If you are considering 5005 aluminum for your application, understanding the metal’s mechanical properties is where to start. Having this foundation ensures you can achieve the best performance in your project.
Whether you’re an expert or newbie, this article will teach you all there is to know about 5005 aluminum.
5005 Aluminum Alloy Explained: What is it?
Aluminum 5005 is a wrought alloy widely known for its excellent corrosion properties. You’ll often find 5005 applied in architectural projects as well as industrial projects.
All 5xxx aluminums provide exceptional strength due to their magnesium content. However, 5005 contains a minimal amount of magnesium, so it offers the least strength in the 5xxx series. At the same time, magnesium is kept low enough to prevent corrosion stress cracking.
5005 is hardenable to a few tempers by cold working. In the laboratory, you achieve H32 (¼) hard, H34 (1/2) hard, and soft annealed O tempers. 5005’s ease of cold forming and impressive thermal conductivity also make it ideal for a wide number of projects.
What Is The Chemical Composition of 5005 Aluminum
5005 alloy primarily consists of base aluminum and magnesium as the main alloying element. For more details, you can check the guide on Magnesium Alloy. Other elements we include are Chromium, Manganese, Silicon, and others. For a more detailed understanding, find below the complete chemical chart of 5005 aluminum:
What Are The Physical Properties Associated With 5005 Aluminum
5005 exhibits consistent physical properties across O, H32, H34, H38 and other tempers. Although slight variations exist depending on the severity of strain hardening. Below, you can find the typical physical properties of regular 5005 aluminium.
Density:
5005 aluminum is easy to work with since it is a lightweight alloy. It has a density of 2.70 g/cm³ or 2700 kg/m³ in engineering terms.
Like all other aluminium alloys, 5005 is lighter than copper or stainless steel. The lighter weight gives 5005 a practical advantage in applications where weight is a factor.
Melting range:
The melting range of 5005 aluminum alloy is around 632–657 °C. Aluminum is a pretty soft metal. This is why its melting point is low compared to copper or stainless steel.
Thermal expansion:
5005 has a thermal expansion coefficient of 23.5×10⁻⁶/K. Aluminum displays a higher rate of thermal expansion than metals like copper or stainless steel. Therefore, it tends to produce more loosened connections.
If you plan to use 5005 for high-speed machining, talk with your manufacturer about how to control aluminum thermal expansion challenges. For more details, you can check the guide on the thermal expansion of aluminum.
Thermal conductivity:
With a thermal conductivity of 200 W/m·K, 5005 aluminum transfers heat more efficiently than stainless steel. This makes 5005 suitable for heat sinks and electronic appliances. For more details, you can check the guide on thermal conductivity of aluminum.
Electrical Conductivity:
5005 has an electrical conductivity score of 50-52% IACS. As electricity passes through your material, only a small amount is lost as heat.
Specific Heat Capacity:
5005 aluminium has a specific heat capacity of 900 J/kg.K
Modulus of Elasticity:
The modulus of elasticity for your 5005 aluminum stands at 69 GPa. This means your metal will exhibit moderate stiffness and maintain rigidity under normal working conditions.
Poisson’s Ratio:
The Poisson’s ratio for 5005 aluminum is 0.33, which is the standard for aluminum alloys.
Mechanical Properties & Tempers of 5005 Alloy
5005 aluminum cannot withstand heat strengthening. Manufacturers use cold working techniques to achieve various tempers such as H32, H34, and soft annealed O temper.
O temper refers to soft annealed 5005. H1 refers to strain-hardened only. H3x refers to 5005 aluminum that has been subjected to strain hardening and stabilization. Below you can check the table comparing these tempers and their mechanical properties.
| Temper | Yield (0.2% proof) | Tensile Strength | Elongation |
| O (annealed) | ~35 MPa | 105–145 MPa | 12–22% |
| H14 | ~115 MPa | 145–185 MPa | 1–6% |
| H34 | ~105 MPa | 135–180 MPa | 2–7% |
| H38 | — | >180 MPa | 1–4% |
Hardness: If hardness is the primary factor in your project, H14 might be the optimal choice. The H14 temper offers Brinell hardness of 47 HB and proof stress of 120 MPa. This makes H14 more resistant to wear and stress than other tempers.
Fabrication: Machinability, Forming, Welding & Finishing
Let’s discover conventional fabrication techniques for 5005 aluminum:
Machinability of 5005 Aluminum:
5005 aluminum offers poor machinability, especially in the O temper. The alloy can still be machined, but you must follow precautionary steps. Notably, hard tempers such as H34 and H38 are slightly easier to machine.
Formability of 5005 Aluminum:
Aluminum 5005 is known for its excellent formability, especially in the O or H32 tempers.
Although it is not hardenable by heat, 5005 can be significantly hardened via cold bending, drawing, stamping, or roll forming. This good formability gives manufacturers a smooth job of shaping the metal into highly precise components.
Weldability of 5005 Aluminum:
5005 aluminum has an exceptional welding response. You will achieve a smooth result using electric, gas, or resistance methods. Filler alloys of 5005 or alternate grades are mandatory during welding. But take note, if you weld strain-hardened 5005, affected regions may lose strength.
Anodizing & Surface Finish of 5005 Aluminum:
You can anodize all aluminum alloys to achieve a desired finish. However, decorative anodizing is only recommended for 5005.
When you anodize 5005 to prevent atmospheric damage, the surface film is superior to alternatives such as 3003. But note that streaks might occur when using 5005. So, if the finish you need is highly individualized, communicate with your manufacturer that you need a special anodizing quality.
5005 Aluminum Corrosion Resistance & Environmental Performance
If you work in construction or marine, you will come across numerous 5005 alloy appliances. These industries prefer 5005 because it provides excellent corrosion. It is also highly durable and won’t need frequent repairs.
In addition, owing to its unique mechanical properties, 5005 is the most conducive Al alloy to welding. This is 5005 is widely regarded as the most suitable aluminum grade for anodizing. For more details, you can check the guide on what is the best aluminum grade for anodizing.
Also, 5005 aluminum retains excellent corrosion resistance against rust, acids, and moisture. During manufacturing, we limit the magnesium content to prevent corrosion stress cracking. This condition is prominent in alloys with over 3.5% Magnesium.
Industries That Rely on 5005 Aluminum Alloy
5005 aluminum proves to be useful in many industries. These include
Renewable Energy
You can use 5005 aluminum to build the roofs and cladding of solar panels. Manufacturers prefer this metal because of its atmospheric resistance and good energy-conductive properties.
Transportation Industry
You can also use 5005 to produce road signs and name plates. Due to its excellent anodizing finish, this material is perfect for signage products.
In transport, 5005 is also used for manufacturing small boats, gas lines, and mechanical components. These appliances require good resistance to corrosion in saltwater and alkaline environments. And 5005’s mechanical profile suits the job.
Packaging Industry
Due to its excellent anodizing response, you can use 5005 to make decorative packaging. Examples include drink containers and cosmetic packaging such as perfume bottles, lipstick casings, and jewelry boxes.
Architectural Industry
5005 is the material of choice for Architectural facades and decorative panels where high strength is a factor. 5005 also proves to be useful when you want to build curtain walls, roofing parts, ceilings, and window frames due to its durability and superior anodized finish.
Electronics and Electrical
If you work with electronics, you will notice that 5005 is used in a wide number of electrical appliances. From conductor wires to busbar strips and electrical enclosures, 5005 is favored in electrical applications where thermal and electrical conductivity are primary factors.
General Manufacturing
You can use 5005 aluminum to produce refrigerator panels, kitchen utensils, and cookware because it offers good thermal conductivity and corrosion resistance. 5005 is also suitable for manufacturing office desks, home furniture, lighting panels, and other household appliances.
Commercial and Industrial Applications
5005’s resistance against acids and chemicals outshines many aluminum alloys. Therefore, it is a superior choice for food and chemical processing applications such as storage equipment. The durability of 5005 also makes it ideal if you want to build high-performance HVAC systems.
Comparison with Related Alloys
If you are just getting your feet wet in material science, you might confuse 5005 with other aluminum alloys. But you must keep in mind that all aluminum grades have varying properties. And therefore, they are best suited to different applications.
Let’s compare 5005 with common alternatives to see how it shapes up:
5005 vs 5052:
5052 provides higher strength than 5005 aluminum. However, 5052 is less receptive to cold forming, and it has a poorer anodizing finish than 5005.
Therefore, if your next project is a signage or decorative application, 5005 alloy is the superior choice. Meanwhile, 5052 emerges as the optimal choice for structural and marine applications where durability is the main factor.
5005 vs 3003:
Grade 3003 aluminum offers slightly better formability and affordability than 5005. 3003 also stands out in general manufacturing applications such as roofing and cookware. However, 3003 cannot match 5005 in terms of anodizing quality and strength.
Hence, if you are considering which metal to use for your project, choose 3003 for cost-friendliness and general-purpose applications. In contrast, choose 5005 for a superior decorative finish and resistance to corrosion.
Choosing the Right Alloy for Your Project
The ideal alloy for your project depends on a balance of strength, surface finish, and atmospheric resistance.
5005 is a non-heat-treatable aluminum alloy that is ideal when aesthetics and durability matter more than raw strength. Its anodizing response makes it the optimal choice for signage and visible surfaces such as curtain walls.
That said, 5005’s fair strength and non-heat-treatable nature might not be fit for high-load or high-friction appliances. In such a case, you might find 6061 aluminum to be the optimal choice.
Also, among all 5xxx aluminum alloys, 5005 sheet contains the smallest concentration of magnesium. This means it offers the lowest strength in the family. If your application needs exceptional strength, 5052 aluminum is a better alternative. The metal sacrifices anodizing quality but provides superior performance when strength is the deciding factor.
Lastly, ease of fabrication plays a huge role in your choice of alloys. 5005 is easy to form and weld, but its machinability is poor in the soft O temper.
For high-speed CNC machining, it is better to work with 5005 in harder tempers like H34 or H38. These variations improve shaping and cutting performance while offering an acceptable degree of corrosion resistance.
Conclusion:
5005 is one of the best grades when you need a superior anodizing finish and good atmospheric resistance.
By applying what we’ve learnt here, you can maximize the potential of this metal. However, if you want to ensure the correct settings for your project, consult JieJiaCNC today.
FAQs:
Is 5005 marine grade?
5005 is a marine grade aluminum alloy. It provides excellent seawater and atmospheric resistance. Therefore, it is a superior choice if you want to build durable marine parts, roofing and architectural appliances.
What is the weight of 5005 aluminium sheet?
The weight of 5005 sheet or plate depends on its thickness and dimension. But as a general rule of thumb, 1m of 5005 sheet with a thickness of 1 mm will weigh approximately 2.7 g/cm.
What is the number name of 5005?
The number 5005 is designated by the Aluminum Association (AA) to identify this particular alloy. It belongs to the 5xxx series, which includes all non heat treatable alloys that contain Mg (magnesium) as the primary alloy.
What is the expanded form of 5005?
5005 is not an acronym. The first digit represents the family of magnesium based alloys. Meanwhile, the following three digits differentiate this alloy from grades within the same series.
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