Briefing of 1050 aluminum alloy

1050 aluminum alloy is an aluminum-based alloy in the "commercially pure" wrought series (1000 or 1xxx series).As a wrought alloy, it is not used in castings.Instead, it is usually formed by extrusion or rolling.It is commonly used in the electrical and chemical industries due to its high electrical conductivity, corrosion resistance, and machinability.Alloy 1050 is also sometimes used to make heat sinks because it has a higher thermal conductivity than other alloys.It has lower mechanical strength compared to more alloyed metals.It can be strengthened by cold working but not by heat treatment.Alternative names and designations include Al99.5, 3.0255, and A91050.It is described in the following standard:

• ASTM B 491:Standard Specification for Extruded Round Tubing of Aluminum and Aluminum Alloys for General Applications.

• ISO 6361:Wrought aluminum and aluminum alloy sheet, strip and plate

• Chemical composition. 

The alloy composition of 1050 aluminum is: 

• Aluminum:99.5% minimum.

• Copper:0.05% max.

• Iron: up to 0.4%.

• Magnesium: up to 0.05%

• Manganese: 0.05% max.

• Silicon: 0.25% max.

• Titanium: 0.03% max.

• Vanadium: 0.05% max.

• Zinc: up to 0.05%.

Aluminum alloy:

Aluminum alloy is an alloy in which aluminum (Al) is the predominant metal.Typical alloying elements are copper,magnesium,manganese, silicon, tin, nickel and zinc.There are two main categories,cast alloys and wrought alloys, both of which are further subdivided into heat treatable and non-heat treatable categories.About 85% of aluminum is used in wrought products such as rolled plate, foil and extrusions.Due to their low melting points, cast aluminum alloys produce cost-effective products, although they generally have lower tensile strengths than wrought alloys.The most important casting aluminum alloy system is Al-Si, where a high content of silicon (4-13%) helps to provide good casting characteristics. Aluminum alloys are widely used in engineering structures and components that require lightweight or corrosion resistance.Alloys consisting primarily of aluminum have been important in aerospace manufacturing since the advent of metal-skinned aircraft.Aluminum-magnesium alloys are lighter than other aluminum alloys and are less flammable than other alloys with a high magnesium content.If not protected by anodizing and/or proper painting procedures, aluminum alloy surfaces will develop a white protective layer of aluminum oxide,occurs when aluminum alloys are in electrical contact with other metals that have a more positive corrosion potential than aluminum in a humid environment and an electrolyte that allows ion exchange is present.Also known as dissimilar metal corrosion, this process may occur as exfoliation or intergranular corrosion.Aluminum alloys can be improperly heat treated, causing internal elements to separate, corroding the metal from the inside out.The aluminum alloy composition is registered with the Aluminum Institute of America.A number of organizations publish more specific standards for aluminum alloy fabrication.