Aluminium AD31

Aluminium AD31

AD31 aluminum alloys belong to the group of Mg-Al-Si, which features high formability. The main advantage is the excellent plastic properties. Fantastic, rolled, stamped, drawn and amenable to other types of treatment. As AD31 aluminum has high corrosion resistance and is hardened by heat treatment. In the annealed condition it has a tensile strength of 10-12 kilograms per square millimeter, and after hardening reaches 18-20 kilograms per square millimeter. Elongation at this reduced by 15-20%. Increasing the strength of the alloy and possibly at a temperature of 160-190 deg., But it is a destructive effect on the properties of the plastic. The main components of the aluminum alloy AD31 are magnesium (Mg), aluminum (Al), silicon (Si) and iron (Fe), and assume a number of impurities (Cu, Mn, Zn, Ti). Where Al main component, the proportion of Mg is 0,45-0,9%, Si 0,2-0,6% and Fe 0,35%. The proportion of impurities does not exceed 0.1%. Technical requirements for aluminum alloy AD31 regulates GOST 4784-97. Alloy used for the manufacture of parts of low strength, which are required to excellent corrosion resistance and decorative appearance. Examples can serve as the cabin of aircraft and helicopters, escalators, door frames, car body and so on. There are three most common form of ingots. This ingot weighing 7-7.5 kg, 13.5-14.5 kilograms and 16 kilograms. Standard limits the maximum weight of 20 kg ingots. Ingots due to its trapezoidal shape is very compact fit in a pack. Packages are packed and bound with tape or a metal wire.

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