Cast aluminum alloys are widely used in industry due to their high strength, low density, corrosion resistance and good machinability. They are used in mechanical engineering, aviation, construction, automobile and other industries where reliable and durable materials are needed.

Main properties of casting aluminum alloys

Cast aluminum alloys properties include:

• High strength and wear resistance;
• Resistance to corrosion in various environments;
• Ease of processing and good fluidity during casting;
• Good strength to weight ratio, which makes them ideal for the aviation and automotive industries.

Composition of casting aluminum alloys

Cast aluminum alloys composition includes aluminum as a base, as well as various alloying elements that improve their properties:

• Silicon (Si) – improves casting qualities, improves strength and wear resistance;
• Copper (Cu) – increases strength, but reduces corrosion resistance;
• Magnesium (Mg) – increases strength and corrosion resistance;
• Zinc (Zn) – improves mechanical properties, but reduces corrosion resistance;
• Iron (Fe) – reduces adhesion to molds, but worsens ductility.

Application of cast aluminum alloys

Cast aluminum alloys are used in many industries, including:

• Automotive industry – production of engines, pistons, wheel rims, suspension parts;
• Aircraft industry – production of lightweight and durable structures;
• Shipbuilding – creation of parts for marine transport;
• Mechanical engineering – production of housings, gears, pumps and other elements;
• Construction – production of profiles, fences and other structural elements.

Cast aluminum alloys are also used in the power industry, where they are used to manufacture housings for electrical equipment, cooling radiators and conductive parts. In the oil and gas industry, they are used to produce pipeline fittings, pumps and compressors that are resistant to aggressive environments. In the medical field, aluminum alloys are used to manufacture lightweight and durable structures, and in household appliances – for housings and parts of various devices.

What alloys are considered cast aluminum?

Cast aluminum alloys include various grades that differ in their chemical composition and mechanical properties. The most popular grades are: AK4, AK5, AK5M2, AK6, AK7, AK9, AK12.

Cast aluminum alloy grade AK4

Cast aluminum alloys AK4 are characterized by high strength and good corrosion resistance. They are used in the aviation and mechanical engineering industries, where rigidity and durability are important.

Cast aluminum alloy grade AK5

Cast aluminum alloys AK5 have good mechanical properties, high wear resistance and corrosion resistance. They are used to manufacture parts of automobile engines and body elements.

Cast aluminum alloy grade AK5M2

Cast aluminum alloys AK5M2 contain an increased amount of magnesium, which improves strength and corrosion resistance. Used in shipbuilding, aviation and mechanical engineering.

Casting aluminum alloy grade AK6

Casting aluminum alloys AK6 have high strength, resistance to high temperatures and good machinability. Used in the production of parts for aviation, mechanical engineering and automotive industry.

Casting aluminum alloy grade AK7

Casting aluminum alloys AK7 are characterized by high hardness and wear resistance. Most often used for casting complex structures subject to high loads.

Casting aluminum alloy grade AK9

Casting aluminum alloys AK9 have good fluidity, which makes them convenient for casting thin-walled parts. They are used in construction and electrical engineering.

Casting aluminum alloy grade AK12

Casting aluminum alloys AK12 contain a high percentage of silicon, which improves casting properties and corrosion resistance. They are used in the automotive and mechanical engineering industries.

Casting aluminum alloys are a wide class of materials used in various industries. Depending on the composition and properties, they are used in aviation, mechanical engineering, automotive engineering and other industries. The choice of alloy depends on the requirements for strength, corrosion resistance and other characteristics, which makes aluminum casting alloys a universal solution for the production of reliable structures.