What is the general temperature resistance of aluminum plate?

The aluminum plate can withstand the high temperature of 1800℃.

Aluminum is the most abundant metal element in the crust, accounting for 8.3%. It mainly exists in aluminosilicate ores, bauxite and cryolite. Alumina is a white amorphous powder with many variants, among which α-Al is the most common. o？ What about β -alumina .

The corundum existing in nature belongs to α-Al? o？ Its hardness is second only to that of diamond, with high melting point and acid and alkali resistance. It is usually used to make some bearings, abrasives and refractories.

Extended data:

One. chemical property

Aluminum is an active metal. In dry air, a dense oxide film with a thickness of about 50 Angstroms (1 Angstrom =0. 1 nm) is immediately formed on the surface of aluminum, so it will not be further oxidized and is waterproof. However, aluminum powder is very flammable when mixed with air; Molten aluminum is a metal that can react violently with water; Aluminum is amphoteric and soluble in strong alkali and dilute acid.

Second, physical properties.

Aluminum is a silvery white light metal. It has plasticity. Commodities are usually made into columns, rods, sheets, foils, powders, ribbons and filaments. An oxide film can be formed in humid air to prevent metal corrosion. Acid-treated aluminum powder will burn violently when heated in air, and give off a dazzling white flame.

Soluble in dilute sulfuric acid, dilute nitric acid, hydrochloric acid, sodium hydroxide and potassium hydroxide solution, insoluble in water, but can slowly react with hot water to generate aluminum hydroxide, with a relative density of 2.70, an elastic modulus of 70Gpa and a Poisson's ratio of 0.33. The melting point is 660℃.

The boiling point is 2327℃. It is widely used because of its light weight, good electrical and thermal conductivity, high reflectivity and oxidation resistance. Aluminum used in daily utensils is usually called "steel refined" or "steel grade". The thermal expansion coefficient of aluminum at (room temperature) 25℃ is 0.0000236 mm/℃, that is, 23.6ppm*k- 1.

Baidu encyclopedia-aluminium