Rolled aluminum GOST
Aluminum is element number 13 in the table of Dmitri Mendeleev, where it is designated by the symbol Al (from the Latin "Aluminium"). It is a widespread element of the Earth's crust. In its pure form it is a light paramagnetic metal of white-silver color, easily available for molding and machining. It is characterized by high thermal and electrical conductivity, as well as resistance to corrosion due to a solid oxide film that protects the surface.
Very light, with a density of 2.7 g/cm³, it has a white and silvery color. The specific heat of melting is 390 kJ/kg Technical aluminum melts at 658 ° C, and high-purity aluminum melts at 660 ° C. Aluminium boils at 2500 °C. The specific heat of vaporization is 10.53 MJ/kg. Fracture strength of pure aluminum is less than 12 kg/mm², and in the alloy it may exceed 40 kg/mm². Brinell hardness is about 30 kgf/mm². Plasticity of technical aluminum is 35%, pure Al is 50%, Young's modulus is 70 GPa. Electrical resistance 0.037 Ohmxmm2/m- 66% of electrical conductivity of copper. Thermal conductivity 203.5 W/(mxK)), Aluminum forms alloys with all known metals. Its alloys with copper, magnesium, and silicon are most in demand. The main disadvantage of aluminum - low strength, but this drawback can be overcome by alloys with copper, magnesium and other metals.
Physical properties of aluminum
|Atomic (molar) mass g/mol||26,98|
|Melting point t°С||660,3°С|
|Thermal conductivity K [W/(m-K)||237|
|Molar volume cm3/mol||10|
Pure aluminum - quite chemically active metal, but under normal conditions, its surface is covered with an oxide film that prevents its interaction with oxidants such as O2, H2 O, HNO3. It is resistant to atmospheric and soil corrosion and is therefore relevant for cladding. But when the surface oxide film is destroyed, aluminum becomes an active reducing agent.
It is a good structural material - lightweight, corrosion resistant. It can be easily stamped, drilled, cut, has great thermal conductivity, and is not toxic. Aluminum is used to produce: kitchen appliances, special foil not only for the food industry and for thermal insulation. The popularity of this metal is due to its high consumer quality and more than modest cost. Until recently, it was the material of choice for the aviation industry. Today it has begun to be superseded by such material as carbon fiber from this sector.
We supply certified aluminum rolled products in all specifications. The technical documentation includes data on the percentage composition and performance qualities of the product. From us it is easy to buy in bulk any semi-finished products for large-scale productions. We also cooperate with retail buyers. High level of service and responsiveness of service is the face of our company.
Buy at a bargain price
At the warehouse of "Elektrovek-Steel" we always have aluminum rolled products at the best price. It is formed taking into account European rates for non-ferrous metals, without the inclusion of additional costs. We supply certified products of domestic and foreign producers. Cooperation with us has a number of advantages. Our specialists will be happy to provide advice on purchasing any alloys, the correct choice of which will depend on the performance and durability of the equipment. We will help to determine not only the optimum parameters of the product, but also offer the best price.