or functional piece, you can trust that it will stand up to the elements and maintain its integrity for years to come.

Applications of 6061 and 6063 Aluminum

If you're looking for an aluminum alloy for structural components, extrusion, or molding, the two most common options are 6061 and 6063 aluminum.

Both alloys have their own unique properties that make them suitable for specific applications, so it's important to understand the differences between them before making a decision.

In this discussion, we'll explore the various applications of 6061 and 6063 aluminum in detail.

Structural components

Struggling to decide between 6061 and 6063 aluminum for your structural components? Don't worry - we'll help you pick the perfect one! Both alloys have something to offer, whether you're looking for strength, corrosion resistance, or ease of machining.

Here's why:

  • 6061 is known for its exceptional strength-to-weight ratio, making it an ideal choice if weight is a concern.
  • 6063 offers superior corrosion resistance and electrical conductivity compared to other alloys in its class.
  • Both grades are easy to machine and weld into any shape or size.
  • With a wide range of hardness levels available, each alloy can be customized according to your specific needs.
  • Plus, they're both lightweight and affordable, giving you the freedom to choose without breaking the bank!

No matter which alloy you choose, rest assured that your structural components will be of the highest quality. So don't hesitate - find your perfect match today!

Extrusion and molding

Extrusion and molding

Discover how aluminum extrusion and molding can be tailored to meet your exact needs – from strength to corrosion resistance – without compromising on quality.

With aluminum extrusion, a profile is heated until malleable then pushed or pulled through a die of the desired shape, creating an object with dimensionally precise walls and surfaces. The process offers flexibility in design parameters such as wall thickness, cross-sectional area, length, and shape without additional machining or welding.

Aluminum extrusion is often used for production runs of 1000 units or more, but it can also be beneficial for smaller quantities.

Molding involves pouring molten metal into a pre-made cavity that's designed to give the material its desired shape when cooled. This method is ideal for projects requiring complex shapes with tight tolerances and intricate details, such as curved surfaces or hollow cavities.

It's perfect for low-volume production runs because no tooling costs are involved in creating the initial parts, although tooling may be required if modifications are needed down the line. Whether you choose 6061 or 6063 aluminum alloy depends on what your product requires – both offer excellent corrosion resistance and durability while allowing precision designs with high dimensional accuracy at an economical price point.

Cost Comparison

Don't settle for second best - get the best bang for your buck with 6061 or 6063! When it comes to cost comparison, both alloys are comparably priced. Depending on the quantity and size of your order, you may get a better deal on one over the other.

Here's what you need to know before making your decision:
- 6061 aluminum is slightly more expensive than 6063. However, it offers greater tensile strength and corrosion resistance compared to its counterpart.
- 6063 is often used in applications where lightweight and durability are key factors due to its lower density. It also has excellent machinability ratings and can be easily extruded into complex shapes.
- Both alloys offer good weldability characteristics, but again, the stronger alloy of 6061 is preferred in most cases when welding isn't necessary.
- If your application requires strength without extra weight, then opt for 6061; however if you wish to save money by using cheaper material then choose 6063 since it still offers plenty of durability benefits as well as being easier to work with during manufacturing processes such as extrusion or molding.

The final decision depends greatly on what type of product or part you plan to make with these specific alloys so take careful consideration when deciding which one will meet your needs most effectively while staying within budget constraints.

Pros and Cons of 6061 and 6063 Aluminum

Comparing 6061 and 6063 aluminum can be tricky, so here's a look at the pros and cons of each alloy:

6061 offers greater tensile strength than its counterpart, while 6063 is often lighter in weight - up to 30% lighter!

If you're looking for strength and durability, then 6061 aluminum might be your best bet. On the other hand, if you prioritize low weight without sacrificing structural integrity, then opting for the lightweight yet strong 6063 aluminum could give you just what you need.

Both alloys are incredibly versatile; it just depends on which qualities are most important to you. With either choice, you'll have access to an array of options that'll help make your project come alive!


No matter which alloy you choose, both 6061 and 6063 aluminum can be found in a variety of shapes and sizes, so you're sure to find the perfect fit for your project! These alloys are widely available at most hardware stores in sheet, plate, tube, or angle stock.

Plus, they come in a variety of thicknesses and sizes to suit most any application. So, whether you're making furniture frames or building outdoor structures, there's an aluminum option that'll work for you.

If getting your hands on the right type of aluminum is important for your project's success, then rest assured that 6061 and 6063 aluminum are both readily accessible from many suppliers.

Heat Treating 6061 and 6063 Aluminum

Heat Treating 6061 and 6063 Aluminum

Knowing which alloy to pick is only half the battle - heat treating them correctly can be the difference between success and failure. Heat treating either 6061 or 6063 aluminum requires a keen eye for detail, knowledge of the process, and an understanding of what you want to accomplish.

Both alloys are capable of being heat treated, but each responds differently when exposed to temperatures between 350-400°F. For instance, 6061 will become softer after it's been heated while 6063 will become harder. Knowing these differences can help you decide which alloy is best suited for your needs.

For example, if you plan on machining parts out of either material then choosing 6061 might be a better option because it softens under heat making it easier to work with than its counterpart. On the other hand, if strength and corrosion resistance are your primary concerns then opting for 6063 could provide those benefits due to its increased hardness upon heating.

Ultimately, picking the right alloy is essential but understanding how they respond to different temperatures is just as important when deciding which one is right for you!

Quality of Finished Products

Quality of Finished Products

When it comes to the quality of your finished product, both 6061 and 6063 aluminum can deliver, but you'll need to take into account how each alloy responds to heat treating.

6061 aluminum is known for its strength and durability, which makes it ideal for creating parts that will stand up to wear and tear. On the other hand, 6063 aluminum is more malleable and easier to work with in terms of shaping or bending the metal into intricate shapes.

Here's a quick overview of what each alloy can provide when it comes to your finished product:

  • 6061 Aluminum provides great strength - making it a good choice for load-bearing components like structural frames or automotive parts.
  • 6063 Aluminum offers excellent corrosion resistance - ideal for outdoor projects like patio furniture or window frames.
  • Both alloys have superior machinability - allowing for easy forming and fabrication of complex designs with minimal effort.
  • Both alloys offer excellent weldability - allowing you to join pieces together with ease.
  • The final appearance of both alloys is aesthetically pleasing - giving you a polished look that stands out from the crowd!

If you're looking for a high-quality finished product that will last through years of use, either alloy will serve you well – so go ahead and choose the one that best fits your project needs!


You have all the information you need to make a smart decision and create something beautiful that will bring joy for years to come!

With aluminum 6061 and 6063, you can be sure that whichever alloy you choose, your finished product will be of high quality. Ultimately, the choice between these two alloys is up to your own personal preference.

If strength and durability are primary goals, then aluminum 6061 is likely the best option. If an aesthetically pleasing finish is desired, then aluminum 6063 may be a better choice due to its higher level of corrosion resistance.

Whichever alloy you decide on, with its combination of strength and aesthetic appeal, aluminum can help you create something truly special.