The aluminum is... Aluminum: composition, properties, price

Made of anodized Aluminum - a material that is created on the basis of pure aluminum with alloying elements, the inclusion of which in the composition of the melt changes the properties of the metal. Soft and lightweight aluminium acquires a load resistance, while retaining all the advantages of a pure element.

The Accidental discovery

Made of anodized Aluminum-an alloy of aluminum with small amounts of copper, which sostarivayut at a certain temperature in artificially created conditions. The material was invented in 1903 by Alfred Wilm, who served as an engineer in the German factory. During the experiments it was noticed a regularity, confirmed by long experience. He found that if alloying aluminum and 4% copper, and then tempering the resulting material at a temperature of 500°C followed by rapid cooling and aging at room temperature for several days, the result is a metal with high strength, with complete preservation of the plastic properties of the main element.

In subsequent years was obtained alloys with a large number of additives, which increased the strength of the material. At the present stage, aluminum – high strength alloy, which, depending on the species, can include copper, magnesium, silicon, zinc, etc.

Structure

The Strength properties of aluminum exhibit high levels - up to 370 MPa (strength of pure aluminum is 70-80 MPa), what makes the material popular in many areas of the industry. Aluminium alloy with chemical elements in certain proportions varies the properties of the resulting material. The base alloy consists of the classical proportions of the ingredients.

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The Aluminum composition has the following:

• Copper (Cu) - 0.5% of the total weight.
• Manganese (Mn) is 0.5% of the alloy.
• Magnesium (Mg) - 1.5% of the total mass.
• Silicon (Si) is 1.2 %.
• Iron (Fe) is about 0.1% of the composition.
• Aluminium (Al) is the main element.

Principal alloy

There are several types of alloys, distinguished by their characteristics.

What can be made of anodized aluminum (elements, alloys and quality)?

• Aluminium + manganese (Al+ Mg), aluminum magnesium (Al+ Mn), the second name of “Magnolia” – characterized by corrosion resistance, high performance brazing, welding. Poorly cutting. Alloys of these compositions are not subjected to further hardening. The material used for the manufacture of pipes of pipes, car radiators, tanks, construction works, etc.
• Aluminum + manganese + silicon (Al + Mg + Si), the alloy was given the name “avial”. Properties of aluminum the composition resistance to corrosion, lightness and strength of welds, fine grain. Annealing occurs at a temperature of +515–525°C with a sharp cooling in water (+20°C) for 10 days. The main field of application – products used in high humidity conditions, the production of materials, parts, machines in the aircraft industry, automotive industry, recently avial replaces expensive steel parts, mobile phones, etc.
• Aluminium + copper + manganese (Al+Cu+Mg), or aluminum, and structural material, depending on the need to obtain the final properties, the amount of each alloying element may vary. The alloy has found application in the aircraft industry, space industry, for the manufacture of high-speed trains (“Train”), etc. the Disadvantage of this alloy is its corrosion instability. Duralumin sheet requires careful anti-corrosion treatment, which mostly takes place by applying to the surface of pure aluminum.

Usage

Made of anodized Aluminum – it is the major material for aircraft construction and space industry. The first application to aircraft occurred in 1911 with the construction of airships. In the 21st century there are more than ten grades of this light and durable material. For details of aircraft often use brand D16T, which includes nine metals, such as titanium, Nickel, etc., and a ligature composed of copper, silicon, magnesium. The amount of aluminium in the alloy are limited to the standard content – 93%.

Not all alloys of aluminum are weldable, so many products are made with rivets and other types of fasteners. The main industrial application was the aircraft, automotive, machine tools. But not only high technology used duralumin, for example, a boat for personal use made from this material will last more than 20 years, and with good care and prevention - and even longer.

In shipbuilding material are not only hulls, but also a large number of internal parts of the body, nodes. Pipe made of aluminum, thick-walled and thin-walled, are used everywhere, from housing and communal lines to gas pipelines. Rolling the leaves are used in building structures.

Advantages and disadvantages

Made of anodized Aluminum-an alloy based on aluminum, which, as any material has advantages. Among them:

• High performance static strength.
• Long lifetime.
• Low vulnerability to destruction.
• Resistance to many corrosive environments, mechanical, thermal impact.
• Adaptability to the weld (aluminium in pure form does not respond well to welding seams).
• The large number of applications.

There is one drawback, which has a duralumin – exposure to corrosion failures. All products of the material must be planiruyut clean aluminium or covered with undercoating compounds that prevent the formation of rust.

Prices

To Acquire material is not difficult, the cost is formed depending on the component composition. Most of the plants producing non-ferrous metals, produce aluminum. The price depends on many factors, including the type of product, volume, delivery and other conditions. In the accompanying documents the manufacturer is obliged to indicate the percentage content of the alloy according to GOST, performance characteristics.

Cost of products from dural (corner, pipe, sheet) starts at 580 rubles per kilogram. If you increase the delivery quantity, the price per ton of tubes of the alloy is about 510 thousand rubles. Dural circles start in price from 250 rubles per kilogram. Round – the symbol of the workpiece material, cross-section which is a circle of various sizes, length up to 3 meters.