ThePipingMart Blog Grades 5026 Aluminium Alloy – Composition, Properties, and Uses

5026 Aluminium Alloy – Composition, Properties, and Uses

Aluminium 5026

Aluminum 5026 is an alloy aluminium that has excellent corrosion resistance, good formability, and high weldability. It is commonly used in chemical processing, food processing equipment, marine applications, and structural components. Let’s take a closer look at this versatile alloy’s composition, mechanical properties, physical properties, uses, corrosion resistance, heat treatment and machining capabilities.

5026 Aluminium Composition

AL 5026 is an alloy composed of aluminum (97.4%), copper (0.2%), iron (0.7%), manganese (0.2%), silicon (0.1%) and zinc (1%). This combination gives it a tensile strength of 20-30 ksi and yield strength of 15-20 ksi or greater than 20 ksi, depending on the tempering conditions. It also has a Brinell hardness between 80 to 85 HBW or 8 to 12 HRC depending on the tempering condition. Its electrical conductivity ranges between 30-60% IACS while its thermal conductivity ranges between 100-120 BTU/hr/ft/F°C or 0.090-0.110 cal/cm/sec/°C depending on the tempering condition used for heat treatment.

Aluminum (Al) 88.2 to 94.7
Magnesium (Mg) 3.9 to 4.9
Manganese (Mn) 0.6 to 1.8
Silicon (Si) 0.55 to 1.4
Iron (Fe) 0.2 to 1.0
Zinc (Zn) 0 to 1.0
Copper (Cu) 0.1 to 0.8
Chromium (Cr) 0 to 0.3
Zirconium (Zr) 0 to 0.3
Titanium (Ti) 0 to 0.2
Residuals 0 to 0.15

5026 Aluminium Mechanical Properties

Alloy 5026 is the perfect choice for projects requiring exceptional strength and durability. This grade of aluminium is particularly sought after due to its combination of formability, corrosion resistance, weldability and mechanical properties. Its ability to maintain its strength even at extreme temperatures or atmospheres make it a favourite choice in aerospace, transport, marine and defence applications. Those seeking maximum reliability need to look at Aluminum 5026.

5026 Aluminium Physical Properties

Grade 5026 is a versatile alloy that is primarily composed of, you guessed it, aluminium! It has superior strength and formability, making it a popular choice in construction. In addition, the alloy’s low density ensures its lighter weight when compared to other metals and alloys. Moreover, Aluminium 5026 offers increased surface hardness due to its manganese content, and provides superior corrosion resistance when exposed to weathering or salt water. This makes it an excellent choice for manufacturing products such as motor boats and military vehicles. Clearly Aluminum 5026 has many beneficial physical properties that make it a great choice for various industries.

5026 Aluminium Uses

5026 Aluminum has many applications due to its exceptional properties such as corrosion resistance and weldability which makes it ideal for use in chemical processing equipment, food processing equipment, marine applications and structural components requiring both high strength and excellent corrosion resistance such as bridges, towers and poles among others where it is often used as an alternative to steel or stainless steel components due to its lighter weight and better corrosion resistance in comparison with those materials. Additionally it can be used in welding rods due to its excellent weldability characteristics making it ideal for use when joining similar alloys or other metals together such as stainless steel or carbon steel components when needed because it has higher ductility than other alloys allowing it to bend without cracking during welding operations allowing for a better quality joint with fewer defects in comparison with other materials that may require preheating prior to welding operations in order to prevent cracking during welding operations which can cause costly delays on any project requiring welding operations that utilize this material.

Corrosion Resistance

5026 alloy offers excellent corrosion resistance against most acids including hydrochloric acid (HCl), sulfuric acid (H2SO4) nitric acid (HNO3) as well as chlorides making it ideal for use in chemical processing equipment where these substances are present since it does not corrode easily like other alloys such as aluminum 6061 do under contact with these substances thus prolonging the life span of any component made out of this material when compared with those made out of lesser quality materials such as aluminium 6061 which corrodes more easily under contact with corrosive agents like HCl or H2SO4 which are common substances found in chemical processing plants worldwide thus making this material ideally suited for these types of applications where exposure to corrosive agents is common place due to its superior corrosion resistance characteristics when compared with other materials available on the market today especially when considering cost effective solutions for any project requiring parts made out from this material due its lower costs compared with more expensive alternatives like stainless steel components which offer superior corrosion resistance but at much higher costs associated with them when compared with those made out from aluminium alloys like aluminum 5026 which offer comparable performance at much lower costs associated with them making them far more attractive solution from both performance and cost perspective when weighed against more expensive options available today on the market .

Heat Resistance

Additionally, this material offers good heat resistance up to 350°C / 662°F allowing components made out from this material to withstand temperatures up to 350°C / 662°F without experiencing significant losses in mechanical properties allowing these parts last longer even under extreme temperature conditions, making them ideal choice whenever high-temperature resistant parts are required such as those found on engines, exhaust systems, engine blocks, turbochargers etc.

Heat Treatment

Aluminum 5026 is a low-carbon aluminium alloy popularly used for automotive wheels and other applications. It needs special heat treatment to increase its strength and hardness. This involves heating up the material until it reaches a specific temperature, holding it for the duration required to optimize any desired properties, and then cooling it in an atmosphere to allow the best possible form of grain structure formation. Heat treatment of Aluminum 5026 is extremely complex, as it requires expertise and experience to understand the numerous factors involved. With proper heat treatment, however, its qualities, such as excellent corrosion resistance, high electrical conductivity and tensile strength, can be fully optimized, making this alloy an ideal choice for various applications.


Aluminium 5026 machining is a precise, cost-effective way to manufacture components in various industries. This specialized process involves metals that are usually more difficult to machine and tend to require higher machining temperatures. Aluminum 5026 machining offers greater rigidity and strength with improved surface finishes on slender features. Furthermore, it delivers improved cutting speeds with reduced tool wear, resulting in enhanced tool life and fewer disruptions due to tool changes, increasing productivity during production runs. With shallow depths of cuts, high fabricating rates, and superior usability across multiple industries, Aluminium 5026 machining is designed for precision results.


Aluminium 5026 welding is a reliable process of joining different aluminum components together. It involves melting the metals to be welded and then filling them in with a filler metal that helps seal any gaps or inconsistencies between the various pieces. This method of welding allows for strong and durable bonds as they are less prone to breakage or corrosion. It is also relatively light, making it ideal for a range of applications where weight is an important factor. Aluminium 5026 welding is often used in fabrication, aerospace engineering and marine construction projects due to its versatility and strength.


As we have seen Aluminum 5026 has many desirable properties that make it ideal for use in many different industries ranging from chemical processing plants where corrosive agents are present, food processing plants, marine applications, automotive industry, among others, where both heat resistant parts are required along with superior corrosion resistant qualities that make aluminium 5026 one the best options available today thanks to its combination of superior mechanical properties along with excellent corrosion resistance combined with good formability characteristics along with good machinability that allows engineers design parts using this alloy saving time by not having worry about cracking during machining operations plus its ability withstand temperatures up to 350°C / 662°F making suitable choice whenever high-temperature resistant parts are required. All these factors combined make aluminum5036 one popular option among engineers who need durable yet cost-effective parts that can last longer even under severe operating conditions.

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