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The versatility of aluminum is well documented; from its lightweight to affordability, ease of machining, and environmental friendliness, aluminum has been successfully used in many industries. Industrial aluminum profiles refer to the aluminum material suitable for use as a main component in industrial aluminum extrusion processes.
In the extrusion process, the chosen aluminum bar is extruded by melting the material forced into a particular die with the desired section shape. The mechanical and functional properties of the finished product depend on the selected aluminum profile. What factors then make one aluminum profile more suitable than another? These seven factors and considerations are used to highlight the differences:
1. Strength
Strength or durability refers to the ability of the aluminum profile to withstand pressure, damage, wear and tear that arises from the day-to-day use of the part as intended. It also refers to the ability of the part to withstand pressure and heat treatment. The maximum tensile strength is the amount of stretch or pulling the profile can take before its mechanical properties are permanently altered.
Generally, pure aluminum 1100 has the lowest strength, while the heat-treated alloy series of 2024 and 7075 are progressively higher in strength. The 5052 and 6061 offer medium to high mechanical strength.
2. Hardness
Hardness is different from the aluminum profile strength and is a factor in the aluminum profile’s chemical composition. The state of the aluminum profile also has a profound influence on the hardness of the profile.
The hardness matrix decreases from the 7 to 2,4,6,5,3 and 1 series in that order.
3. Corrosion Resistance
Corrosion resistance speaks to the ability of an aluminum profile to withstand the chemical changes to its structure arising from exposure to chemical and rust conditions.
In this case, the best corrosion resistance is seen in the 1 series. Next is the 5 series, then comes the 3, 6, 2 and 7 series in that order. In clearer terms, the Alloys 1100, 5052, and 6061 have excellent to very good mechanical properties, the 3003 and 6063 have decent corrosion resistance, while the 2 series is generally poor.
4. Weldability
Weldability refers to how easily an aluminum profile can be welded. The weldability of most aluminum profiles is generally very good. However, profiles of alloys 2024, 7075, and 2011 are inferior. Alloys 3003 and 1100 have excellent welding performances. The 5 series of aluminum profiles are particularly designed for welding.
5. Machinability
Machinability performance entails the ease of forming and machining an aluminum profile. This includes cutting, forming, and turning in some instances. Generally, the machinability of each aluminum profile may be affected by heat treatment or annealing. Annealed parts are very machinable and formable, while heat-treated aluminum materials are more challenging to machine. The alloys of 2011 are excellent for machining, by the 1100, 3003, and 6061 alloys.
6. Finishing
Aluminum profiles may be coated, anodized, polished and more to obtain the desired feel, look and finish. Depending on the end-use and environmental conditions where the part may be deployed, the aluminum profile for extrusion may need specific chemical and surface treatments to deliver on performance expectations.
7. End-use
By research and experience, certain aluminum profiles are more suitable for some industries than others. For instance, the Aluminium alloy 2011 and 1100 are broadly used in general machining and metal spinning, while the 2024 and 7075 are deployed in metal spinning and aerospace industries respectively.
Aluminum alloys 3003 are widely used to fabricate food and chemical equipment, while the 5052 alloys are applied in marine fabrications. Alloys 6063 and 6061 are best suited for structural and architectural applications.
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Faced with a variety of industrial aluminum profiles, it is often difficult for users to choose. Today, we will introduce some factors to be considered when choosing industrial aluminum profiles. When choosing industrial aluminum profiles, the following points should be considered:
Hardness is, of course, the first issue for users to consider. Of course, they are also extremely concerned about whether the hardness of aluminum profiles can meet the applicable standards. I directly related the first choice of hardness to the chemical composition added, and there is a certain influence in terms of the highest hardness that can be achieved. The hardness of 7 series, 6 series, 4 series, 2 series, 5 series, 3 series, and 1 series materials decreases.
Strength is an important factor to be considered in product production. When aluminum alloys are used as components, appropriate alloys need to be selected according to the pressure they can withstand. The strength of pure aluminum is the lowest, and the strength of the 2-series and 7-series heat-treated alloys is the highest, and the hardness and strength have a certain linear relationship.
Corrosion resistance includes chemical corrosion, stress corrosion resistance, and other properties. Generally, 1 series pure aluminum has the best corrosion resistance. The 5 series has good corrosion resistance, followed by the 3 and 6 series. The 2 and 7 series have relatively poor corrosion resistance. We should note the corrosion resistance. The principle of selection of properties depends on the occasion of their use. In the corrosive environment of high-strength alloys, various anti-corrosion composite materials must be used. In this way, the product can be effectively prevented from being corroded. Used more, the 5 series, and the 3 series are used more. It is unnecessary to choose the best 1 series pure aluminum material. It is also necessary to consider the cost. Generally, choose the appropriate one. Aluminum material will do.
Machinability includes formability and cutting performance. Considering that formability is related to the state. After selecting the corresponding aluminum alloy grade, it is also necessary to consider the strength range of various states. Generally speaking, aluminum with high strength is not easily formed, and the formability of the annealed material is the best after bending, stretching, deep drawing, and other forming processes of the aluminum material, while the formability of the heat-treated material is the worst. The machinability of aluminum alloy is poor, and the machinability is better for molds and mechanical parts.
The weldability of most aluminum alloys is good, and the representative ones are some aluminum alloys of the 5 series, which have excellent weldability. Relatively speaking, the weldability of the 2 series and 7 series is poor.
When users buy industrial aluminum profiles, their decorative properties are also very fancy. Generally, when aluminum materials are used in certain decorations or special occasions, they need to undergo anodized surface treatment and coating processing. and other processes and materials with better corrosion resistance have excellent anodizing performance, surface treatment performance, and coating performance.
Above, we talk about 6 factors to consider in Aluminium Profile selection. Now, more and more friends contact us for electric vehicle battery shells. Welcome to join us and communicate more. Welcome to provide a drawing consultation.
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