Aluminium Alloy

Aluminum alloy is widely used in engineering structures.Alloy systems are classified by digital system classification (ANSI) or names representing major component alloys (DIN and ISO). Aluminum alloy can be divided into deformed aluminum alloy and cast aluminum alloy.The deformed aluminum alloy symbol is represented in four digits, which contains the proportion of the alloy composition.The four digits after the dash represent the type of heat treatment, for example, "6061-T6".Aluminum alloy for casting from 4 to 5 numbers with decimal points.Hundred bits represent alloy elements, and decimal points are used to identify castings or aluminum ingots.

than wrought alloys. The most important cast aluminium alloy system is Al-Si, where the high levels of silicon (4.0–13%) contribute to give good casting characteristics. Aluminium alloys are widely used in engineering structures and components where light weight or corrosion resistance is required.

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• Strength of aluminum

Aluminum alloy haves varying strength ranging from high, high to medium and medium strength as follows.

High mechanical strength

Alloy 2011, Alloy 2024, and Alloy 7075

Medium to high strength

Alloy 5052, and Alloy 6061

Medium strength

Alloy 6063

Not for high strength uses

Alloy 1100

Not applicable for high-strength use

alloy 1100

AlloyAl contentsAlloying elementsUses and refs
300398.6Mn 1.5; Cu 0.12Universal, sheet, rigid foil containers, signs, decorative
300497.8Mn 1.2; Mg 1Universal, beverage cans[24]
300598.5Mn 1.0; Mg 0.5Work-hardened
310299.8Mn 0.2Work-hardened[25]
3103&330398.8Mn 1.2Work-hardened
310597.8Mn 0.55; Mg 0.5Sheet
320398.8Mn 1.2Sheet, high strength foil

• Heat treatment

Aluminum can either be heat-treated or fail to respond to heat treatment as indicated below;

Treated by heat
Alloy 2011, Alloy 2024, Alloy 6061, Alloy 6063, and Alloy 7075

Fails to respond to heat treatment
Alloy 1100, Alloy 3003, and Alloy 5052

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