Aluminum Grades

Aluminum grades can demonstrate a wide variation of properties depending on their alloying elements and undergone heat treated conditions.

Aluminum GradesAluminum grades exhibits ease of fabrication, good appearance, good corrosion resistance, high fracture toughness, good weldability, and high strength-to-weight ratio. Each aluminum grade is characterized by its excellent mechanical and chemical properties and the elements found in their composition. The selection of aluminum mainly depends on the intentions and applications necessary and working conditions. The intended application allows manufacturers and other material users to rank the characteristics and properties of each aluminum grade from least to most important. This somehow helps in narrowing down the lists of aluminum grades and their suitability in varying applications and treated conditions.

There are important factors to consider upon the selection of aluminum grades including weldability, workability, machinability, corrosion resistance, heat treating, and strength. These factors may greatly affect the performance of each aluminum grades upon each of their designated uses.

1100 pure aluminum; readily stamped, spun, forged, and drawn used for architectural, industrial, and home uses
2014 precipitation hardening alloy; has good strength after heat treatment truck frames, aircraft structure
2024 high strength, age hardening aluminum alloy aircraft structures, truck wheels, screw machine products, orthopedic braces and equipment, scientific instruments
2219 age-hardenable aluminum used for applications at elevated temperatures
5083 non-treatable alloy; has good corrosion resistance used for welded, unfired pressure vessels, drilling rigs, transportation equipment, TV towers, missile component, marine
5086 high strength structural alloy; non heat-treatable missile components, transportation equipment, drilling rigs, TV towers, welded pressure vessels
6061 heat treatable aluminum alloy used for heavy-duty structures, marine and truck components, furniture, railroad cars, tank fittings, furniture, wire products, pipelines
6063 extrusion alloy; heat treatable furniture, stair rails, windows, pipe railing
7049 forging alloy; heat treatable; stress corrosion cracking resistant structural forgings, missile and aircraft industries
7050 heat treatable; has high strength and toughness aircraft and other structure
7075 heat treatable; has good properties at low temperatures used in aircraft and other aerospace applications
7079 high-strength alloy suited for highly stressed parts especially in aircraft industry
7175 has high strength; heat treatable; has combined strength and toughness machined fittings in aircraft industry
7475 offers fracture toughness and strengt used in fighter, transport, and commercial airplanes